First-authored, refereed papers of Mitsuo Oka, ordered by citations

A list of first-authored, refereed publications of Mitsuo Oka, derived from the SAO/NASA Astrophysics Data System (ADS) and ordered by the numbers of citations. Publications above the horizontal line count towards the h-index.

Orcid ID: 0000-0003-2191-1025

250	Electron Acceleration by Multi-Island Coalescence Oka, M., Phan, T. -D., Krucker, S., Fujimoto, M. & Shinohara, I., 2010, ApJ, 714, 915
97	Kappa Distribution Model for Hard X-Ray Coronal Sources of Solar Flares Oka, M., Ishikawa, S., Saint-Hilaire, P., Krucker, S. & Lin, R. P., 2013, ApJ, 764, 6
75	Electron Energy Partition in the Above-the-looptop Solar Hard X-Ray Sources Oka, Mitsuo, Krucker, Säm, Hudson, Hugh S. & Saint-Hilaire, Pascal, 2015, ApJ, 799, 129
72	Electron Power-Law Spectra in Solar and Space Plasmas Oka, M., Birn, J., Battaglia, M., Chaston, C. C., Hatch, S. M., Livadiotis, G., Imada, S., Miyoshi, Y., Kuhar, M., Effenberger, F., Eriksson, E., Khotyaintsev, Y. V. & Retinò, A., 2018, Space Science Reviews, 214, 82
72	“Island surfing” mechanism of electron acceleration during magnetic reconnection Oka, M., Fujimoto, M., Shinohara, I. & Phan, T. D., 2010, Journal of Geophysical Research (Space Physics), 115, A08223
66	Whistler critical Mach number and electron acceleration at the bow shock: Geotail observation Oka, M., Terasawa, T., Seki, Y., Fujimoto, M., Kasaba, Y., Kojima, H., Shinohara, I., Matsui, H., Matsumoto, H., Saito, Y. & Mukai, T., 2006, Geophysical Research Letters, 33, L24104
58	Electron Scattering by High-frequency Whistler Waves at Earth’s Bow Shock Oka, M., Wilson, L. B., III, Phan, T. D., Hull, A. J., Amano, T., Hoshino, M., Argall, M. R., Le Contel, O., Agapitov, O., Gershman, D. J., Khotyaintsev, Y. V., Burch, J. L., Torbert, R. B., Pollock, C., Dorelli, J. C., Giles, B. L., Moore, T. E., Saito, Y., Avanov, L. A., Paterson, W., Ergun, R. E., Strangeway, R. J., Russell, C. T. & Lindqvist, P. A., 2017, ApJ, 842, L11
34	Electron Scattering by Low-frequency Whistler Waves at Earth’s Bow Shock Oka, M., Otsuka, F., Matsukiyo, S., Wilson, L. B., III, Argall, M. R., Amano, T., Phan, T. D., Hoshino, M., Le Contel, O., Gershman, D. J., Burch, J. L., Torbert, R. B., Dorelli, J. C., Giles, B. L., Ergun, R. E., Russell, C. T. & Lindqvist, P. A., 2019, ApJ, 886, 53
34	Magnetic Reconnection by a Self-Retreating X Line Oka, M., Fujimoto, M., Nakamura, T. K. M., Shinohara, I. & Nishikawa, K. -I., 2008, Physical Review Letters, 101, 205004
33	Field-aligned beam observations at the quasi-perpendicular bow shock: Generation and shock angle dependence Oka, M., Terasawa, T., Saito, Y. & Mukai, T., 2005, Journal of Geophysical Research (Space Physics), 110, A05101
29	Magnetic reconnection X-line retreat associated with dipolarization of the Earth's magnetosphere Oka, M., Phan, T. -D., Eastwood, J. P., Angelopoulos, V., Murphy, N. A., Øieroset, M., Miyashita, Y., Fujimoto, M., McFadden, J. & Larson, D., 2011, Geophysical Research Letters, 38, L20105
23	`Torus' distribution of interstellar helium pickup ions: Direct observation Oka, M., Terasawa, T., Noda, H., Saito, Y. & Mukai, T., 2002, Geophysical Research Letters, 29, 1612
22	In situ evidence of electron energization in the electron diffusion region of magnetotail reconnection Oka, M., Phan, T. -D., Øieroset, M. & Angelopoulos, V., 2016, Journal of Geophysical Research (Space Physics), 121, 1955
20	Electron energization and thermal to non- thermal energy partition during earth's magnetotail reconnection Oka, Mitsuo, Phan, Tai, Øieroset, Marit, Turner, Drew, Drake, James, Li, Xiaocan, Fuselier, Stephen, Gershman, Daniel, Giles, Barbara, Ergun, Robert, Torbert, Roy, Wei, Hanying, Strangeway, Robert, Russell, Christopher & Burch, James, 2022, Physics of Plasmas, 29, 052904
19	Particle Acceleration by Magnetic Reconnection in Geospace Oka, Mitsuo, Birn, Joachim, Egedal, Jan, Guo, Fan, Ergun, Robert E., Turner, Drew L., Khotyaintsev, Yuri, Hwang, Kyoung-Joo, Cohen, Ian J. & Drake, James F., 2023, Space Science Reviews, 219, 75
13	Acceleration of interstellar helium pickup ions at the Earth's bow shock: GEOTAIL observation Oka, M., Terasawa, T., Noda, H., Saito, Y. & Mukai, T., 2002, Geophysical Research Letters, 29, 1688
9	Non-thermal electrons at the Earth's bow shock: A 'gradual' event Oka, M., Terasawa, T., Fujimoto, M., Matsui, H., Kasaba, Y., Saito, Y., Kojima, H., Matsumoto, H. & Mukai, T., 2009, Earth, Planets and Space, 61, 603
3	Maximum Energy of Particles in Plasmas Oka, Mitsuo, Makishima, Kazuo & Terasawa, Toshio, 2025, ApJ, 979, 161
3	Unusual enhancement of 30 MeV proton flux in an ICME sheath region Oka, Mitsuo, Obara, Takahiro, Nitta, Nariaki V., Yashiro, Seiji, Shiota, Daikou & Ichimoto, Kiyoshi, 2021, Earth, Planets and Space, 73, 31