Professor Eduard Kontar
- Professor of Astrophysics (Physics & Astronomy)
telephone:
01413302499
email:
Eduard.Kontar@glasgow.ac.uk
R615 Level 6, Physics & Astronomy, Kelvin Building, Glasgow G12 8QQ
https://orcid.org/0000-0002-8078-0902Research interests
Personal webpage: http://www.astro.gla.ac.uk/users/eduard/
Eduard Kontar is Professor of Astrophysics in the School of Physics and Astronomy at the University of Glasgow, UK. His research is in solar and space physics covering solar flare energetic particle acceleration and propagation, plasma kinetic theory, solar radio and X-ray Astronomy, radio and X-ray emission mechanisms, inverse theory, and the development and application of new methods of X-ray and radio data analysis techniques.
researcherID: B-7897-2008
Publications
2024
Kontar, E. P. , Azzollini, F. and Lyubchyk, O. (2024) Advection-nonlinear-diffusion model of flare accelerated electron transport in Type III solar radio bursts. Astrophysical Journal, 976(2), 233. (doi: 10.3847/1538-4357/ad8560)
Luo, Y., Kontar, E. P. and Bhattacharjee, D. (2024) Flare accelerated electrons in Kappa-distribution from X-ray spectra with warm-target model. Astrophysical Journal, 974(1), 119. (doi: 10.3847/1538-4357/ad6a59)
Azzollini, F., Gordon Emslie, A., Clarkson, D. L. , Chrysaphi, N. and Kontar, E. P. (2024) Plasma motions and compressive wave energetics in the solar corona and solar wind from radio wave scattering observations. Astrophysical Journal, 968, 72. (doi: 10.3847/1538-4357/ad4154)
Zaslavsky, A., Kasper, J. C., Kontar, E. P. , Larson, D. E., Maksimovic, M., Marques, J. M. D. C., Nicolaou, G., Owen, C. J., Romeo, O. and Whittlesey, P. L. (2024) Probing turbulent scattering effects on suprathermal electrons in the solar wind: modeling, observations, and implications. Astrophysical Journal, 966, 60. (doi: 10.3847/1538-4357/ad2e92)
Jeffrey, N. L.S. et al. (2024) A modeling investigation for solar flare X-ray stereoscopy with Solar Orbiter/STIX and earth-orbiting missions. Astrophysical Journal, 964(2), 145. (doi: 10.3847/1538-4357/ad236f)
Kansabanik, D., Mondal, S., Oberoi, D., Chibueze, J. O., Engelbrecht, N.E., Strauss, R.D., Kontar, E.P. , Botha, G.J.J., Steyn, P.J. and Nel, A. E. (2024) Spectroscopic imaging of the sun with MeerKAT: opening a new frontier in solar physics. Astrophysical Journal, 961(1), 96. (doi: 10.3847/1538-4357/ad0b7f)
Sasikumar Raja, K. et al. (2024) Erratum: “Spectral Analysis of Solar Radio Type III Bursts from 20 kHz to 410 MHz” (2022, ApJ, 924, 58). Astrophysical Journal, 960, 93. (doi: 10.3847/1538-4357/ad1111)
2023
Reid, H. A.S. et al. (2023) The Solar Particle Acceleration Radiation and Kinetics (SPARK) mission concept. Aerospace, 10(12), 1034. (doi: 10.3390/aerospace10121034)
Chen, X. , Kontar, E. P. , Chrysaphi, N., Zhang, P., Krupar, V., Musset, S., Maksimovic, M., Jeffrey, N. L. S., Azzollini, F. and Vecchio, A. (2023) Source positions of an interplanetary type III radio burst and anisotropic radio-wave scattering. Astronomy and Astrophysics, 680, A1. (doi: 10.1051/0004-6361/202347185)
Ryan, D. F. et al. (2023) The Large Imaging Spectrometer for Solar Accelerated Nuclei (LISSAN): A next-generation solar γ-ray spectroscopic imaging instrument concept. Aerospace, 10(12), 985. (doi: 10.3390/aerospace10120985)
Kontar, E. P. , Emslie, A. G., Clarkson, D. L. , Chen, X. , Chrysaphi, N. , Azzollini, F., Jeffrey, N. L.S. and Gordovskyy, M. (2023) An anisotropic density turbulence model from the Sun to 1 au derived from radio observations. Astrophysical Journal, 956(2), 112. (doi: 10.3847/1538-4357/acf6c1)
Glesener, L. et al. (2023) The need for focused, hard X-ray investigations of the Sun. Bulletin of the American Astronomical Society, 55(3), (doi: 10.3847/25c2cfeb.78fa7c49)
Nita, G. M., Fleishman, G. D., Kuznetsov, A. A., Anfinogentov, S. A., Stupishin, A. G., Kontar, E. P. , Schonfeld, S. J., Klimchuk, J. A. and Gary, D. E. (2023) Data-constrained solar modeling with GX simulator. Astrophysical Journal Supplement Series, 267(1), 6. (doi: 10.3847/1538-4365/acd343)
Kontar, E. P. , Emslie, A. G., Motorina, G. G. and Dennis, B. R. (2023) The efficiency of electron acceleration during the impulsive phase of a solar flare. Astrophysical Journal Letters, 947(1), L13. (doi: 10.3847/2041-8213/acc9b7)
Chen, X. , Kontar, E. P. , Clarkson, D. L. and Chrysaphi, N. (2023) The frequency ratio and time delay of solar radio emissions with fundamental and harmonic components. Monthly Notices of the Royal Astronomical Society, 520(2), pp. 3117-3126. (doi: 10.1093/mnras/stad325)
Massa, P., Emslie, A. G., Hannah, I. G. and Kontar, E. P. (2023) Robust construction of differential emission measure profiles using a regularized maximum likelihood method. Astronomy and Astrophysics, 672, A120. (doi: 10.1051/0004-6361/202345883)
Clarkson, D. L. , Kontar, E. P. , Vilmer, N., Gordovskyy, M., Chen, X. and Chrysaphi, N. (2023) Solar radio spikes and type IIIb striae manifestations of subsecond electron acceleration triggered by a coronal mass ejection. Astrophysical Journal, 946(1), 33. (doi: 10.3847/1538-4357/acbd3f)
Lotz, S., Nel, A.E., Wicks, R.T., Roberts, O.W., Engelbrecht, N.E., Strauss, R.D., Botha, G.J.J., Kontar, E. P. , Pitňa, A. and Bale, S.D. (2023) The radial variation of the solar wind turbulence spectra near the kinetic break scale from Parker Solar Probe measurements. Astrophysical Journal, 942(2), 93. (doi: 10.3847/1538-4357/aca903)
2022
Kou, Y., Cheng, X., Wang, Y., Yu, S., Chen, B., Kontar, E. P. and Ding, M. (2022) Microwave imaging of quasi-periodic pulsations at flare current sheet. Nature Communications, 13, 7680. (doi: 10.1038/s41467-022-35377-0) (PMID:36509764) (PMCID:PMC9744830)
Matthews, S. A. et al. (2022) The high-energy Sun - probing the origins of particle acceleration on our nearest star. Experimental Astronomy, 54(2-3), pp. 335-360. (doi: 10.1007/s10686-021-09798-6)
Gordovskyy, M., Kontar, E. P. , Clarkson, D. L. , Chrysaphi, N. and Browning, P. K. (2022) Sizes and shapes of sources in solar metric radio bursts. Astrophysical Journal, 925(2), 140. (doi: 10.3847/1538-4357/ac3bb7)
Sasikumar Raja, K. et al. (2022) Spectral analysis of solar radio type III bursts from 20 kHz to 410 MHz. Astrophysical Journal, 924(2), 58. (doi: 10.3847/1538-4357/ac34ed)
2021
Stores, M., Jeffrey, N. L.S. and Kontar, E. P. (2021) The spatial and temporal variations of turbulence in a solar flare. Astrophysical Journal, 923(1), 40. (doi: 10.3847/1538-4357/ac2c65)
Hadid, L. Z. et al. (2021) Solar Orbiter’s first Venus flyby: observations from the Radio and Plasma Wave instrument. Astronomy and Astrophysics, 656, A18. (doi: 10.1051/0004-6361/202140934)
Maksimovic, M. et al. (2021) First observations and performance of the RPW instrument on board the Solar Orbiter mission. Astronomy and Astrophysics, 656, A41. (doi: 10.1051/0004-6361/202141271)
Musset, S. et al. (2021) Simulations of radio-wave anisotropic scattering to interpret type III radio burst data from Solar Orbiter, Parker Solar Probe, STEREO, and Wind. Astronomy and Astrophysics, 656, A34. (doi: 10.1051/0004-6361/202140998)
Maksimovic, M. et al. (2021) The Solar Orbiter Radio and Plasma Waves (RPW) instrument (Corrigendum). Astronomy and Astrophysics, 654, C2. (doi: 10.1051/0004-6361/201936214e)
Clarkson, D. L. , Kontar, E. P. , Gordovskyy, M., Chrysaphi, N. and Vilmer, N. (2021) First frequency-time-resolved imaging spectroscopy observations of solar radio spikes. Astrophysical Journal Letters, 917(2), L32. (doi: 10.3847/2041-8213/ac1a7d)
Reid, H. A.S. and Kontar, E. P. (2021) Fine structure of type III solar radio bursts from Langmuir wave motion in turbulent plasma. Nature Astronomy, 5(8), pp. 796-804. (doi: 10.1038/s41550-021-01370-8)
Fleishman, G. D., Kleint, L., Motorina, G. G., Nita, G. M. and Kontar, E. P. (2021) Energy budget of plasma motions, heating, and electron acceleration in a three-loop solar flare. Astrophysical Journal, 913(2), 97. (doi: 10.3847/1538-4357/abf495)
Arnold, H. et al. (2021) Electron acceleration during macroscale Magnetic reconnection. Physical Review Letters, 126(13), 135101. (doi: 10.1103/PhysRevLett.126.135101)
Zhang, P., Wang, C. and Kontar, E. P. (2021) Parametric simulation studies on the wave propagation of solar radio emission: the source size, duration, and position. Astrophysical Journal, 909(2), 195. (doi: 10.3847/1538-4357/abd8c5)
2020
Chen, X. , Kontar, E. P. , Chrysaphi, N. , Jeffrey, N. L.S. , Gordovskyy, M., Yan, Y. and Tan, B. (2020) Subsecond time evolution of type III solar radio burst sources at fundamental and harmonic frequencies. Astrophysical Journal, 905(1), 43. (doi: 10.3847/1538-4357/abc24e)
Gordovskyy, M., Browning, P. K., Inoue, S., Kontar, E. P. , Kusano, K. and Vekstein, G. E. (2020) Forward modeling of particle acceleration and transport in an individual solar flare. Astrophysical Journal, 902(2), 147. (doi: 10.3847/1538-4357/abb60e)
Jeffrey, N. L.S., Saint-Hilaire, P. and Kontar, E. P. (2020) Probing solar flare accelerated electron distributions with prospective X-ray polarimetry missions. Astronomy and Astrophysics, 642, A79. (doi: 10.1051/0004-6361/202038626)
Maksimovic, M. et al. (2020) The Solar Orbiter Radio and Plasma Waves (RPW) instrument. Astronomy and Astrophysics, 642, A12. (doi: 10.1051/0004-6361/201936214)
Rodríguez-Pacheco, J. et al. (2020) The Energetic Particle Detector. Energetic particle instrument suite for the Solar Orbiter mission. Astronomy and Astrophysics, 642, A7. (doi: 10.1051/0004-6361/201935287)
Zouganelis, I. et al. (2020) The Solar Orbiter Science Activity Plan. Translating solar and heliospheric physics questions into action. Astronomy and Astrophysics, 642, A3. (doi: 10.1051/0004-6361/202038445)
Kuznetsov, A. A., Chrysaphi, N. , Kontar, E. P. and Motorina, G. (2020) Radio echo in the turbulent corona and simulations of solar drift-pair radio bursts. Astrophysical Journal, 898(2), 94. (doi: 10.3847/1538-4357/aba04a)
Chrysaphi, N. , Reid, H. A.S. and Kontar, E. P. (2020) First observation of a type II solar radio burst transitioning between a stationary and drifting state. Astrophysical Journal, 893(2), 115. (doi: 10.3847/1538-4357/ab80c1)
Borissov, A., Neukirch, T., Kontar, E. P. , Threlfall, J. and Parnell, C.E. (2020) Particle acceleration with anomalous pitch angle scattering in 3D separator reconnection. Astronomy and Astrophysics, 635, A63. (doi: 10.1051/0004-6361/201936977)
Motorina, G. G., Fleishman, G. D. and Kontar, E. P. (2020) Spatiotemporal energy partitioning in a nonthermally dominated two-loop solar flare. Astrophysical Journal, 890(1), 75. (doi: 10.3847/1538-4357/ab67d1)
Krupar, V. et al. (2020) Density fluctuations in the solar wind based on type III radio bursts observed by Parker Solar Probe. Astrophysical Journal Supplement, 246(2), 57. (doi: 10.3847/1538-4365/ab65bd)
2019
Zhang, P., Yu, S., Kontar, E. P. and Wang, C. (2019) On the source position and duration of a solar type III radio burst observed by LOFAR. Astrophysical Journal, 885(2), 140. (doi: 10.3847/1538-4357/ab458f)
Aschwanden, M. J. et al. (2019) Global energetics of solar flares and coronal mass ejections. Journal of Physics: Conference Series, 1332(1), 012002. (doi: 10.1088/1742-6596/1332/1/012002)
Kuznetsov, A.A. and Kontar, E.P. (2019) First imaging spectroscopy observations of solar drift pair bursts. Astronomy and Astrophysics, 631, L7. (doi: 10.1051/0004-6361/201936447)
Kontar, E. P. , Chen, X. , Chrysaphi, N. , Jeffrey, N. L.S. , Emslie, A. G., Krupar, V., Maksimovic, M., Gordovskyy, M. and Browning, P. K. (2019) Anisotropic radio-wave scattering and the interpretation of solar radio emission observations. Astrophysical Journal, 884(2), 122. (doi: 10.3847/1538-4357/ab40bb)
Jeffrey, N. L.S. , Kontar, E. P. and Fletcher, L. (2019) The role of energy diffusion in the deposition of energetic electron energy in solar and stellar flares. Astrophysical Journal, 880(2), 136. (doi: 10.3847/1538-4357/ab2764)
Aschwanden, M. J., Kontar, E. P. and Jeffrey, N. L.S. (2019) Global energetics of solar flares. VIII. The low-energy cutoff. Astrophysical Journal, 881(1), 1. (doi: 10.3847/1538-4357/ab2cd4)
Bradshaw, S. J., Emslie, A. G., Bian, N.H. and Kontar, E. P. (2019) Coronal loop scaling laws for various forms of parallel heat conduction. Astrophysical Journal, 880(2), 80. (doi: 10.3847/1538-4357/ab287f)
Bian, N.H., Emslie, A.G. and Kontar, E.P. (2019) A Fokker–Planck framework for studying the diffusion of radio burst waves in the solar corona. Astrophysical Journal, 873(1), 33. (doi: 10.3847/1538-4357/ab0411)
Gordovskyy, M., Kontar, E. , Browning, P. and Kuznetsov, A. (2019) Frequency–distance structure of solar radio sources observed by LOFAR. Astrophysical Journal, 873(1), 48. (doi: 10.3847/1538-4357/ab03d8)
Battaglia, M., Kontar, E. P. and Motorina, G. (2019) Electron distribution and energy release in magnetic reconnection outflow regions during the pre-impulsive phase of a solar flare. Astrophysical Journal, 872(2), 204. (doi: 10.3847/1538-4357/ab01c9)
Georgoulis, M. K. and Kontar, E. P. (2019) Preface: Solar physics advances from the interior to the heliosphere. Advances in Space Research, 63(4), pp. 1387-1388. (doi: 10.1016/j.asr.2019.01.008)
Kontar, E. P. , Jeffrey, N. L.S. and Emslie, A. G. (2019) Determination of the total accelerated electron rate and power using solar flare hard X-ray spectra. Astrophysical Journal, 871(2), 225. (doi: 10.3847/1538-4357/aafad3)
Nindos, A., Kontar, E.P. and Oberoi, D. (2019) Solar physics with the Square Kilometre Array. Advances in Space Research, 63(4), pp. 1404-1424. (doi: 10.1016/j.asr.2018.10.023)
2018
Kontar, E.P. , Motorina, G.G., Jeffrey, N.L.S. , Tsap, Y.T., Fleishman, G.D. and Stepanov, A.V. (2018) Frequency rising sub-THz emission from solar flare ribbons. Astronomy and Astrophysics, 620, A95. (doi: 10.1051/0004-6361/201834124)
Chrysaphi, N. , Kontar, E. P. , Holman, G. D. and Temmer, M. (2018) CME-driven shock and type II solar radio burst band splitting. Astrophysical Journal, 868(2), 79. (doi: 10.3847/1538-4357/aae9e5)
Reid, H. A.S. and Kontar, E. P. (2018) Spatial expansion and speeds of type III electron beam sources in the solar corona. Astrophysical Journal, 867(2), 158. (doi: 10.3847/1538-4357/aae5d4)
Emslie, A. G., Bian, N. H. and Kontar, E. P. (2018) Energy deposition by energetic electrons in a diffusive collisional transport model. Astrophysical Journal, 862(2), 158. (doi: 10.3847/1538-4357/aaceaa)
Sharykin, I.N., Kontar, E.P. and Kuznetsov, A.A. (2018) LOFAR observations of fine spectral structure dynamics in type IIIb radio bursts. Solar Physics, 293(8), 115. (doi: 10.1007/s11207-018-1333-2)
Kolotkov, D. Y., Nakariakov, V. M. and Kontar, E. P. (2018) Origin of the modulation of the radio emission from the solar corona by a fast magnetoacoustic wave. Astrophysical Journal, 861(1), 33. (doi: 10.3847/1538-4357/aac77e)
Kontar, E. P. and Nindos, A. (2018) Combined radio and space-based solar observations: from techniques to new results – preface. Solar Physics, 293(6), 90. (doi: 10.1007/s11207-018-1309-2)
Reid, H. A.S. and Kontar, E. P. (2018) Solar type III radio burst time characteristics at LOFAR frequencies and the implications for electron beam transport. Astronomy and Astrophysics, 614, A69. (doi: 10.1051/0004-6361/201732298)
Krupar, V., Maksimovic, M., Kontar, E.P. , Zaslavsky, A., Santolik, O., Soucek, J., Kruparova, O., Eastwood, J.P. and Szabo, A. (2018) Interplanetary type III bursts and electron density fluctuations in the solar wind. Astrophysical Journal, 857(2), 82. (doi: 10.3847/1538-4357/aab60f)
Stackhouse, D. J. and Kontar, E. P. (2018) Spatially inhomogeneous acceleration of electrons in solar flares. Astronomy and Astrophysics, 612, A64. (doi: 10.1051/0004-6361/201730708)
Chen, X., Kontar, E. P. , Yu, S., Yan, Y., Huang, J. and Tan, B. (2018) Fine structures of solar radio type III bursts and their possible relationship with coronal density turbulence. Astrophysical Journal, 856(1), 73. (doi: 10.3847/1538-4357/aaa9bf)
Musset, S., Kontar, E.P. and Vilmer, N. (2018) Diffusive transport of energetic electrons in the solar corona: X-ray and radio diagnostics. Astronomy and Astrophysics, 610, A6. (doi: 10.1051/0004-6361/201731514)
Kontar, E.P. , Yu, S., Kuznetsov, A.A., Emslie, A.G., Alcock, B. , Jeffrey, N.L.S. , Melnik, V.N., Bian, N.H. and Subramanian, P. (2018) Publisher Correction: Imaging spectroscopy of solar radio burst fine structures. Nature Communications, 9, 146. (doi: 10.1038/s41467-017-02464-6) (PMID:29323123) (PMCID:PMC5765264)
Bian, N., Emslie, A. G., Horne, D. and Kontar, E. P. (2018) Heating and cooling of coronal loops with turbulent suppression of parallel heat conduction. Astrophysical Journal, 852(2), 127. (doi: 10.3847/1538-4357/aa9f29)
Zucca, P. et al. (2018) Shock location and CME 3D reconstruction of a solar type II radio burst with LOFAR. Astronomy and Astrophysics, 615, A89. (doi: 10.1051/0004-6361/201732308)
2017
Kontar, E.P. , Yu, S., Kuznetsov, A.A., Emslie, A.G., Alcock, B. , Jeffrey, N.L.S. , Melnik, V.N., Bian, N.H. and Subramanian, P. (2017) Imaging spectroscopy of solar radio burst fine structures. Nature Communications, 8, 1515. (doi: 10.1038/s41467-017-01307-8) (PMID:29142220) (PMCID:PMC5688146)
Casadei, D., Jeffrey, N. L.S. and Kontar, E. P. (2017) Measuring X-ray anisotropy in solar flares. Prospective stereoscopic capabilities of STIX and MiSolFA. Astronomy and Astrophysics, 606, A2. (doi: 10.1051/0004-6361/201730629)
James, T., Subramanian, P. and Kontar, E. P. (2017) Small electron acceleration episodes in the solar corona. Monthly Notices of the Royal Astronomical Society, 471(1), pp. 89-99. (doi: 10.1093/mnras/stx1460)
Reid, H. A.S. and Kontar, E. P. (2017) Imaging spectroscopy of type U and J solar radio bursts with LOFAR. Astronomy and Astrophysics, 606, A141. (doi: 10.1051/0004-6361/201730701)
Borissov, A., Kontar, E.P. , Threlfall, J. and Neukirch, T. (2017) Particle acceleration with anomalous pitch angle scattering in 2D magnetohydrodynamic reconnection simulations. Astronomy and Astrophysics, 605, A73. (doi: 10.1051/0004-6361/201731183)
Lyubchyk, O., Kontar, E.P. , Voitenko, Y.M., Bian, N.H. and Melrose, D.B. (2017) Solar plasma radio emission in the presence of imbalanced turbulence of kinetic-scale Alfvén waves. Solar Physics, 292(9), 117. (doi: 10.1007/s11207-017-1140-1)
Gordovskyy, M., Browning, P. K. and Kontar, E. P. (2017) Polarisation of microwave emission from reconnecting twisted coronal loops. Astronomy and Astrophysics, 604, A116. (doi: 10.1051/0004-6361/201629334)
Kontar, E.P. , Perez, J.E., Harra, L.K., Kuznetsov, A.A., Emslie, A.G., Jeffrey, N.L.S. , Bian, N.H. and Dennis, B.R. (2017) Turbulent kinetic energy in the energy balance of a solar flare. Physical Review Letters, 118(15), 155101. (doi: 10.1103/PhysRevLett.118.155101) (PMID:28452537)
Aschwanden, M. J. et al. (2017) Global energetics of solar flares. V. energy closure in flares and coronal mass ejections. Astrophysical Journal, 836(1), p. 17. (doi: 10.3847/1538-4357/836/1/17)
Bian, N. H., Emslie, A. G. and Kontar, E. P. (2017) The role of diffusion in the transport of energetic electrons during solar flares. Astrophysical Journal, 835(2), 262. (doi: 10.3847/1538-4357/835/2/262)
Reid, H. A.S. and Kontar, E. P. (2017) Langmuir wave electric fields induced by electron beams in the heliosphere. Astronomy and Astrophysics, 598, A44. (doi: 10.1051/0004-6361/201629697)
Christe, S. et al. (2017) Exploring impulsive solar magnetic energy release and particle acceleration with focused hard X-ray imaging spectroscopy. Technical Report. Next Generation Solar Physics Mission. (doi: 10.48550/arXiv.1701.00792).
2016
Scullion, E., Rouppe van der Voort, L., Antolin, P., Wedemeyer, S., Vissers, G., Kontar, E.P. and Gallagher, P.T. (2016) Observing the formation of flare-driven coronal rain. Astrophysical Journal, 833(2), 184. (doi: 10.3847/1538-4357/833/2/184)
Bian, N. H., Watters, J. M., Kontar, E. P. and Emslie, A. G. (2016) Anomalous cooling of coronal loops with turbulent suppression of thermal conduction. Astrophysical Journal, 833(1), 76. (doi: 10.3847/1538-4357/833/1/76)
Aschwanden, M. J., Holman, G., O’Flannagain, A., Caspi, A., McTiernan, J. M. and Kontar, E. P. (2016) Global energetics of solar flares. III. Nonthermal energies. Astrophysical Journal, 832(1), 27. (doi: 10.3847/0004-637X/832/1/27)
Huang, J., Kontar, E. P. , Nakariakov, V. M. and Gao, G. (2016) Quasi-periodic acceleration of electrons in the flare on 2012 July 19. Astrophysical Journal, 831(2), 119. (doi: 10.3847/0004-637X/831/2/119)
Tan, B.L., Karlický, M., Mészárosová, H., Kashapova, L., Huang, J., Yan, Y. and Kontar, E.P. (2016) Diagnosing the source region of a solar burst on 26 September 2011 by using microwave type-III pairs. Solar Physics, 291(8), pp. 2407-2418. (doi: 10.1007/s11207-016-0986-y)
Fleishman, G. D., Nita, G. M., Kontar, E. P. and Gary, D. E. (2016) Narrowband gyrosynchrotron bursts: probing electron acceleration in solar flares. Astrophysical Journal, 826(1), 38. (doi: 10.3847/0004-637X/826/1/38)
Bian, N. H., Kontar, E. P. and Emslie, A. G. (2016) Suppression of parallel transport in turbulent magnetized plasmas and its impact on the non-thermal and thermal aspects of solar flares. Astrophysical Journal, 824(2), 78. (doi: 10.3847/0004-637X/824/2/78)
Gordovskyy, M., Kontar, E.P. and Browning, P.K. (2016) Plasma motions and non-thermal line broadening in flaring twisted coronal loops. Astronomy and Astrophysics, 589, A104. (doi: 10.1051/0004-6361/201527249)
Tsap, Y. T., Smirnova, V. V., Morgachev, A. S., Motorina, G. G., Kontar, E. P. , Nagnibeda, V. G. and Strekalova, P. V. (2016) On the origin of 140GHz emission from the 4 July 2012 solar flare. Advances in Space Research, 57(7), pp. 1449-1455. (doi: 10.1016/j.asr.2015.12.037)
Wedemeyer, S. et al. (2016) Solar science with the Atacama Large Millimeter/Submillimeter Array—a new view of our sun. Space Science Reviews, 200(1), pp. 1-73. (doi: 10.1007/s11214-015-0229-9)
Yoon, P.H., Ziebell, L.F., Kontar, E.P. and Schlickeiser, R. (2016) Weak turbulence theory for collisional plasmas. Physical Review E, 93(3), 033203. (doi: 10.1103/PhysRevE.93.033203) (PMID:27078471)
Tigik, S.F., Ziebell, L.F., Yoon, P.H. and Kontar, E. (2016) Two dimensional time evolution of beam-plasma instability in the presence of binary collisions. Astronomy and Astrophysics, 586, A19. (doi: 10.1051/0004-6361/201527271)
2015
Wedemeyer, S. et al. (2015) SSALMON: The Solar Simulations for the Atacama Large Millimeter Observatory Network. Advances in Space Research, 56(12), pp. 2679-2692. (doi: 10.1016/j.asr.2015.05.027)
Battaglia, M., Motorina, G. and Kontar, E. P. (2015) Multithermal representation of the kappa-distribution of solar flare electrons and application to simultaneous X-ray and EUV observations. Astrophysical Journal, 815(1), p. 73. (doi: 10.1088/0004-637X/815/1/73)
Jeffrey, N. L. S. , Kontar, E. P. and Dennis, B. R. (2015) High-temperature differential emission measure and altitude variations in the temperature and density of solar flare coronal X-ray sources. Astronomy and Astrophysics, 584, A89. (doi: 10.1051/0004-6361/201526665)
Motorina, G. G. and Kontar, E. P. (2015) Differential emission measure and electron distribution function reconstructed from RHESSI and SDO observations. Geomagnetism and Aeronomy, 55(7), pp. 995-999. (doi: 10.1134/S0016793215070154)
Vanninathan, K., Veronig, A. M., Dissauer, K., Madjarska, M. S., Hannah, I. G. and Kontar, E. P. (2015) Coronal response to an EUV wave from DEM analysis. Astrophysical Journal, 812(2), 173. (doi: 10.1088/0004-637X/812/2/173)
Kontar, E. P. , Jeffrey, N. L. S. , Emslie, A. G. and Bian, N. H. (2015) Collisional relaxation of electrons in a warm plasma and accelerated nonthermal electron spectra in solar flares. Astrophysical Journal, 809(1), 35. (doi: 10.1088/0004-637X/809/1/35)
Krupar, V., Kontar, E. P. , Soucek, J., Santolik, O., Maksimovic, M. and Kruparova, O. (2015) On the speed and acceleration of electron beams triggering interplanetary type III radio bursts. Astronomy and Astrophysics, 580, A137. (doi: 10.1051/0004-6361/201425308)
Reid, H. A.S. and Kontar, E. P. (2015) Stopping frequency of type III solar radio bursts in expanding magnetic flux tubes. Astronomy and Astrophysics, 577, A124. (doi: 10.1051/0004-6361/201425309)
Nita, G. M., Fleishman, G. D., Kuznetsov, A. A., Kontar, E. P. and Gary, D. E. (2015) Three-dimensional radio and x-ray modeling and data analysis software: revealing flare complexity. Astrophysical Journal, 799(2), 236. (doi: 10.1088/0004-637X/799/2/236)
Kuznetsov, A.A. and Kontar, E.P. (2015) Spatially resolved energetic electron properties for the 21 May 2004 flare from radio observations and 3D simulations. Solar Physics, 290(1), pp. 79-93. (doi: 10.1007/s11207-014-0530-x)
Jeffrey, N. L. S. , Kontar, E. P. , Emslie, A. G. and Bian, N. H. (2015) The collisional relaxation of electrons in hot flaring plasma and inferring the properties of solar flare accelerated electrons from X-ray observations. In: 14th Annual International Astrophysics Conference: Linear and Nonlinear Particle Energization throughout the Heliosphere and Beyond, Tampa, FL, USA, 20-24 Apr 2015, (doi: 10.1088/1742-6596/642/1/012013)
Nakariakov, V. M., Bisi, M. M., Browning, P. K., Maia, D., Kontar, E. P. , Oberoi, D., Gallagher, P. T., Cairns, I. H. and Ratcliffe, H. (2015) Solar and Heliospheric Physics with the Square Kilometre Array. In: Advancing Astrophysics with the Square Kilometre Array (AASKA14), Giardini Naxos, Italy, 9-13 June 2014, p. 169.
2014
Bian, N. H., Emslie, A. G., Stackhouse, D. J. and Kontar, E. P. (2014) The formation of kappa-distribution accelerated electron populations in solar flares. Astrophysical Journal, 796(2), 142. (doi: 10.1088/0004-637X/796/2/142)
Ratcliffe, H., Kontar, E. P. and Reid, H. A. S. (2014) Large-scale simulations of solar type III radio bursts: flux density, drift rate, duration, and bandwidth. Astronomy and Astrophysics, 572, A111. (doi: 10.1051/0004-6361/201423731)
Krupar, V., Maksimovic, M., Santolik, O., Kontar, E.P. , Cecconi, B., Hoang, S., Kruparova, O., Soucek, J., Reid, H. and Zaslavsky, A. (2014) Statistical survey of Type III radio bursts at long wavelengths observed by the Solar TErrestrial RElations Observatory (STEREO)/Waves Instruments: radio flux density variations with frequency. Solar Physics, 289(8), pp. 3121-3135. (doi: 10.1007/s11207-014-0522-x)
Reid, H. A.S. , Vilmer, N. and Kontar, E. P. (2014) The low-high-low trend of Type III radio burst starting frequencies and solar flare hard X-rays. Astronomy and Astrophysics, 567, A85. (doi: 10.1051/0004-6361/201321973)
Bian, N. H., Kontar, E. P. and Ratcliffe, H. (2014) Resonance broadening due to particle scattering and mode coupling in the quasi-linear relaxation of electron beams. Journal of Geophysical Research: Space Physics, 119(6), pp. 4239-4255. (doi: 10.1002/2013JA019664)
Jeffrey, N. L.S. , Kontar, E. P. , Bian, N. H. and Emslie, A. G. (2014) On the variation of solar flare coronal X-ray source sizes with energy. Astrophysical Journal, 787(1), 86. (doi: 10.1088/0004-637X/787/1/86)
Ratcliffe, H. and Kontar, E.P. (2014) Plasma radio emission from inhomogeneous collisional plasma of a flaring loop. Astronomy and Astrophysics, 562, A57. (doi: 10.1051/0004-6361/201322263)
Kontar, E.P. , Bian, N.H., Emslie, A.G. and Vilmer, N. (2014) Turbulent pitch-angle scattering and diffusive transport of hard x-ray-producing electrons in flaring coronal loops. Astrophysical Journal, 780(2), p. 176. (doi: 10.1088/0004-637X/780/2/176)
Gordovskyy, M., Browning, P.K., Kontar, E.P. and Bian, N.H. (2014) Particle acceleration and transport in reconnecting twisted loops in a stratified atmosphere. Astronomy and Astrophysics, 561, A72. (doi: 10.1051/0004-6361/201321715)
Skinner, G.K., Dennis, B.R., Krizmanic, J.F. and Kontar, E.P. (2014) Science enabled by high precision inertial formation flying. International Journal of Space Science and Engineering, 1(4), pp. 331-348. (doi: 10.1504/IJSPACESE.2013.059271)
2013
Battaglia, M. and Kontar, E.P. (2013) Electron distribution functions in solar flares from combined x-ray and extreme-ultraviolet observations. Astrophysical Journal, 779(2), p. 107. (doi: 10.1088/0004-637X/779/2/107)
Harra, L.K., Matthews, S., Culhane, J.L., Cheung, M.C.M., Kontar, E.P. and Hara, H. (2013) The location of non-thermal velocity in the early phases of large flares—revealing pre-eruption flux ropes. Astrophysical Journal, 774(2), p. 122. (doi: 10.1088/0004-637X/774/2/122)
Reid, H.A.S. and Kontar, E.P. (2013) Evolution of the solar flare energetic electrons in the inhomogeneous inner heliosphere. Solar Physics, 285(1-2), pp. 217-232. (doi: 10.1007/s11207-012-0013-x)
Dickson, E.C.M. and Kontar, E.P. (2013) Measurements of electron anisotropy in solar flares using albedo with RHESSI X-ray data. Solar Physics, 284(2), pp. 405-425. (doi: 10.1007/s11207-012-0178-3)
Gordovskyy, M., Browning, P.K., Kontar, E.P. and Bian, N.H. (2013) Effect of collisions and magnetic convergence on electron acceleration and transport in reconnecting twisted solar flare loops. Solar Physics, 284(2), pp. 489-498. (doi: 10.1007/s11207-012-0124-4)
Fleishman, G.D., Kontar, E.P. , Nita, G.M. and Gary, D.E. (2013) Probing dynamics of electron acceleration with radio and x-ray spectroscopy, imaging, and timing in the 2002 april 11 solar flare. Astrophysical Journal, 768(2), p. 190. (doi: 10.1088/0004-637X/768/2/190)
Hannah, I.E. and Kontar, E.P. (2013) Multi-thermal dynamics and energetics of a coronal mass ejection in the low solar atmosphere. Astronomy and Astrophysics, 553, A10. (doi: 10.1051/0004-6361/201219727)
Bian, N.H. and Kontar, E.P. (2013) Stochastic acceleration by multi-island contraction during turbulent magnetic reconnection. Physical Review Letters, 110(15), 151101. (doi: 10.1103/PhysRevLett.110.151101) (PMID:25167241)
Jeffrey, N.L.S. and Kontar, E.P. (2013) Temporal variations of x-ray solar flare loops: length, corpulence, position, temperature, plasma pressure, and spectra. Astrophysical Journal, 766(2), Art. 75. (doi: 10.1088/0004-637X/766/2/75)
Simoes, P. J. A. and Kontar, E. P. (2013) Implications for electron acceleration and transport from non-thermal electron rates at looptop and footpoint sources in solar flares. Astronomy and Astrophysics, 551, A135. (doi: 10.1051/0004-6361/201220304)
Hannah, I.G. , Kontar, E.P. and Reid, H.A.S. (2013) Effect of turbulent density-fluctuations on wave-particle interactions and solar flare X-ray spectra. Astronomy and Astrophysics, 550, A51. (doi: 10.1051/0004-6361/201220462)
2012
Battaglia, M. and Kontar, E.P. (2012) RHESSI and SDO/AIA observations of the chromospheric and coronal plasma parameters during a solar flare. Astrophysical Journal, 760(2), Art. 142. (doi: 10.1088/0004-637X/760/2/142)
Ratcliffe, H., Bian, N.H. and Kontar, E.P. (2012) Density fluctuations and the acceleration of electrons by beam-generated langmuir waves in the solar corona. Astrophysical Journal, 761(2), p. 176. (doi: 10.1088/0004-637X/761/2/176)
Bian, N.H., Emslie, A.G. and Kontar, E.P. (2012) A classification scheme for turbulent acceleration processes in solar flares. Astrophysical Journal, 754(2), Art. 103. (doi: 10.1088/0004-637X/754/2/103)
Karlický, M. and Kontar, E.P. (2012) Electron acceleration during three-dimensional relaxation of an electron beam-return current plasma system in a magnetic field. Astronomy and Astrophysics, 544, A148. (doi: 10.1051/0004-6361/201219400)
Guo, J., Emslie, A.G., Kontar, E.P. , Benvenuto, F., Massone, A.M. and Piana, M. (2012) Determination of the acceleration region size in a loop-structured solar flare. Astronomy and Astrophysics, 543, A53. (doi: 10.1051/0004-6361/201219341)
Battaglia, M., Kontar, E.P. , Fletcher, L. and MacKinnon, A.L. (2012) Numerical simulations of chromospheric hard X-ray source sizesin solar flares. Astrophysical Journal, 752(1), (doi: 10.1088/0004-637X/752/1/4)
Matthews, S.A. et al. (2012) Solar particle acceleration radiation and kinetics (SPARK). Experimental Astronomy, 33(2-3), pp. 237-269. (doi: 10.1007/s10686-011-9260-3)
Hannah, I.G. and Kontar, E.P. (2012) Differential emission measures from the regularized inversion of Hinode and SDO data. Astronomy and Astrophysics, 539, (doi: 10.1051/0004-6361/201117576)
Kontar, E.P. , Ratcliffe, H. and Bian, N.H. (2012) Wave-particle interactions in non-uniform plasma and the interpretation of hard X-ray spectra in solar flares. Astronomy and Astrophysics, 539, A43. (doi: 10.1051/0004-6361/201118216)
2011
Krucker, S., Kontar, E.P. , Christe, S., Glesener, L. and Lin, R.P. (2011) Electron acceleration associated with solar jets. Astrophysical Journal, 742(2), (doi: 10.1088/0004-637X/742/2/82)
Jeffrey, N.L.S. and Kontar, E.P. (2011) Spatially resolved hard X-ray polarization in solar flares: effects of Compton scattering and bremsstrahlung. Astronomy and Astrophysics, 536, (doi: 10.1051/0004-6361/201117987)
Krucker, S., Hudson, H.S. , Jeffrey, N.L.S. , Battaglia, M., Kontar, E.P. , Benz, A.O., Csillaghy, A. and Lin, R.P. (2011) High-resolution imaging of solar flare ribbons and its implication on the thick-target beam model. Astrophysical Journal, 739(2), p. 96. (doi: 10.1088/0004-637X/739/2/96)
Battaglia, M. and Kontar, E.P. (2011) Height structure of X-ray, EUV, and white-light emission in a solar flare. Astronomy and Astrophysics, 533, (doi: 10.1051/0004-6361/201117605)
Holman, G.D., Aschwanden, M.J., Aurass, H., Battaglia, M., Grigis, P.C., Kontar, E.P. , Liu, W., Saint-Hilaire, P. and Zharkova, V.V. (2011) Implications of X-ray observations for electron acceleration and propagation in solar flares. Space Science Reviews, 159(1-4), pp. 107-166. (doi: 10.1007/s11214-010-9680-9)
Kontar, E.P. et al. (2011) Deducing electron properties from hard X-ray observations. Space Science Reviews, 159(1-4), pp. 301-355. (doi: 10.1007/s11214-011-9804-x)
Zharkova, V.V. et al. (2011) Recent advances in understanding particle acceleration processes in solar flares. Space Science Reviews, 159(1-4), pp. 357-420. (doi: 10.1007/s11214-011-9803-y)
Battaglia, M. and Kontar, E.P. (2011) Hard X-Ray footpoint sizes and positions as diagnostics of flare accelerated energetic electrons in the low solar atmosphere. Astrophysical Journal, 735(1), p. 42. (doi: 10.1088/0004-637X/735/1/42)
Inglis, A.R., Zimovets, I.V., Dennis, B.R., Kontar, E.P. , Nakariakov, V.M., Struminsky, A.B. and Tolbert, A.K. (2011) Instrumental oscillations in RHESSI count rates during solar flares. Astronomy and Astrophysics, 530, (doi: 10.1051/0004-6361/201016322)
Hannah, I.G. and Kontar, E.P. (2011) The spectral difference between solar flare HXR coronal and footpoint sources due to wave-particle interactions. Astronomy and Astrophysics, 529, (doi: 10.1051/0004-6361/201015710)
Reid, H.A.S. , Vilmer, N. and Kontar, E.P. (2011) Characteristics of the flare acceleration region derived from simultaneous hard X-ray and radio observations. Astronomy and Astrophysics, 529, (doi: 10.1051/0004-6361/201016181)
Kontar, E.P. , Hannah, I.G. and Bian, N.H. (2011) Acceleration, magnetic fluctuations, and cross-field transport of energetic electrons in a solar flare loop. Astrophysical Journal Letters, 730, (doi: 10.1088/2041-8205/730/2/L22)
Fleishman, G.D., Kontar, E.P. , Nita, G.M. and Gary, D.E. (2011) A cold, tenuous solar flare: acceleration without heating. Astrophysical Journal Letters, 731(1), (doi: 10.1088/2041-8205/731/1/L19)
Guo, J., Liu, S., Fletcher, L. and Kontar, E.P. (2011) Relationship between hard and soft X-ray emission components of a solar flare. Astrophysical Journal, 728(1), (doi: 10.1088/0004-637X/728/1/4)
Battaglia, M., Kontar, E.P. and Hannah, I.G. (2011) The influence of albedo on the size of hard X-ray flare sources. Astronomy and Astrophysics, 526, (doi: 10.1051/0004-6361/201014798)
Bian, N.H. and Kontar, E.P. (2011) Parallel electric field amplification by phase mixing of Alfven waves. Astronomy and Astrophysics, 527, (doi: 10.1051/0004-6361/201015385)
Bian, N.H., Kontar, E.P. and MacKinnon, A.L. (2011) Turbulent cross-field transport of non-thermal electrons in coronal loops: theory and observations. Astronomy and Astrophysics, 535(A18), (doi: 10.1051/0004-6361/201117574)
2010
Reid, H.A.S. and Kontar, E.P. (2010) Solar wind density turbulence and solar flare electron transport from the Sun to the Earth. Astrophysical Journal, 721(1), pp. 864-874. (doi: 10.1088/0004-637X/721/1/864)
Kontar, E.P. , Hannah, I.G. , Jeffrey, N.L.S. and Battaglia, M. (2010) The sub-arcsecond hard x-ray structure of loop footpoints in a solar flare. Astrophysical Journal, 717(1), pp. 250-256. (doi: 10.1088/0004-637X/717/1/250)
Temmer, M., Veronig, A.N., Kontar, E.P. , Krucker, S. and Vrsnak, B. (2010) Combined stereo/Rhessi study of coronal mass ejection acceleration and particle acceleration in solar flares. Astrophysical Journal, 712(2), pp. 1410-1420. (doi: 10.1088/0004-637X/712/2/1410)
Kontar, E.P. and Jeffrey, N.L.S. (2010) Positions and sizes of X-ray solar flare sources. Astronomy and Astrophysics, 513, (doi: 10.1051/0004-6361/201014066)
Fleishman, G.D. and Kontar, E.P. (2010) Sub-THz radiation mechanisms in solar flares. Astrophysical Journal Letters, 709(2), pp. 127-132. (doi: 10.1088/2041-8205/709/2/L127)
Bian, N.H. and Kontar, E.P. (2010) A gyrofluid description of Alfvenic turbulence and its parallel electric field. Physics of Plasmas, 17(6), (doi: 10.1063/1.3439682)
Bian, N.H., Kontar, E.P. and Brown, J.C. (2010) Parallel electric field generation by Alfvén wave turbulence. Astronomy and Astrophysics, 519, (doi: 10.1051/0004-6361/201014048)
2009
Hannah, I.G., Kontar, E.P. and Sirenko, O.K. (2009) The effect of wave-particle interactions on low-energy cutoffs in solar flare electron spectra. Astrophysical Journal Letters, 707(1), pp. 45-50. (doi: 10.1088/0004-637X/707/1/L45)
Brown, J.C., Turkmani, R., Kontar, E.P. , MacKinnon, A.L. and Vlahos, L. (2009) Local re-acceleration and a modified thick target model of solar flare electrons. Astronomy and Astrophysics, 508(2), pp. 993-1000. (doi: 10.1051/0004-6361/200913145)
Prato, M., Emslie, A.G., Kontar, E.P. , Massone, A.M. and Piana, M. (2009) The location of centroids in photon and electron maps of solar flares. Astrophysical Journal, 706(1), pp. 917-922. (doi: 10.1088/0004-637X/706/1/917)
Massone, A.M., Emslie, A.G., Hurford, G.J., Prato, M., Kontar, E.P. and Piana, M. (2009) Hard X-ray imaging of solar flares using interpolated visibilities. Astrophysical Journal, 703(2), pp. 2004-2016. (doi: 10.1088/0004-637X/703/2/2004)
Prato, M., Piana, M., Emslie, A.G., Hurford, G.J., Kontar, E.P. and Massone, A.M. (2009) A regularized visibility-based approach to astronomical imaging spectroscopy. SIAM: Journal on Imaging Sciences, 2(3), pp. 910-930. (doi: 10.1137/090746355)
Kontar, E.P. and Reid, H.A.S. (2009) Onsets and spectra of impulsive solar energetic electron events observed near the Earth. Astrophysical Journal Letters, 695(2), pp. 140-144. (doi: 10.1088/0004-637X/695/2/L140)
2008
De Moortel, I., Browning, P.K., Bradshaw, S.J., Pintér, B. and Kontar, E.P. (2008) The way forward for coronal heating. Astronomy and Geophysics, 49(3), pp. 21-26. (doi: 10.1111/j.1468-4004.2008.49321.x)
Kontar, E.P., Dickson, E. and Kasparova, J. (2008) Low-energy cutoffs in electron spectra of solar flares: Statistical survey. Solar Physics, 252(1), pp. 139-147. (doi: 10.1007/s11207-008-9249-x)
Kontar, E.P. , Hannah, I.G. and MacKinnon, A.L. (2008) Chromospheric magnetic field and density structure measurements using hard X-rays in a flaring coronal loop. Astronomy and Astrophysics, 489(3), L57-L60. (doi: 10.1051/0004-6361:200810719)
Prato, M., Massone, A.M., Piana, M., Emslie, A.G., Hurford, G.J., Kontar, E.P. and Schwartz, R.A. (2008) A visibility-based approach using regularization for imaging-spectroscopy in solar X-ray astronomy. Journal of Physics: Conference Series, 135, (doi: 10.1088/1742-6596/135/1/012084)
Sullivan, J.M., Lockwood, M., Lanchester, B.S., Kontar, E.P. , Ivchenko, N., Dahlgren, H. and Whiter, D.K. (2008) An optical study of multiple NEIAL events driven by low energy electron precipitation. Annales Geophysicae, 26(8), pp. 2435-2447. (doi: 10.5194/angeo-26-2435-2008)
2007
Piana, M., Massone, A.M., Hurford, G.J., Prato, M., Emslie, A.G., Kontar, E.P. and Schwartz, R.A. (2007) Electron flux spectral imaging of solar flares through regularized analysis of hard X-ray source visibilities. Astrophysical Journal, 665, pp. 846-855. (doi: 10.1086/519518)
Krucker, S., Kontar, E.P. , Christe, S. and Lin, R.P. (2007) Solar flare electron spectra at the sun and near the earth. Astrophysical Journal Letters, 663(2), L109. (doi: 10.1086/519373)
Brown, J.C., Kontar, E.P. and Veronig, A.M. (2007) RHESSI results - time for a rethink? In: Klein, K.L. and MacKinnon, A.L. (eds.) The High Energy Solar Corona: Waves, Eruptions, Particles. Series: Lecture Notes in Physics, 725. Springer, pp. 65-80. ISBN 9783540715696 (doi: 10.1007/978-3-540-71570-2_4)
Kašparová, J., Kontar, E.P. and Brown, J.C. (2007) Hard X-ray spectra and positions of solar flares observed by RHESSI: photospheric albedo, directivity and electron spectra. Astronomy and Astrophysics, 466, pp. 705-712. (doi: 10.1051/0004-6361:20066689)
Kontar, E.P., Emslie, A.G., Massone, A.M., Piana, M., Brown, J.C. and Prato, M. (2007) Electron-electron bremsstrahlung emission and the inference of electron flux spectra in solar flares. Astrophysical Journal, 670(1), pp. 857-861. (doi: 10.1086/521977)
2006
Kontar, E.P. and Brown, J.C. (2006) Stereoscopic electron spectroscopy of solar hard x-ray flares with a single spacecraft. Astrophysical Journal Letters, 653(2), L149-L152. (doi: 10.1086/510586)
Prato, M., Piana, M., Brown, J.C., Emslie, A.G., Kontar, E.P. and Massone, A.M. (2006) Regularized reconstruction of the differential emission measure from solar flare hard X-ray spectra. Solar Physics, 237(1), pp. 61-83. (doi: 10.1007/s11207-006-0029-1)
Brown, J.C., Emslie, G., Holman, G.D., Johns-Krull, C.M., Kontar, E.P. , Lin, R.P., Massone, A.M. and Piana, M. (2006) Evaluation of algorithms for reconstructing electron spectra from their bremsstrahlung hard X-Ray spectra. Astrophysical Journal, 643, pp. 523-531. (doi: 10.1086/501497)
Kontar, E.P. , MacKinnon, A.L. , Schwartz, R.A. and Brown, J.C. (2006) Compton backscattered and primary x-rays from solar flares: angle dependent Green's function correction for photospheric albedo. Astronomy and Astrophysics, 446, pp. 1157-1163. (doi: 10.1051/0004-6361:20053672)
Kontar, E.P. and Brown, J.C. (2006) Solar flare hard X-ray spectra possibly inconsistent with the collisional thick target model. Advances in Space Research, 38(5), pp. 945-950. (doi: 10.1016/j.asr.2005.09.029)
2005
Kašparová, J., Karlicky, M., Kontar, E.P., Schwartz, R.A. and Dennis, B.R. (2005) Multi-wavelength analysis of high-energy electrons in solar flares: a case study of the August 20, 2002 flare. Solar Physics, 232(1-2), pp. 63-86. (doi: 10.1007/s11207-005-1581-9)
Kontar, E.P. and MacKinnon, A.L. (2005) Regularized energy-dependent solar flare hard x-Ray spectral index. Solar Physics, 227(2), pp. 299-310. (doi: 10.1007/s11207-005-1101-y)
Kontar, E.P., Emslie, A.G., Piana, M., Massone, A.M. and Brown, J.C. (2005) Determination of electron flux spectra in a solar flare with an augmented regularization method: application to RHESSI data. Solar Physics, 226(2), pp. 317-325. (doi: 10.1007/s11207-005-7150-4)
Brown, J.C. and Kontar, E.P. (2005) Problems and progress in flare fast particle diagnostics. Advances in Space Research, 35(10), pp. 1675-1682. (doi: 10.1016/j.asr.2005.03.020)
Galloway, R.K., MacKinnon, A.L. , Kontar, E.P. and Helander, P. (2005) Fast electron slowing-down and diffusion in a high temperature coronal X-ray source. Astronomy and Astrophysics, 438(3), pp. 1107-1114. (doi: 10.1051/0004-6361:20042137)
Kontar, E.P. and Pécseli, H.L. (2005) Nonlinear wave interactions as a model for naturally enhanced ion acoustic lines in the ionosphere. Geophysical Research Letters, 32(L05110), (doi: 10.1029/2004GL022182)
2004
Kontar, E.P., Piana, M., Massone, A.M., Emslie, A.G. and Brown, J.C. (2004) Generalized regularization techniques with constraints for the analysis of solar bremsstrahlung x-ray spectra. Solar Physics, 225(2), pp. 293-309. (doi: 10.1007/s11207-004-4140-x)
Massone, A.M., Emslie, A.G., Kontar, E.P. , Piana, M., Prato, M. and Brown, J.C. (2004) Anisotropic bremsstrahlung emission and the form of regularized electron flux spectra in solar flares. Astrophysical Journal, 613(2), pp. 1233-1240. (doi: 10.1086/423127)
2003
Brown, J.C., Emslie, A.G. and Kontar, E.P. (2003) The determination and use of mean electron flux spectra in solar flares. Astrophysical Journal, 595(2(2)), L115 -L117. (doi: 10.1086/378169)
Piana, M., Massone, A. M., Kontar, E. P. , Emslie, A. G., Brown, J. C. and Schwartz, R. A. (2003) Regularized electron flux spectra in the 2002 July 23 solar flare. Astrophysical Journal, 595(2), L127 -L130. (doi: 10.1086/378171)
Mel'Nik, V.V. and Kontar, E.P. (2003) Plasma radio emission of beam-plasma structures in the solar corona. Solar Physics, 215(2), pp. 335-341. (doi: 10.1023/A:1025689116449)
Kontar, E.P. and Mel'nik, V.N. (2003) Weakly turbulent electron cloud transport in a plasma with an external electric field. Physics of Plasmas, 10, pp. 2732-2737. (doi: 10.1063/1.1581881)
Conway, A.J., Brown, J.C., Eves, B.A.C. and Kontar, E.P. (2003) Implications of solar flare hard X-ray "knee" spectra observed by RHESSI. Astronomy and Astrophysics, 407(2), pp. 725-734. (doi: 10.1051/0004-6361:20030897)
Emslie, A.G., Kontar, E.P., Krucker, S. and Lin, R.P. (2003) RHESSI hard x-ray imaging spectroscopy of the large gamma-ray flare of 2002 July 23. Astrophysical Journal Letters, 595(2), L107-L110. (doi: 10.1086/378931)
Kontar, E.P., Brown, J.C., Emslie, A.G., Schwartz, R.A., Smith, D.M. and Alexander, R.C. (2003) An explanation for non-power-law behavior in the hard X-ray spectrum of the 2002 July 23 solar flare. Astrophysical Journal, 595(2), L123 -L126.
2002
Pozhar, L.A., Kontar, E.P. and Hu, M.Z. (2002) Transport properties of nanosystems: viscosity of nanofluids confined in slit nanopores. Journal of Nanoscience and Nanotechnology, 2(2), pp. 209-227. (doi: 10.1166/jnn.2002.088)
Aschwanden, M.J., Brown, J.C. and Kontar, E.P. (2002) Chromospheric height and density measurements in a solar flare observed with RHESSI - II - Data analysis. Solar Physics, 210(1-2), 383 -405. (doi: 10.1023/A:1022472319619)
Brown, J.C., Aschwanden, M.J. and Kontar, E.P. (2002) Chromospheric height and density measurements in a solar flare observed with RHESSI - I - Theory. Solar Physics, 210(1-2), 373 -381. (doi: 10.1023/A:1022469402781)
Kontar, E. (2002) Quantitative evaluation of massive sulfide ore formation. Geology of Ore Deposits, 44(6), pp. 474-485.
Kontar, E.P. (2002) Nonlinear development of electron-beam-driven weak turbulence in an inhomogeneous plasma. Physical Review E, 65(6), (doi: 10.1103/PhysRevE.65.066408)
Kontar, E.P. , Brown, J.C. and McArthur, G.K. (2002) Nonuniform target ionization and fitting thick target electron injection spectra to RHESSI data. Solar Physics, 210(1-2), 419 -429. (doi: 10.1023/A:1022494318540)
2001
Kontar, E.P. , Mel'nik, V.N. and Lapshin, V.I. (2001) Dynamics of a fast Maxwellian electron cloud in coronal plasma. Radio Science, 36(6), pp. 1757-1764. (doi: 10.1029/2000RS002453)
Kontar, E.P. (2001) Numerical consideration of quasilinear electron cloud dynamics in plasma. Computer Physics Communications, 138(3), pp. 222-233. (doi: 10.1016/S0010-4655(01)00214-4)
Kontar, E. (2001) Propagation of a fast electron cloud in a solar-like plasma of decreasing density. Plasma Physics and Controlled Fusion, 43(4), pp. 589-601.
Kontar, E.P. (2001) Dynamics of electron beams in the inhomogeneous solar corona plasma. Solar Physics, 202(1), pp. 131-149. (doi: 10.1023/A:1011894830942)
Kontar, E.P. (2001) Dynamics of electron beams in the solar corona plasma with density fluctuations. Astronomy and Astrophysics, 375, pp. 629-637. (doi: 10.1051/0004-6361:20010807)
2000
Mel'nik, V.N., Kontar, E.P. and Lapshin, V.I. (2000) Propagation of a Maxwellian electron cloud in a plasma. Solar Physics, 196(1), pp. 199-212. (doi: 10.1023/A:1005282324985)
Mel'nik, V.N. and Kontar, E.P. (2000) To gasdynamic description of a hot electron cloud in a cold plasma. New Astronomy, 5(1), pp. 35-42. (doi: 10.1016/S1384-1076(00)00004-X)
1999
Mel'nik, V.N. and Kontar, E.P. (1999) The spread of the hot electron cloud in the solar corona. New Astronomy, 4(1), pp. 41-44. (doi: 10.1016/S1384-1076(98)00044-X)
Mel'nik, V.N., Lapshin, V. and Kontar, E.P. (1999) Propagation of a monoenergetic electron beam in the solar corona. Solar Physics, 184(2), pp. 353-362. (doi: 10.1023/A:1005191910544)
1998
Kontar, E.P. , Lapshin, V.I. and Mel'Nik, V.N. (1998) Numerical and analytical study of the propagation of a monoenergetic electron beam in a plasma. Plasma Physics Reports, 24, pp. 772-776.
Mel'Nik, V.N. and Kontar, E.P. (1998) Gasdynamic description of electron-beam flying-off in a plasma. Journal of Plasma Physics, 60(1), pp. 49-64. (doi: 10.1017/S0022377898006539)
Mel’nik, V.N. and Kontar, E.P. (1998) Beam-plasma structures at propagation of electron beams in plasma. Physica Scripta, 58(5), pp. 510-517. (doi: 10.1088/0031-8949/58/5/015)
Articles
Kontar, E. P. , Azzollini, F. and Lyubchyk, O. (2024) Advection-nonlinear-diffusion model of flare accelerated electron transport in Type III solar radio bursts. Astrophysical Journal, 976(2), 233. (doi: 10.3847/1538-4357/ad8560)
Luo, Y., Kontar, E. P. and Bhattacharjee, D. (2024) Flare accelerated electrons in Kappa-distribution from X-ray spectra with warm-target model. Astrophysical Journal, 974(1), 119. (doi: 10.3847/1538-4357/ad6a59)
Azzollini, F., Gordon Emslie, A., Clarkson, D. L. , Chrysaphi, N. and Kontar, E. P. (2024) Plasma motions and compressive wave energetics in the solar corona and solar wind from radio wave scattering observations. Astrophysical Journal, 968, 72. (doi: 10.3847/1538-4357/ad4154)
Zaslavsky, A., Kasper, J. C., Kontar, E. P. , Larson, D. E., Maksimovic, M., Marques, J. M. D. C., Nicolaou, G., Owen, C. J., Romeo, O. and Whittlesey, P. L. (2024) Probing turbulent scattering effects on suprathermal electrons in the solar wind: modeling, observations, and implications. Astrophysical Journal, 966, 60. (doi: 10.3847/1538-4357/ad2e92)
Jeffrey, N. L.S. et al. (2024) A modeling investigation for solar flare X-ray stereoscopy with Solar Orbiter/STIX and earth-orbiting missions. Astrophysical Journal, 964(2), 145. (doi: 10.3847/1538-4357/ad236f)
Kansabanik, D., Mondal, S., Oberoi, D., Chibueze, J. O., Engelbrecht, N.E., Strauss, R.D., Kontar, E.P. , Botha, G.J.J., Steyn, P.J. and Nel, A. E. (2024) Spectroscopic imaging of the sun with MeerKAT: opening a new frontier in solar physics. Astrophysical Journal, 961(1), 96. (doi: 10.3847/1538-4357/ad0b7f)
Sasikumar Raja, K. et al. (2024) Erratum: “Spectral Analysis of Solar Radio Type III Bursts from 20 kHz to 410 MHz” (2022, ApJ, 924, 58). Astrophysical Journal, 960, 93. (doi: 10.3847/1538-4357/ad1111)
Reid, H. A.S. et al. (2023) The Solar Particle Acceleration Radiation and Kinetics (SPARK) mission concept. Aerospace, 10(12), 1034. (doi: 10.3390/aerospace10121034)
Chen, X. , Kontar, E. P. , Chrysaphi, N., Zhang, P., Krupar, V., Musset, S., Maksimovic, M., Jeffrey, N. L. S., Azzollini, F. and Vecchio, A. (2023) Source positions of an interplanetary type III radio burst and anisotropic radio-wave scattering. Astronomy and Astrophysics, 680, A1. (doi: 10.1051/0004-6361/202347185)
Ryan, D. F. et al. (2023) The Large Imaging Spectrometer for Solar Accelerated Nuclei (LISSAN): A next-generation solar γ-ray spectroscopic imaging instrument concept. Aerospace, 10(12), 985. (doi: 10.3390/aerospace10120985)
Kontar, E. P. , Emslie, A. G., Clarkson, D. L. , Chen, X. , Chrysaphi, N. , Azzollini, F., Jeffrey, N. L.S. and Gordovskyy, M. (2023) An anisotropic density turbulence model from the Sun to 1 au derived from radio observations. Astrophysical Journal, 956(2), 112. (doi: 10.3847/1538-4357/acf6c1)
Glesener, L. et al. (2023) The need for focused, hard X-ray investigations of the Sun. Bulletin of the American Astronomical Society, 55(3), (doi: 10.3847/25c2cfeb.78fa7c49)
Nita, G. M., Fleishman, G. D., Kuznetsov, A. A., Anfinogentov, S. A., Stupishin, A. G., Kontar, E. P. , Schonfeld, S. J., Klimchuk, J. A. and Gary, D. E. (2023) Data-constrained solar modeling with GX simulator. Astrophysical Journal Supplement Series, 267(1), 6. (doi: 10.3847/1538-4365/acd343)
Kontar, E. P. , Emslie, A. G., Motorina, G. G. and Dennis, B. R. (2023) The efficiency of electron acceleration during the impulsive phase of a solar flare. Astrophysical Journal Letters, 947(1), L13. (doi: 10.3847/2041-8213/acc9b7)
Chen, X. , Kontar, E. P. , Clarkson, D. L. and Chrysaphi, N. (2023) The frequency ratio and time delay of solar radio emissions with fundamental and harmonic components. Monthly Notices of the Royal Astronomical Society, 520(2), pp. 3117-3126. (doi: 10.1093/mnras/stad325)
Massa, P., Emslie, A. G., Hannah, I. G. and Kontar, E. P. (2023) Robust construction of differential emission measure profiles using a regularized maximum likelihood method. Astronomy and Astrophysics, 672, A120. (doi: 10.1051/0004-6361/202345883)
Clarkson, D. L. , Kontar, E. P. , Vilmer, N., Gordovskyy, M., Chen, X. and Chrysaphi, N. (2023) Solar radio spikes and type IIIb striae manifestations of subsecond electron acceleration triggered by a coronal mass ejection. Astrophysical Journal, 946(1), 33. (doi: 10.3847/1538-4357/acbd3f)
Lotz, S., Nel, A.E., Wicks, R.T., Roberts, O.W., Engelbrecht, N.E., Strauss, R.D., Botha, G.J.J., Kontar, E. P. , Pitňa, A. and Bale, S.D. (2023) The radial variation of the solar wind turbulence spectra near the kinetic break scale from Parker Solar Probe measurements. Astrophysical Journal, 942(2), 93. (doi: 10.3847/1538-4357/aca903)
Kou, Y., Cheng, X., Wang, Y., Yu, S., Chen, B., Kontar, E. P. and Ding, M. (2022) Microwave imaging of quasi-periodic pulsations at flare current sheet. Nature Communications, 13, 7680. (doi: 10.1038/s41467-022-35377-0) (PMID:36509764) (PMCID:PMC9744830)
Matthews, S. A. et al. (2022) The high-energy Sun - probing the origins of particle acceleration on our nearest star. Experimental Astronomy, 54(2-3), pp. 335-360. (doi: 10.1007/s10686-021-09798-6)
Gordovskyy, M., Kontar, E. P. , Clarkson, D. L. , Chrysaphi, N. and Browning, P. K. (2022) Sizes and shapes of sources in solar metric radio bursts. Astrophysical Journal, 925(2), 140. (doi: 10.3847/1538-4357/ac3bb7)
Sasikumar Raja, K. et al. (2022) Spectral analysis of solar radio type III bursts from 20 kHz to 410 MHz. Astrophysical Journal, 924(2), 58. (doi: 10.3847/1538-4357/ac34ed)
Stores, M., Jeffrey, N. L.S. and Kontar, E. P. (2021) The spatial and temporal variations of turbulence in a solar flare. Astrophysical Journal, 923(1), 40. (doi: 10.3847/1538-4357/ac2c65)
Hadid, L. Z. et al. (2021) Solar Orbiter’s first Venus flyby: observations from the Radio and Plasma Wave instrument. Astronomy and Astrophysics, 656, A18. (doi: 10.1051/0004-6361/202140934)
Maksimovic, M. et al. (2021) First observations and performance of the RPW instrument on board the Solar Orbiter mission. Astronomy and Astrophysics, 656, A41. (doi: 10.1051/0004-6361/202141271)
Musset, S. et al. (2021) Simulations of radio-wave anisotropic scattering to interpret type III radio burst data from Solar Orbiter, Parker Solar Probe, STEREO, and Wind. Astronomy and Astrophysics, 656, A34. (doi: 10.1051/0004-6361/202140998)
Maksimovic, M. et al. (2021) The Solar Orbiter Radio and Plasma Waves (RPW) instrument (Corrigendum). Astronomy and Astrophysics, 654, C2. (doi: 10.1051/0004-6361/201936214e)
Clarkson, D. L. , Kontar, E. P. , Gordovskyy, M., Chrysaphi, N. and Vilmer, N. (2021) First frequency-time-resolved imaging spectroscopy observations of solar radio spikes. Astrophysical Journal Letters, 917(2), L32. (doi: 10.3847/2041-8213/ac1a7d)
Reid, H. A.S. and Kontar, E. P. (2021) Fine structure of type III solar radio bursts from Langmuir wave motion in turbulent plasma. Nature Astronomy, 5(8), pp. 796-804. (doi: 10.1038/s41550-021-01370-8)
Fleishman, G. D., Kleint, L., Motorina, G. G., Nita, G. M. and Kontar, E. P. (2021) Energy budget of plasma motions, heating, and electron acceleration in a three-loop solar flare. Astrophysical Journal, 913(2), 97. (doi: 10.3847/1538-4357/abf495)
Arnold, H. et al. (2021) Electron acceleration during macroscale Magnetic reconnection. Physical Review Letters, 126(13), 135101. (doi: 10.1103/PhysRevLett.126.135101)
Zhang, P., Wang, C. and Kontar, E. P. (2021) Parametric simulation studies on the wave propagation of solar radio emission: the source size, duration, and position. Astrophysical Journal, 909(2), 195. (doi: 10.3847/1538-4357/abd8c5)
Chen, X. , Kontar, E. P. , Chrysaphi, N. , Jeffrey, N. L.S. , Gordovskyy, M., Yan, Y. and Tan, B. (2020) Subsecond time evolution of type III solar radio burst sources at fundamental and harmonic frequencies. Astrophysical Journal, 905(1), 43. (doi: 10.3847/1538-4357/abc24e)
Gordovskyy, M., Browning, P. K., Inoue, S., Kontar, E. P. , Kusano, K. and Vekstein, G. E. (2020) Forward modeling of particle acceleration and transport in an individual solar flare. Astrophysical Journal, 902(2), 147. (doi: 10.3847/1538-4357/abb60e)
Jeffrey, N. L.S., Saint-Hilaire, P. and Kontar, E. P. (2020) Probing solar flare accelerated electron distributions with prospective X-ray polarimetry missions. Astronomy and Astrophysics, 642, A79. (doi: 10.1051/0004-6361/202038626)
Maksimovic, M. et al. (2020) The Solar Orbiter Radio and Plasma Waves (RPW) instrument. Astronomy and Astrophysics, 642, A12. (doi: 10.1051/0004-6361/201936214)
Rodríguez-Pacheco, J. et al. (2020) The Energetic Particle Detector. Energetic particle instrument suite for the Solar Orbiter mission. Astronomy and Astrophysics, 642, A7. (doi: 10.1051/0004-6361/201935287)
Zouganelis, I. et al. (2020) The Solar Orbiter Science Activity Plan. Translating solar and heliospheric physics questions into action. Astronomy and Astrophysics, 642, A3. (doi: 10.1051/0004-6361/202038445)
Kuznetsov, A. A., Chrysaphi, N. , Kontar, E. P. and Motorina, G. (2020) Radio echo in the turbulent corona and simulations of solar drift-pair radio bursts. Astrophysical Journal, 898(2), 94. (doi: 10.3847/1538-4357/aba04a)
Chrysaphi, N. , Reid, H. A.S. and Kontar, E. P. (2020) First observation of a type II solar radio burst transitioning between a stationary and drifting state. Astrophysical Journal, 893(2), 115. (doi: 10.3847/1538-4357/ab80c1)
Borissov, A., Neukirch, T., Kontar, E. P. , Threlfall, J. and Parnell, C.E. (2020) Particle acceleration with anomalous pitch angle scattering in 3D separator reconnection. Astronomy and Astrophysics, 635, A63. (doi: 10.1051/0004-6361/201936977)
Motorina, G. G., Fleishman, G. D. and Kontar, E. P. (2020) Spatiotemporal energy partitioning in a nonthermally dominated two-loop solar flare. Astrophysical Journal, 890(1), 75. (doi: 10.3847/1538-4357/ab67d1)
Krupar, V. et al. (2020) Density fluctuations in the solar wind based on type III radio bursts observed by Parker Solar Probe. Astrophysical Journal Supplement, 246(2), 57. (doi: 10.3847/1538-4365/ab65bd)
Zhang, P., Yu, S., Kontar, E. P. and Wang, C. (2019) On the source position and duration of a solar type III radio burst observed by LOFAR. Astrophysical Journal, 885(2), 140. (doi: 10.3847/1538-4357/ab458f)
Aschwanden, M. J. et al. (2019) Global energetics of solar flares and coronal mass ejections. Journal of Physics: Conference Series, 1332(1), 012002. (doi: 10.1088/1742-6596/1332/1/012002)
Kuznetsov, A.A. and Kontar, E.P. (2019) First imaging spectroscopy observations of solar drift pair bursts. Astronomy and Astrophysics, 631, L7. (doi: 10.1051/0004-6361/201936447)
Kontar, E. P. , Chen, X. , Chrysaphi, N. , Jeffrey, N. L.S. , Emslie, A. G., Krupar, V., Maksimovic, M., Gordovskyy, M. and Browning, P. K. (2019) Anisotropic radio-wave scattering and the interpretation of solar radio emission observations. Astrophysical Journal, 884(2), 122. (doi: 10.3847/1538-4357/ab40bb)
Jeffrey, N. L.S. , Kontar, E. P. and Fletcher, L. (2019) The role of energy diffusion in the deposition of energetic electron energy in solar and stellar flares. Astrophysical Journal, 880(2), 136. (doi: 10.3847/1538-4357/ab2764)
Aschwanden, M. J., Kontar, E. P. and Jeffrey, N. L.S. (2019) Global energetics of solar flares. VIII. The low-energy cutoff. Astrophysical Journal, 881(1), 1. (doi: 10.3847/1538-4357/ab2cd4)
Bradshaw, S. J., Emslie, A. G., Bian, N.H. and Kontar, E. P. (2019) Coronal loop scaling laws for various forms of parallel heat conduction. Astrophysical Journal, 880(2), 80. (doi: 10.3847/1538-4357/ab287f)
Bian, N.H., Emslie, A.G. and Kontar, E.P. (2019) A Fokker–Planck framework for studying the diffusion of radio burst waves in the solar corona. Astrophysical Journal, 873(1), 33. (doi: 10.3847/1538-4357/ab0411)
Gordovskyy, M., Kontar, E. , Browning, P. and Kuznetsov, A. (2019) Frequency–distance structure of solar radio sources observed by LOFAR. Astrophysical Journal, 873(1), 48. (doi: 10.3847/1538-4357/ab03d8)
Battaglia, M., Kontar, E. P. and Motorina, G. (2019) Electron distribution and energy release in magnetic reconnection outflow regions during the pre-impulsive phase of a solar flare. Astrophysical Journal, 872(2), 204. (doi: 10.3847/1538-4357/ab01c9)
Georgoulis, M. K. and Kontar, E. P. (2019) Preface: Solar physics advances from the interior to the heliosphere. Advances in Space Research, 63(4), pp. 1387-1388. (doi: 10.1016/j.asr.2019.01.008)
Kontar, E. P. , Jeffrey, N. L.S. and Emslie, A. G. (2019) Determination of the total accelerated electron rate and power using solar flare hard X-ray spectra. Astrophysical Journal, 871(2), 225. (doi: 10.3847/1538-4357/aafad3)
Nindos, A., Kontar, E.P. and Oberoi, D. (2019) Solar physics with the Square Kilometre Array. Advances in Space Research, 63(4), pp. 1404-1424. (doi: 10.1016/j.asr.2018.10.023)
Kontar, E.P. , Motorina, G.G., Jeffrey, N.L.S. , Tsap, Y.T., Fleishman, G.D. and Stepanov, A.V. (2018) Frequency rising sub-THz emission from solar flare ribbons. Astronomy and Astrophysics, 620, A95. (doi: 10.1051/0004-6361/201834124)
Chrysaphi, N. , Kontar, E. P. , Holman, G. D. and Temmer, M. (2018) CME-driven shock and type II solar radio burst band splitting. Astrophysical Journal, 868(2), 79. (doi: 10.3847/1538-4357/aae9e5)
Reid, H. A.S. and Kontar, E. P. (2018) Spatial expansion and speeds of type III electron beam sources in the solar corona. Astrophysical Journal, 867(2), 158. (doi: 10.3847/1538-4357/aae5d4)
Emslie, A. G., Bian, N. H. and Kontar, E. P. (2018) Energy deposition by energetic electrons in a diffusive collisional transport model. Astrophysical Journal, 862(2), 158. (doi: 10.3847/1538-4357/aaceaa)
Sharykin, I.N., Kontar, E.P. and Kuznetsov, A.A. (2018) LOFAR observations of fine spectral structure dynamics in type IIIb radio bursts. Solar Physics, 293(8), 115. (doi: 10.1007/s11207-018-1333-2)
Kolotkov, D. Y., Nakariakov, V. M. and Kontar, E. P. (2018) Origin of the modulation of the radio emission from the solar corona by a fast magnetoacoustic wave. Astrophysical Journal, 861(1), 33. (doi: 10.3847/1538-4357/aac77e)
Kontar, E. P. and Nindos, A. (2018) Combined radio and space-based solar observations: from techniques to new results – preface. Solar Physics, 293(6), 90. (doi: 10.1007/s11207-018-1309-2)
Reid, H. A.S. and Kontar, E. P. (2018) Solar type III radio burst time characteristics at LOFAR frequencies and the implications for electron beam transport. Astronomy and Astrophysics, 614, A69. (doi: 10.1051/0004-6361/201732298)
Krupar, V., Maksimovic, M., Kontar, E.P. , Zaslavsky, A., Santolik, O., Soucek, J., Kruparova, O., Eastwood, J.P. and Szabo, A. (2018) Interplanetary type III bursts and electron density fluctuations in the solar wind. Astrophysical Journal, 857(2), 82. (doi: 10.3847/1538-4357/aab60f)
Stackhouse, D. J. and Kontar, E. P. (2018) Spatially inhomogeneous acceleration of electrons in solar flares. Astronomy and Astrophysics, 612, A64. (doi: 10.1051/0004-6361/201730708)
Chen, X., Kontar, E. P. , Yu, S., Yan, Y., Huang, J. and Tan, B. (2018) Fine structures of solar radio type III bursts and their possible relationship with coronal density turbulence. Astrophysical Journal, 856(1), 73. (doi: 10.3847/1538-4357/aaa9bf)
Musset, S., Kontar, E.P. and Vilmer, N. (2018) Diffusive transport of energetic electrons in the solar corona: X-ray and radio diagnostics. Astronomy and Astrophysics, 610, A6. (doi: 10.1051/0004-6361/201731514)
Kontar, E.P. , Yu, S., Kuznetsov, A.A., Emslie, A.G., Alcock, B. , Jeffrey, N.L.S. , Melnik, V.N., Bian, N.H. and Subramanian, P. (2018) Publisher Correction: Imaging spectroscopy of solar radio burst fine structures. Nature Communications, 9, 146. (doi: 10.1038/s41467-017-02464-6) (PMID:29323123) (PMCID:PMC5765264)
Bian, N., Emslie, A. G., Horne, D. and Kontar, E. P. (2018) Heating and cooling of coronal loops with turbulent suppression of parallel heat conduction. Astrophysical Journal, 852(2), 127. (doi: 10.3847/1538-4357/aa9f29)
Zucca, P. et al. (2018) Shock location and CME 3D reconstruction of a solar type II radio burst with LOFAR. Astronomy and Astrophysics, 615, A89. (doi: 10.1051/0004-6361/201732308)
Kontar, E.P. , Yu, S., Kuznetsov, A.A., Emslie, A.G., Alcock, B. , Jeffrey, N.L.S. , Melnik, V.N., Bian, N.H. and Subramanian, P. (2017) Imaging spectroscopy of solar radio burst fine structures. Nature Communications, 8, 1515. (doi: 10.1038/s41467-017-01307-8) (PMID:29142220) (PMCID:PMC5688146)
Casadei, D., Jeffrey, N. L.S. and Kontar, E. P. (2017) Measuring X-ray anisotropy in solar flares. Prospective stereoscopic capabilities of STIX and MiSolFA. Astronomy and Astrophysics, 606, A2. (doi: 10.1051/0004-6361/201730629)
James, T., Subramanian, P. and Kontar, E. P. (2017) Small electron acceleration episodes in the solar corona. Monthly Notices of the Royal Astronomical Society, 471(1), pp. 89-99. (doi: 10.1093/mnras/stx1460)
Reid, H. A.S. and Kontar, E. P. (2017) Imaging spectroscopy of type U and J solar radio bursts with LOFAR. Astronomy and Astrophysics, 606, A141. (doi: 10.1051/0004-6361/201730701)
Borissov, A., Kontar, E.P. , Threlfall, J. and Neukirch, T. (2017) Particle acceleration with anomalous pitch angle scattering in 2D magnetohydrodynamic reconnection simulations. Astronomy and Astrophysics, 605, A73. (doi: 10.1051/0004-6361/201731183)
Lyubchyk, O., Kontar, E.P. , Voitenko, Y.M., Bian, N.H. and Melrose, D.B. (2017) Solar plasma radio emission in the presence of imbalanced turbulence of kinetic-scale Alfvén waves. Solar Physics, 292(9), 117. (doi: 10.1007/s11207-017-1140-1)
Gordovskyy, M., Browning, P. K. and Kontar, E. P. (2017) Polarisation of microwave emission from reconnecting twisted coronal loops. Astronomy and Astrophysics, 604, A116. (doi: 10.1051/0004-6361/201629334)
Kontar, E.P. , Perez, J.E., Harra, L.K., Kuznetsov, A.A., Emslie, A.G., Jeffrey, N.L.S. , Bian, N.H. and Dennis, B.R. (2017) Turbulent kinetic energy in the energy balance of a solar flare. Physical Review Letters, 118(15), 155101. (doi: 10.1103/PhysRevLett.118.155101) (PMID:28452537)
Aschwanden, M. J. et al. (2017) Global energetics of solar flares. V. energy closure in flares and coronal mass ejections. Astrophysical Journal, 836(1), p. 17. (doi: 10.3847/1538-4357/836/1/17)
Bian, N. H., Emslie, A. G. and Kontar, E. P. (2017) The role of diffusion in the transport of energetic electrons during solar flares. Astrophysical Journal, 835(2), 262. (doi: 10.3847/1538-4357/835/2/262)
Reid, H. A.S. and Kontar, E. P. (2017) Langmuir wave electric fields induced by electron beams in the heliosphere. Astronomy and Astrophysics, 598, A44. (doi: 10.1051/0004-6361/201629697)
Scullion, E., Rouppe van der Voort, L., Antolin, P., Wedemeyer, S., Vissers, G., Kontar, E.P. and Gallagher, P.T. (2016) Observing the formation of flare-driven coronal rain. Astrophysical Journal, 833(2), 184. (doi: 10.3847/1538-4357/833/2/184)
Bian, N. H., Watters, J. M., Kontar, E. P. and Emslie, A. G. (2016) Anomalous cooling of coronal loops with turbulent suppression of thermal conduction. Astrophysical Journal, 833(1), 76. (doi: 10.3847/1538-4357/833/1/76)
Aschwanden, M. J., Holman, G., O’Flannagain, A., Caspi, A., McTiernan, J. M. and Kontar, E. P. (2016) Global energetics of solar flares. III. Nonthermal energies. Astrophysical Journal, 832(1), 27. (doi: 10.3847/0004-637X/832/1/27)
Huang, J., Kontar, E. P. , Nakariakov, V. M. and Gao, G. (2016) Quasi-periodic acceleration of electrons in the flare on 2012 July 19. Astrophysical Journal, 831(2), 119. (doi: 10.3847/0004-637X/831/2/119)
Tan, B.L., Karlický, M., Mészárosová, H., Kashapova, L., Huang, J., Yan, Y. and Kontar, E.P. (2016) Diagnosing the source region of a solar burst on 26 September 2011 by using microwave type-III pairs. Solar Physics, 291(8), pp. 2407-2418. (doi: 10.1007/s11207-016-0986-y)
Fleishman, G. D., Nita, G. M., Kontar, E. P. and Gary, D. E. (2016) Narrowband gyrosynchrotron bursts: probing electron acceleration in solar flares. Astrophysical Journal, 826(1), 38. (doi: 10.3847/0004-637X/826/1/38)
Bian, N. H., Kontar, E. P. and Emslie, A. G. (2016) Suppression of parallel transport in turbulent magnetized plasmas and its impact on the non-thermal and thermal aspects of solar flares. Astrophysical Journal, 824(2), 78. (doi: 10.3847/0004-637X/824/2/78)
Gordovskyy, M., Kontar, E.P. and Browning, P.K. (2016) Plasma motions and non-thermal line broadening in flaring twisted coronal loops. Astronomy and Astrophysics, 589, A104. (doi: 10.1051/0004-6361/201527249)
Tsap, Y. T., Smirnova, V. V., Morgachev, A. S., Motorina, G. G., Kontar, E. P. , Nagnibeda, V. G. and Strekalova, P. V. (2016) On the origin of 140GHz emission from the 4 July 2012 solar flare. Advances in Space Research, 57(7), pp. 1449-1455. (doi: 10.1016/j.asr.2015.12.037)
Wedemeyer, S. et al. (2016) Solar science with the Atacama Large Millimeter/Submillimeter Array—a new view of our sun. Space Science Reviews, 200(1), pp. 1-73. (doi: 10.1007/s11214-015-0229-9)
Yoon, P.H., Ziebell, L.F., Kontar, E.P. and Schlickeiser, R. (2016) Weak turbulence theory for collisional plasmas. Physical Review E, 93(3), 033203. (doi: 10.1103/PhysRevE.93.033203) (PMID:27078471)
Tigik, S.F., Ziebell, L.F., Yoon, P.H. and Kontar, E. (2016) Two dimensional time evolution of beam-plasma instability in the presence of binary collisions. Astronomy and Astrophysics, 586, A19. (doi: 10.1051/0004-6361/201527271)
Wedemeyer, S. et al. (2015) SSALMON: The Solar Simulations for the Atacama Large Millimeter Observatory Network. Advances in Space Research, 56(12), pp. 2679-2692. (doi: 10.1016/j.asr.2015.05.027)
Battaglia, M., Motorina, G. and Kontar, E. P. (2015) Multithermal representation of the kappa-distribution of solar flare electrons and application to simultaneous X-ray and EUV observations. Astrophysical Journal, 815(1), p. 73. (doi: 10.1088/0004-637X/815/1/73)
Jeffrey, N. L. S. , Kontar, E. P. and Dennis, B. R. (2015) High-temperature differential emission measure and altitude variations in the temperature and density of solar flare coronal X-ray sources. Astronomy and Astrophysics, 584, A89. (doi: 10.1051/0004-6361/201526665)
Motorina, G. G. and Kontar, E. P. (2015) Differential emission measure and electron distribution function reconstructed from RHESSI and SDO observations. Geomagnetism and Aeronomy, 55(7), pp. 995-999. (doi: 10.1134/S0016793215070154)
Vanninathan, K., Veronig, A. M., Dissauer, K., Madjarska, M. S., Hannah, I. G. and Kontar, E. P. (2015) Coronal response to an EUV wave from DEM analysis. Astrophysical Journal, 812(2), 173. (doi: 10.1088/0004-637X/812/2/173)
Kontar, E. P. , Jeffrey, N. L. S. , Emslie, A. G. and Bian, N. H. (2015) Collisional relaxation of electrons in a warm plasma and accelerated nonthermal electron spectra in solar flares. Astrophysical Journal, 809(1), 35. (doi: 10.1088/0004-637X/809/1/35)
Krupar, V., Kontar, E. P. , Soucek, J., Santolik, O., Maksimovic, M. and Kruparova, O. (2015) On the speed and acceleration of electron beams triggering interplanetary type III radio bursts. Astronomy and Astrophysics, 580, A137. (doi: 10.1051/0004-6361/201425308)
Reid, H. A.S. and Kontar, E. P. (2015) Stopping frequency of type III solar radio bursts in expanding magnetic flux tubes. Astronomy and Astrophysics, 577, A124. (doi: 10.1051/0004-6361/201425309)
Nita, G. M., Fleishman, G. D., Kuznetsov, A. A., Kontar, E. P. and Gary, D. E. (2015) Three-dimensional radio and x-ray modeling and data analysis software: revealing flare complexity. Astrophysical Journal, 799(2), 236. (doi: 10.1088/0004-637X/799/2/236)
Kuznetsov, A.A. and Kontar, E.P. (2015) Spatially resolved energetic electron properties for the 21 May 2004 flare from radio observations and 3D simulations. Solar Physics, 290(1), pp. 79-93. (doi: 10.1007/s11207-014-0530-x)
Bian, N. H., Emslie, A. G., Stackhouse, D. J. and Kontar, E. P. (2014) The formation of kappa-distribution accelerated electron populations in solar flares. Astrophysical Journal, 796(2), 142. (doi: 10.1088/0004-637X/796/2/142)
Ratcliffe, H., Kontar, E. P. and Reid, H. A. S. (2014) Large-scale simulations of solar type III radio bursts: flux density, drift rate, duration, and bandwidth. Astronomy and Astrophysics, 572, A111. (doi: 10.1051/0004-6361/201423731)
Krupar, V., Maksimovic, M., Santolik, O., Kontar, E.P. , Cecconi, B., Hoang, S., Kruparova, O., Soucek, J., Reid, H. and Zaslavsky, A. (2014) Statistical survey of Type III radio bursts at long wavelengths observed by the Solar TErrestrial RElations Observatory (STEREO)/Waves Instruments: radio flux density variations with frequency. Solar Physics, 289(8), pp. 3121-3135. (doi: 10.1007/s11207-014-0522-x)
Reid, H. A.S. , Vilmer, N. and Kontar, E. P. (2014) The low-high-low trend of Type III radio burst starting frequencies and solar flare hard X-rays. Astronomy and Astrophysics, 567, A85. (doi: 10.1051/0004-6361/201321973)
Bian, N. H., Kontar, E. P. and Ratcliffe, H. (2014) Resonance broadening due to particle scattering and mode coupling in the quasi-linear relaxation of electron beams. Journal of Geophysical Research: Space Physics, 119(6), pp. 4239-4255. (doi: 10.1002/2013JA019664)
Jeffrey, N. L.S. , Kontar, E. P. , Bian, N. H. and Emslie, A. G. (2014) On the variation of solar flare coronal X-ray source sizes with energy. Astrophysical Journal, 787(1), 86. (doi: 10.1088/0004-637X/787/1/86)
Ratcliffe, H. and Kontar, E.P. (2014) Plasma radio emission from inhomogeneous collisional plasma of a flaring loop. Astronomy and Astrophysics, 562, A57. (doi: 10.1051/0004-6361/201322263)
Kontar, E.P. , Bian, N.H., Emslie, A.G. and Vilmer, N. (2014) Turbulent pitch-angle scattering and diffusive transport of hard x-ray-producing electrons in flaring coronal loops. Astrophysical Journal, 780(2), p. 176. (doi: 10.1088/0004-637X/780/2/176)
Gordovskyy, M., Browning, P.K., Kontar, E.P. and Bian, N.H. (2014) Particle acceleration and transport in reconnecting twisted loops in a stratified atmosphere. Astronomy and Astrophysics, 561, A72. (doi: 10.1051/0004-6361/201321715)
Skinner, G.K., Dennis, B.R., Krizmanic, J.F. and Kontar, E.P. (2014) Science enabled by high precision inertial formation flying. International Journal of Space Science and Engineering, 1(4), pp. 331-348. (doi: 10.1504/IJSPACESE.2013.059271)
Battaglia, M. and Kontar, E.P. (2013) Electron distribution functions in solar flares from combined x-ray and extreme-ultraviolet observations. Astrophysical Journal, 779(2), p. 107. (doi: 10.1088/0004-637X/779/2/107)
Harra, L.K., Matthews, S., Culhane, J.L., Cheung, M.C.M., Kontar, E.P. and Hara, H. (2013) The location of non-thermal velocity in the early phases of large flares—revealing pre-eruption flux ropes. Astrophysical Journal, 774(2), p. 122. (doi: 10.1088/0004-637X/774/2/122)
Reid, H.A.S. and Kontar, E.P. (2013) Evolution of the solar flare energetic electrons in the inhomogeneous inner heliosphere. Solar Physics, 285(1-2), pp. 217-232. (doi: 10.1007/s11207-012-0013-x)
Dickson, E.C.M. and Kontar, E.P. (2013) Measurements of electron anisotropy in solar flares using albedo with RHESSI X-ray data. Solar Physics, 284(2), pp. 405-425. (doi: 10.1007/s11207-012-0178-3)
Gordovskyy, M., Browning, P.K., Kontar, E.P. and Bian, N.H. (2013) Effect of collisions and magnetic convergence on electron acceleration and transport in reconnecting twisted solar flare loops. Solar Physics, 284(2), pp. 489-498. (doi: 10.1007/s11207-012-0124-4)
Fleishman, G.D., Kontar, E.P. , Nita, G.M. and Gary, D.E. (2013) Probing dynamics of electron acceleration with radio and x-ray spectroscopy, imaging, and timing in the 2002 april 11 solar flare. Astrophysical Journal, 768(2), p. 190. (doi: 10.1088/0004-637X/768/2/190)
Hannah, I.E. and Kontar, E.P. (2013) Multi-thermal dynamics and energetics of a coronal mass ejection in the low solar atmosphere. Astronomy and Astrophysics, 553, A10. (doi: 10.1051/0004-6361/201219727)
Bian, N.H. and Kontar, E.P. (2013) Stochastic acceleration by multi-island contraction during turbulent magnetic reconnection. Physical Review Letters, 110(15), 151101. (doi: 10.1103/PhysRevLett.110.151101) (PMID:25167241)
Jeffrey, N.L.S. and Kontar, E.P. (2013) Temporal variations of x-ray solar flare loops: length, corpulence, position, temperature, plasma pressure, and spectra. Astrophysical Journal, 766(2), Art. 75. (doi: 10.1088/0004-637X/766/2/75)
Simoes, P. J. A. and Kontar, E. P. (2013) Implications for electron acceleration and transport from non-thermal electron rates at looptop and footpoint sources in solar flares. Astronomy and Astrophysics, 551, A135. (doi: 10.1051/0004-6361/201220304)
Hannah, I.G. , Kontar, E.P. and Reid, H.A.S. (2013) Effect of turbulent density-fluctuations on wave-particle interactions and solar flare X-ray spectra. Astronomy and Astrophysics, 550, A51. (doi: 10.1051/0004-6361/201220462)
Battaglia, M. and Kontar, E.P. (2012) RHESSI and SDO/AIA observations of the chromospheric and coronal plasma parameters during a solar flare. Astrophysical Journal, 760(2), Art. 142. (doi: 10.1088/0004-637X/760/2/142)
Ratcliffe, H., Bian, N.H. and Kontar, E.P. (2012) Density fluctuations and the acceleration of electrons by beam-generated langmuir waves in the solar corona. Astrophysical Journal, 761(2), p. 176. (doi: 10.1088/0004-637X/761/2/176)
Bian, N.H., Emslie, A.G. and Kontar, E.P. (2012) A classification scheme for turbulent acceleration processes in solar flares. Astrophysical Journal, 754(2), Art. 103. (doi: 10.1088/0004-637X/754/2/103)
Karlický, M. and Kontar, E.P. (2012) Electron acceleration during three-dimensional relaxation of an electron beam-return current plasma system in a magnetic field. Astronomy and Astrophysics, 544, A148. (doi: 10.1051/0004-6361/201219400)
Guo, J., Emslie, A.G., Kontar, E.P. , Benvenuto, F., Massone, A.M. and Piana, M. (2012) Determination of the acceleration region size in a loop-structured solar flare. Astronomy and Astrophysics, 543, A53. (doi: 10.1051/0004-6361/201219341)
Battaglia, M., Kontar, E.P. , Fletcher, L. and MacKinnon, A.L. (2012) Numerical simulations of chromospheric hard X-ray source sizesin solar flares. Astrophysical Journal, 752(1), (doi: 10.1088/0004-637X/752/1/4)
Matthews, S.A. et al. (2012) Solar particle acceleration radiation and kinetics (SPARK). Experimental Astronomy, 33(2-3), pp. 237-269. (doi: 10.1007/s10686-011-9260-3)
Hannah, I.G. and Kontar, E.P. (2012) Differential emission measures from the regularized inversion of Hinode and SDO data. Astronomy and Astrophysics, 539, (doi: 10.1051/0004-6361/201117576)
Kontar, E.P. , Ratcliffe, H. and Bian, N.H. (2012) Wave-particle interactions in non-uniform plasma and the interpretation of hard X-ray spectra in solar flares. Astronomy and Astrophysics, 539, A43. (doi: 10.1051/0004-6361/201118216)
Krucker, S., Kontar, E.P. , Christe, S., Glesener, L. and Lin, R.P. (2011) Electron acceleration associated with solar jets. Astrophysical Journal, 742(2), (doi: 10.1088/0004-637X/742/2/82)
Jeffrey, N.L.S. and Kontar, E.P. (2011) Spatially resolved hard X-ray polarization in solar flares: effects of Compton scattering and bremsstrahlung. Astronomy and Astrophysics, 536, (doi: 10.1051/0004-6361/201117987)
Krucker, S., Hudson, H.S. , Jeffrey, N.L.S. , Battaglia, M., Kontar, E.P. , Benz, A.O., Csillaghy, A. and Lin, R.P. (2011) High-resolution imaging of solar flare ribbons and its implication on the thick-target beam model. Astrophysical Journal, 739(2), p. 96. (doi: 10.1088/0004-637X/739/2/96)
Battaglia, M. and Kontar, E.P. (2011) Height structure of X-ray, EUV, and white-light emission in a solar flare. Astronomy and Astrophysics, 533, (doi: 10.1051/0004-6361/201117605)
Holman, G.D., Aschwanden, M.J., Aurass, H., Battaglia, M., Grigis, P.C., Kontar, E.P. , Liu, W., Saint-Hilaire, P. and Zharkova, V.V. (2011) Implications of X-ray observations for electron acceleration and propagation in solar flares. Space Science Reviews, 159(1-4), pp. 107-166. (doi: 10.1007/s11214-010-9680-9)
Kontar, E.P. et al. (2011) Deducing electron properties from hard X-ray observations. Space Science Reviews, 159(1-4), pp. 301-355. (doi: 10.1007/s11214-011-9804-x)
Zharkova, V.V. et al. (2011) Recent advances in understanding particle acceleration processes in solar flares. Space Science Reviews, 159(1-4), pp. 357-420. (doi: 10.1007/s11214-011-9803-y)
Battaglia, M. and Kontar, E.P. (2011) Hard X-Ray footpoint sizes and positions as diagnostics of flare accelerated energetic electrons in the low solar atmosphere. Astrophysical Journal, 735(1), p. 42. (doi: 10.1088/0004-637X/735/1/42)
Inglis, A.R., Zimovets, I.V., Dennis, B.R., Kontar, E.P. , Nakariakov, V.M., Struminsky, A.B. and Tolbert, A.K. (2011) Instrumental oscillations in RHESSI count rates during solar flares. Astronomy and Astrophysics, 530, (doi: 10.1051/0004-6361/201016322)
Hannah, I.G. and Kontar, E.P. (2011) The spectral difference between solar flare HXR coronal and footpoint sources due to wave-particle interactions. Astronomy and Astrophysics, 529, (doi: 10.1051/0004-6361/201015710)
Reid, H.A.S. , Vilmer, N. and Kontar, E.P. (2011) Characteristics of the flare acceleration region derived from simultaneous hard X-ray and radio observations. Astronomy and Astrophysics, 529, (doi: 10.1051/0004-6361/201016181)
Kontar, E.P. , Hannah, I.G. and Bian, N.H. (2011) Acceleration, magnetic fluctuations, and cross-field transport of energetic electrons in a solar flare loop. Astrophysical Journal Letters, 730, (doi: 10.1088/2041-8205/730/2/L22)
Fleishman, G.D., Kontar, E.P. , Nita, G.M. and Gary, D.E. (2011) A cold, tenuous solar flare: acceleration without heating. Astrophysical Journal Letters, 731(1), (doi: 10.1088/2041-8205/731/1/L19)
Guo, J., Liu, S., Fletcher, L. and Kontar, E.P. (2011) Relationship between hard and soft X-ray emission components of a solar flare. Astrophysical Journal, 728(1), (doi: 10.1088/0004-637X/728/1/4)
Battaglia, M., Kontar, E.P. and Hannah, I.G. (2011) The influence of albedo on the size of hard X-ray flare sources. Astronomy and Astrophysics, 526, (doi: 10.1051/0004-6361/201014798)
Bian, N.H. and Kontar, E.P. (2011) Parallel electric field amplification by phase mixing of Alfven waves. Astronomy and Astrophysics, 527, (doi: 10.1051/0004-6361/201015385)
Bian, N.H., Kontar, E.P. and MacKinnon, A.L. (2011) Turbulent cross-field transport of non-thermal electrons in coronal loops: theory and observations. Astronomy and Astrophysics, 535(A18), (doi: 10.1051/0004-6361/201117574)
Reid, H.A.S. and Kontar, E.P. (2010) Solar wind density turbulence and solar flare electron transport from the Sun to the Earth. Astrophysical Journal, 721(1), pp. 864-874. (doi: 10.1088/0004-637X/721/1/864)
Kontar, E.P. , Hannah, I.G. , Jeffrey, N.L.S. and Battaglia, M. (2010) The sub-arcsecond hard x-ray structure of loop footpoints in a solar flare. Astrophysical Journal, 717(1), pp. 250-256. (doi: 10.1088/0004-637X/717/1/250)
Temmer, M., Veronig, A.N., Kontar, E.P. , Krucker, S. and Vrsnak, B. (2010) Combined stereo/Rhessi study of coronal mass ejection acceleration and particle acceleration in solar flares. Astrophysical Journal, 712(2), pp. 1410-1420. (doi: 10.1088/0004-637X/712/2/1410)
Kontar, E.P. and Jeffrey, N.L.S. (2010) Positions and sizes of X-ray solar flare sources. Astronomy and Astrophysics, 513, (doi: 10.1051/0004-6361/201014066)
Fleishman, G.D. and Kontar, E.P. (2010) Sub-THz radiation mechanisms in solar flares. Astrophysical Journal Letters, 709(2), pp. 127-132. (doi: 10.1088/2041-8205/709/2/L127)
Bian, N.H. and Kontar, E.P. (2010) A gyrofluid description of Alfvenic turbulence and its parallel electric field. Physics of Plasmas, 17(6), (doi: 10.1063/1.3439682)
Bian, N.H., Kontar, E.P. and Brown, J.C. (2010) Parallel electric field generation by Alfvén wave turbulence. Astronomy and Astrophysics, 519, (doi: 10.1051/0004-6361/201014048)
Hannah, I.G., Kontar, E.P. and Sirenko, O.K. (2009) The effect of wave-particle interactions on low-energy cutoffs in solar flare electron spectra. Astrophysical Journal Letters, 707(1), pp. 45-50. (doi: 10.1088/0004-637X/707/1/L45)
Brown, J.C., Turkmani, R., Kontar, E.P. , MacKinnon, A.L. and Vlahos, L. (2009) Local re-acceleration and a modified thick target model of solar flare electrons. Astronomy and Astrophysics, 508(2), pp. 993-1000. (doi: 10.1051/0004-6361/200913145)
Prato, M., Emslie, A.G., Kontar, E.P. , Massone, A.M. and Piana, M. (2009) The location of centroids in photon and electron maps of solar flares. Astrophysical Journal, 706(1), pp. 917-922. (doi: 10.1088/0004-637X/706/1/917)
Massone, A.M., Emslie, A.G., Hurford, G.J., Prato, M., Kontar, E.P. and Piana, M. (2009) Hard X-ray imaging of solar flares using interpolated visibilities. Astrophysical Journal, 703(2), pp. 2004-2016. (doi: 10.1088/0004-637X/703/2/2004)
Prato, M., Piana, M., Emslie, A.G., Hurford, G.J., Kontar, E.P. and Massone, A.M. (2009) A regularized visibility-based approach to astronomical imaging spectroscopy. SIAM: Journal on Imaging Sciences, 2(3), pp. 910-930. (doi: 10.1137/090746355)
Kontar, E.P. and Reid, H.A.S. (2009) Onsets and spectra of impulsive solar energetic electron events observed near the Earth. Astrophysical Journal Letters, 695(2), pp. 140-144. (doi: 10.1088/0004-637X/695/2/L140)
De Moortel, I., Browning, P.K., Bradshaw, S.J., Pintér, B. and Kontar, E.P. (2008) The way forward for coronal heating. Astronomy and Geophysics, 49(3), pp. 21-26. (doi: 10.1111/j.1468-4004.2008.49321.x)
Kontar, E.P., Dickson, E. and Kasparova, J. (2008) Low-energy cutoffs in electron spectra of solar flares: Statistical survey. Solar Physics, 252(1), pp. 139-147. (doi: 10.1007/s11207-008-9249-x)
Kontar, E.P. , Hannah, I.G. and MacKinnon, A.L. (2008) Chromospheric magnetic field and density structure measurements using hard X-rays in a flaring coronal loop. Astronomy and Astrophysics, 489(3), L57-L60. (doi: 10.1051/0004-6361:200810719)
Prato, M., Massone, A.M., Piana, M., Emslie, A.G., Hurford, G.J., Kontar, E.P. and Schwartz, R.A. (2008) A visibility-based approach using regularization for imaging-spectroscopy in solar X-ray astronomy. Journal of Physics: Conference Series, 135, (doi: 10.1088/1742-6596/135/1/012084)
Sullivan, J.M., Lockwood, M., Lanchester, B.S., Kontar, E.P. , Ivchenko, N., Dahlgren, H. and Whiter, D.K. (2008) An optical study of multiple NEIAL events driven by low energy electron precipitation. Annales Geophysicae, 26(8), pp. 2435-2447. (doi: 10.5194/angeo-26-2435-2008)
Piana, M., Massone, A.M., Hurford, G.J., Prato, M., Emslie, A.G., Kontar, E.P. and Schwartz, R.A. (2007) Electron flux spectral imaging of solar flares through regularized analysis of hard X-ray source visibilities. Astrophysical Journal, 665, pp. 846-855. (doi: 10.1086/519518)
Krucker, S., Kontar, E.P. , Christe, S. and Lin, R.P. (2007) Solar flare electron spectra at the sun and near the earth. Astrophysical Journal Letters, 663(2), L109. (doi: 10.1086/519373)
Kašparová, J., Kontar, E.P. and Brown, J.C. (2007) Hard X-ray spectra and positions of solar flares observed by RHESSI: photospheric albedo, directivity and electron spectra. Astronomy and Astrophysics, 466, pp. 705-712. (doi: 10.1051/0004-6361:20066689)
Kontar, E.P., Emslie, A.G., Massone, A.M., Piana, M., Brown, J.C. and Prato, M. (2007) Electron-electron bremsstrahlung emission and the inference of electron flux spectra in solar flares. Astrophysical Journal, 670(1), pp. 857-861. (doi: 10.1086/521977)
Kontar, E.P. and Brown, J.C. (2006) Stereoscopic electron spectroscopy of solar hard x-ray flares with a single spacecraft. Astrophysical Journal Letters, 653(2), L149-L152. (doi: 10.1086/510586)
Prato, M., Piana, M., Brown, J.C., Emslie, A.G., Kontar, E.P. and Massone, A.M. (2006) Regularized reconstruction of the differential emission measure from solar flare hard X-ray spectra. Solar Physics, 237(1), pp. 61-83. (doi: 10.1007/s11207-006-0029-1)
Brown, J.C., Emslie, G., Holman, G.D., Johns-Krull, C.M., Kontar, E.P. , Lin, R.P., Massone, A.M. and Piana, M. (2006) Evaluation of algorithms for reconstructing electron spectra from their bremsstrahlung hard X-Ray spectra. Astrophysical Journal, 643, pp. 523-531. (doi: 10.1086/501497)
Kontar, E.P. , MacKinnon, A.L. , Schwartz, R.A. and Brown, J.C. (2006) Compton backscattered and primary x-rays from solar flares: angle dependent Green's function correction for photospheric albedo. Astronomy and Astrophysics, 446, pp. 1157-1163. (doi: 10.1051/0004-6361:20053672)
Kontar, E.P. and Brown, J.C. (2006) Solar flare hard X-ray spectra possibly inconsistent with the collisional thick target model. Advances in Space Research, 38(5), pp. 945-950. (doi: 10.1016/j.asr.2005.09.029)
Kašparová, J., Karlicky, M., Kontar, E.P., Schwartz, R.A. and Dennis, B.R. (2005) Multi-wavelength analysis of high-energy electrons in solar flares: a case study of the August 20, 2002 flare. Solar Physics, 232(1-2), pp. 63-86. (doi: 10.1007/s11207-005-1581-9)
Kontar, E.P. and MacKinnon, A.L. (2005) Regularized energy-dependent solar flare hard x-Ray spectral index. Solar Physics, 227(2), pp. 299-310. (doi: 10.1007/s11207-005-1101-y)
Kontar, E.P., Emslie, A.G., Piana, M., Massone, A.M. and Brown, J.C. (2005) Determination of electron flux spectra in a solar flare with an augmented regularization method: application to RHESSI data. Solar Physics, 226(2), pp. 317-325. (doi: 10.1007/s11207-005-7150-4)
Brown, J.C. and Kontar, E.P. (2005) Problems and progress in flare fast particle diagnostics. Advances in Space Research, 35(10), pp. 1675-1682. (doi: 10.1016/j.asr.2005.03.020)
Galloway, R.K., MacKinnon, A.L. , Kontar, E.P. and Helander, P. (2005) Fast electron slowing-down and diffusion in a high temperature coronal X-ray source. Astronomy and Astrophysics, 438(3), pp. 1107-1114. (doi: 10.1051/0004-6361:20042137)
Kontar, E.P. and Pécseli, H.L. (2005) Nonlinear wave interactions as a model for naturally enhanced ion acoustic lines in the ionosphere. Geophysical Research Letters, 32(L05110), (doi: 10.1029/2004GL022182)
Kontar, E.P., Piana, M., Massone, A.M., Emslie, A.G. and Brown, J.C. (2004) Generalized regularization techniques with constraints for the analysis of solar bremsstrahlung x-ray spectra. Solar Physics, 225(2), pp. 293-309. (doi: 10.1007/s11207-004-4140-x)
Massone, A.M., Emslie, A.G., Kontar, E.P. , Piana, M., Prato, M. and Brown, J.C. (2004) Anisotropic bremsstrahlung emission and the form of regularized electron flux spectra in solar flares. Astrophysical Journal, 613(2), pp. 1233-1240. (doi: 10.1086/423127)
Brown, J.C., Emslie, A.G. and Kontar, E.P. (2003) The determination and use of mean electron flux spectra in solar flares. Astrophysical Journal, 595(2(2)), L115 -L117. (doi: 10.1086/378169)
Piana, M., Massone, A. M., Kontar, E. P. , Emslie, A. G., Brown, J. C. and Schwartz, R. A. (2003) Regularized electron flux spectra in the 2002 July 23 solar flare. Astrophysical Journal, 595(2), L127 -L130. (doi: 10.1086/378171)
Mel'Nik, V.V. and Kontar, E.P. (2003) Plasma radio emission of beam-plasma structures in the solar corona. Solar Physics, 215(2), pp. 335-341. (doi: 10.1023/A:1025689116449)
Kontar, E.P. and Mel'nik, V.N. (2003) Weakly turbulent electron cloud transport in a plasma with an external electric field. Physics of Plasmas, 10, pp. 2732-2737. (doi: 10.1063/1.1581881)
Conway, A.J., Brown, J.C., Eves, B.A.C. and Kontar, E.P. (2003) Implications of solar flare hard X-ray "knee" spectra observed by RHESSI. Astronomy and Astrophysics, 407(2), pp. 725-734. (doi: 10.1051/0004-6361:20030897)
Emslie, A.G., Kontar, E.P., Krucker, S. and Lin, R.P. (2003) RHESSI hard x-ray imaging spectroscopy of the large gamma-ray flare of 2002 July 23. Astrophysical Journal Letters, 595(2), L107-L110. (doi: 10.1086/378931)
Kontar, E.P., Brown, J.C., Emslie, A.G., Schwartz, R.A., Smith, D.M. and Alexander, R.C. (2003) An explanation for non-power-law behavior in the hard X-ray spectrum of the 2002 July 23 solar flare. Astrophysical Journal, 595(2), L123 -L126.
Pozhar, L.A., Kontar, E.P. and Hu, M.Z. (2002) Transport properties of nanosystems: viscosity of nanofluids confined in slit nanopores. Journal of Nanoscience and Nanotechnology, 2(2), pp. 209-227. (doi: 10.1166/jnn.2002.088)
Aschwanden, M.J., Brown, J.C. and Kontar, E.P. (2002) Chromospheric height and density measurements in a solar flare observed with RHESSI - II - Data analysis. Solar Physics, 210(1-2), 383 -405. (doi: 10.1023/A:1022472319619)
Brown, J.C., Aschwanden, M.J. and Kontar, E.P. (2002) Chromospheric height and density measurements in a solar flare observed with RHESSI - I - Theory. Solar Physics, 210(1-2), 373 -381. (doi: 10.1023/A:1022469402781)
Kontar, E. (2002) Quantitative evaluation of massive sulfide ore formation. Geology of Ore Deposits, 44(6), pp. 474-485.
Kontar, E.P. (2002) Nonlinear development of electron-beam-driven weak turbulence in an inhomogeneous plasma. Physical Review E, 65(6), (doi: 10.1103/PhysRevE.65.066408)
Kontar, E.P. , Brown, J.C. and McArthur, G.K. (2002) Nonuniform target ionization and fitting thick target electron injection spectra to RHESSI data. Solar Physics, 210(1-2), 419 -429. (doi: 10.1023/A:1022494318540)
Kontar, E.P. , Mel'nik, V.N. and Lapshin, V.I. (2001) Dynamics of a fast Maxwellian electron cloud in coronal plasma. Radio Science, 36(6), pp. 1757-1764. (doi: 10.1029/2000RS002453)
Kontar, E.P. (2001) Numerical consideration of quasilinear electron cloud dynamics in plasma. Computer Physics Communications, 138(3), pp. 222-233. (doi: 10.1016/S0010-4655(01)00214-4)
Kontar, E. (2001) Propagation of a fast electron cloud in a solar-like plasma of decreasing density. Plasma Physics and Controlled Fusion, 43(4), pp. 589-601.
Kontar, E.P. (2001) Dynamics of electron beams in the inhomogeneous solar corona plasma. Solar Physics, 202(1), pp. 131-149. (doi: 10.1023/A:1011894830942)
Kontar, E.P. (2001) Dynamics of electron beams in the solar corona plasma with density fluctuations. Astronomy and Astrophysics, 375, pp. 629-637. (doi: 10.1051/0004-6361:20010807)
Mel'nik, V.N., Kontar, E.P. and Lapshin, V.I. (2000) Propagation of a Maxwellian electron cloud in a plasma. Solar Physics, 196(1), pp. 199-212. (doi: 10.1023/A:1005282324985)
Mel'nik, V.N. and Kontar, E.P. (2000) To gasdynamic description of a hot electron cloud in a cold plasma. New Astronomy, 5(1), pp. 35-42. (doi: 10.1016/S1384-1076(00)00004-X)
Mel'nik, V.N. and Kontar, E.P. (1999) The spread of the hot electron cloud in the solar corona. New Astronomy, 4(1), pp. 41-44. (doi: 10.1016/S1384-1076(98)00044-X)
Mel'nik, V.N., Lapshin, V. and Kontar, E.P. (1999) Propagation of a monoenergetic electron beam in the solar corona. Solar Physics, 184(2), pp. 353-362. (doi: 10.1023/A:1005191910544)
Kontar, E.P. , Lapshin, V.I. and Mel'Nik, V.N. (1998) Numerical and analytical study of the propagation of a monoenergetic electron beam in a plasma. Plasma Physics Reports, 24, pp. 772-776.
Mel'Nik, V.N. and Kontar, E.P. (1998) Gasdynamic description of electron-beam flying-off in a plasma. Journal of Plasma Physics, 60(1), pp. 49-64. (doi: 10.1017/S0022377898006539)
Mel’nik, V.N. and Kontar, E.P. (1998) Beam-plasma structures at propagation of electron beams in plasma. Physica Scripta, 58(5), pp. 510-517. (doi: 10.1088/0031-8949/58/5/015)
Book Sections
Brown, J.C., Kontar, E.P. and Veronig, A.M. (2007) RHESSI results - time for a rethink? In: Klein, K.L. and MacKinnon, A.L. (eds.) The High Energy Solar Corona: Waves, Eruptions, Particles. Series: Lecture Notes in Physics, 725. Springer, pp. 65-80. ISBN 9783540715696 (doi: 10.1007/978-3-540-71570-2_4)
Research Reports or Papers
Christe, S. et al. (2017) Exploring impulsive solar magnetic energy release and particle acceleration with focused hard X-ray imaging spectroscopy. Technical Report. Next Generation Solar Physics Mission. (doi: 10.48550/arXiv.1701.00792).
Conference Proceedings
Jeffrey, N. L. S. , Kontar, E. P. , Emslie, A. G. and Bian, N. H. (2015) The collisional relaxation of electrons in hot flaring plasma and inferring the properties of solar flare accelerated electrons from X-ray observations. In: 14th Annual International Astrophysics Conference: Linear and Nonlinear Particle Energization throughout the Heliosphere and Beyond, Tampa, FL, USA, 20-24 Apr 2015, (doi: 10.1088/1742-6596/642/1/012013)
Nakariakov, V. M., Bisi, M. M., Browning, P. K., Maia, D., Kontar, E. P. , Oberoi, D., Gallagher, P. T., Cairns, I. H. and Ratcliffe, H. (2015) Solar and Heliospheric Physics with the Square Kilometre Array. In: Advancing Astrophysics with the Square Kilometre Array (AASKA14), Giardini Naxos, Italy, 9-13 June 2014, p. 169.
Teaching
Tutorials and Supervisions
- Honours Astronomy Supervisions (S1) A345
- Astronomy 2: Supervisions (S1) ASTRO2001
- Astronomy 2: Supervisions (S2) ASTRO2001
Lectures
- The Sun's Atmosphere (3 hours) ASTRO5010
- Exploring Planetary Systems II (B) ASTRO4007
- Pulsars and Supernovae I (B) ASTRO5002
Additional information
Administration
School
- A3/4/5 Class Head
- Advisor
- Astronomy Exam Committee Member
- Graduate School Deputy Chair
- Learning and Teaching Committee member
- Research and Strategy Committee member
- UG Staff: Student Committee I (member)
