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Kei Masunaga
Kei Masunaga
Institute of Arts and Sciences, Yamagata University
Verified email at cc.yamagata-u.ac.jp
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Year
Inner heliosphere MHD modeling system applicable to space weather forecasting for the other planets
D Shiota, R Kataoka, Y Miyoshi, T Hara, C Tao, K Masunaga, Y Futaana, ...
Space Weather 12 (4), 187-204, 2014
872014
The Mars crustal magnetic field control of plasma boundary locations and atmospheric loss: MHD prediction and comparison with MAVEN
X Fang, Y Ma, K Masunaga, Y Dong, D Brain, J Halekas, R Lillis, ...
Journal of Geophysical Research: Space Physics 122 (4), 4117-4137, 2017
662017
Statistical study of relations between the induced magnetosphere, ion composition, and pressure balance boundaries around Mars based on MAVEN observations
K Matsunaga, K Seki, DA Brain, T Hara, K Masunaga, JP Mcfadden, ...
Journal of Geophysical Research: Space Physics 122 (9), 9723-9737, 2017
402017
The Venusian atmospheric oxygen ion escape: Extrapolation to the early solar system
M Persson, Y Futaana, R Ramstad, K Masunaga, H Nilsson, M Hamrin, ...
Journal of Geophysical Research: Planets 125 (3), e2019JE006336, 2020
322020
O+ outflow channels around Venus controlled by directions of the interplanetary magnetic field: Observations of high energy O+ ions around the terminator
K Masunaga, Y Futaana, M Yamauchi, S Barabash, TL Zhang, ...
Journal of Geophysical Research: Space Physics 116 (A9), 2011
272011
Effects of the solar wind and the solar EUV flux on O+ escape rates from Venus
K Masunaga, Y Futaana, M Persson, S Barabash, TL Zhang, ZJ Rong, ...
Icarus 321, 379-387, 2019
212019
The extension of ionospheric holes into the tail of Venus
GA Collinson, A Fedorov, Y Futaana, K Masunaga, R Hartle, G Stenberg, ...
Journal of Geophysical Research: Space Physics 119 (8), 6940-6953, 2014
212014
Dependence of O+ escape rate from the Venusian upper atmosphere on IMF directions
K Masunaga, Y Futaana, G Stenberg, S Barabash, TL Zhang, A Fedorov, ...
Geophysical Research Letters 40 (9), 1682-1685, 2013
202013
Flow pattern of accelerated cometary ions inside and outside the diamagnetic cavity of comet 67P/Churyumov-Gerasimenko
K Masunaga, H Nilsson, E Behar, GS Wieser, M Wieser, C Goetz
Astronomy & Astrophysics 630, A43, 2019
172019
O+ ion beams reflected below the Martian bow shock: MAVEN observations
K Masunaga, K Seki, DA Brain, X Fang, Y Dong, BM Jakosky, ...
Journal of Geophysical Research: Space Physics 121 (4), 3093-3107, 2016
172016
Periodic variations of oxygen EUV dayglow in the upper atmosphere of Venus: Hisaki/EXCEED observations
K Masunaga, K Seki, N Terada, F Tsuchiya, T Kimura, K Yoshioka, ...
Journal of Geophysical Research: Planets 120 (12), 2037-2052, 2015
162015
Statistical analysis of the reflection of incident O+ pickup ions at Mars: MAVEN observations
K Masunaga, K Seki, DA Brain, X Fang, Y Dong, BM Jakosky, ...
Journal of Geophysical Research: Space Physics 122 (4), 4089-4101, 2017
142017
Seasonal and dust‐related variations in the dayside thermospheric and ionospheric compositions of Mars observed by MAVEN/NGIMS
N Yoshida, N Terada, H Nakagawa, DA Brain, S Sakai, Y Nakamura, ...
Journal of Geophysical Research: Planets 126 (11), e2021JE006926, 2021
112021
Flow directions of low-energy ions in and around the diamagnetic cavity of comet 67P
S Bergman, G Stenberg Wieser, M Wieser, H Nilsson, E Vigren, A Beth, ...
Monthly Notices of the Royal Astronomical Society 507 (4), 4900-4913, 2021
82021
Martian oxygen and hydrogen upper atmospheres responding to solar and dust storm drivers: Hisaki space telescope observations
K Masunaga, K Yoshioka, MS Chaffin, J Deighan, SK Jain, NM Schneider, ...
Journal of Geophysical Research: Planets 125 (12), e2020JE006500, 2020
82020
Dawn-dusk difference of periodic oxygen EUV dayglow variations at Venus observed by Hisaki
K Masunaga, K Seki, N Terada, F Tsuchiya, T Kimura, K Yoshioka, ...
Icarus 292, 102-110, 2017
82017
Global Venus‐Solar Wind Coupling and Oxygen Ion Escape
M Persson, Y Futaana, R Ramstad, A Schillings, K Masunaga, H Nilsson, ...
Geophysical Research Letters 48 (3), e2020GL091213, 2021
62021
Plasma density and magnetic field fluctuations in the ion gyro‐frequency range near the diamagnetic cavity of comet 67P
E Odelstad, AI Eriksson, M André, DB Graham, T Karlsson, A Vaivads, ...
Journal of Geophysical Research: Space Physics 125 (12), e2020JA028592, 2020
62020
BepiColombo mission confirms stagnation region of Venus and reveals its large extent
M Persson, S Aizawa, N André, S Barabash, Y Saito, Y Harada, D Heyner, ...
Nature Communications 13 (1), 7743, 2022
42022
Reflectivity of Venus’s dayside disk during the 2020 observation campaign: outcomes and future perspectives
YJ Lee, AG Muñoz, A Yamazaki, E Quémerais, S Mottola, S Hellmich, ...
The Planetary Science Journal 3 (9), 209, 2022
42022
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