2013

Simoes, P.J.A., and Kontar, E.P. (2013) Implications for electron acceleration and transport from non-thermal electron rates at loop-top and foot-point sources in solar flares. Astronomy and Astrophysics . ISSN 0004-6361 (In Press)

2012

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). ISSN 0004-637X (doi:10.1088/0004-637X/752/1/4)

Hannah, I.G., and Kontar, E.P. (2012) Differential emission measures from the regularized inversion of Hinode and SDO data. Astronomy and Astrophysics, 539 . ISSN 0004-6361 (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. ISSN 0004-6361 (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). ISSN 0004-637X (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 . ISSN 0004-6361 (doi:10.1051/0004-6361/201117987)

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 . ISSN 0004-6361 (doi:10.1051/0004-6361/201117574)

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 . ISSN 0004-6361 (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. ISSN 0038-6308 (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. ISSN 0038-6308 (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. ISSN 0038-6308 (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. ISSN 0004-637X (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 . ISSN 0004-6361 (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 . ISSN 0004-6361 (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 . ISSN 0004-6361 (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 . ISSN 2041-8205 (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). ISSN 2041-8205 (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). ISSN 0004-637X (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 . ISSN 0004-6361 (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 . ISSN 0004-6361 (doi:10.1051/0004-6361/201015385)

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. ISSN 0004-637X (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. ISSN 0004-637X (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. ISSN 0004-637X (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 . ISSN 0004-6361 (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. ISSN 2041-8205 (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). ISSN 1070-664X (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 . ISSN 0004-6361 (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. ISSN 0004-637X (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. ISSN 0004-6361 (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. ISSN 0004-637X (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. ISSN 0004-637X (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. ISSN 1936-4954 (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. ISSN 0004-637X (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. ISSN 1366-8781 (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. ISSN 0038-0938 (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. ISSN 0004-6361 (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 . ISSN 1742-6596 (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. ISSN 0992-7689 (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. ISSN 0004-637X (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). ISSN 0004-637X (doi:10.1086/519373)

Brown, J.C., Kontar, E.P., and Veronig, A.M. (2007) RHESSI results - time for a rethink? Lecture Notes in Physics, 725 . pp. 65-80. ISSN 1616-6361 (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. ISSN 0004-6361 (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. ISSN 0004-637X (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. ISSN 0004-637X (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. ISSN 0038-0938 (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. ISSN 0004-637X (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. ISSN 0004-6361 (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. ISSN 02731177 (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. ISSN 1573-093X (doi:10.1007/s11207-005-1581-9)

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 . pp. 1107-1114. ISSN 0004-6361 (doi:10.1051/0004-6361:20042137)

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. ISSN 0038-0938 (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. ISSN 0038-0938 (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. ISSN 0273-1177 (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. ISSN 0004-6361 (doi:10.1051/0004-6361:20042137)

Kasparova, 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 . pp. 63-86. ISSN 0038-0938 (doi:10.1007/s11207-005-1581-9)

Kontar, E.P., and Brown, J.C. (2005) Solar flare hard X-ray spectra possibly inconsistent with the collisional thick target model. Advances in Space Research, 38 (5). pp. 945-950. ISSN 0273-1177 (doi:10.1016/j.asr.2005.09.029 )

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). ISSN 0094-8276 (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. ISSN 1573-093X (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. ISSN 0004-637X

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. ISSN 0004-637X (doi:10.1086/378169)

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. ISSN 1573-093X (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. ISSN 1070-664X (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. ISSN 0004-6361 (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 . L107-L110. ISSN 0004-637X (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. ISSN 0004-637X

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. ISSN 0004-637X

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. ISSN 1533-4880

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. ISSN 0038-0938 (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. ISSN 0038-0938 (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). ISSN 1539-3755 (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. ISSN 0038-0938 (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. ISSN 0048-6604 (doi:10.1029/2000RS002453 )

Kontar, E (2001) Dynamics of electron beams in the inhomogeneous solar corona plasma. Solar Physics, 202 (1). pp. 131-149.

Kontar, E (2001) Numerical consideration of quasilinear electron cloud dynamics in plasma. Computer Physics Communications, 138 (3). pp. 222-233.

Kontar, E (2001) Optical properties of the water column along the continental margin of the North Eastern Black Sea. Journal of Marine Systems, 31 (01-Mar). pp. 35-44.

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 solar corona plasma with density fluctuations. Astronomy and Astrophysics, 375 . pp. 629-637. ISSN 0004-6361 (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. ISSN 00380938 (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. ISSN 13841076 (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. ISSN 13841076 (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. ISSN 00380938 (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. ISSN 1063-780X

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. ISSN 0031-8949 (doi:10.1088/0031-8949/58/5/015)