Sakai Shotaro

Affiliation and department：
Job title： Assistant Professor
Other affiliations (1)：

Tohoku University The International Joint Graduate Program in Earth and Environmental Sciences (GP-EES)

Homepage URL (1)： https://sites.google.com/view/shotaro-sakai

Research field (1)： Space and planetary science

Research keywords (6)： Mars , Planetary Physics , Planetary Science , Space Physics , Planetary Aeronomy , Exoplanets

Research theme for competitive and other funds (4)：

2022 - 2027 New isotope observations of Mars atmospheric evolution: International collaboration of European and Japanese Mars exploration missions
2022 - 2025 Influence of stellar spectra on the evolution of planetary atmospheres
2018 - The distribution of electron temperature in the dayside ionosphere of Mars observed by MAVEN
2012 - 2014 Dust-plasma interaction in the Saturn's inner magnetosphere

Papers (35)：

Rikuto Yasuda, Tomoki Kimura, Hiroaki Misawa, Fuminori Tsuchiya, Baptiste Cecconi, Yasumasa Kasaba, Shinnosuke Satoh, Shotaro Sakai, Corentin K. Louis. Ray Tracing for Jupiter's Icy Moon Ionospheric Occultation of Jovian Auroral Radio Sources. Journal of Geophysical Research: Space Physics. 2024. 129. 6. e2024JA032454
Yo Kawamura, Tatsuya Yoshida, Naoki Terada, Yuki Nakamura, Shungo Koyama, Hiroki Karyu, Kaori Terada, Shotaro Sakai. Reduced Water Loss due to Photochemistry on Terrestrial Planets in the Runaway Greenhouse Phase around Pre-main-sequence M Dwarfs. The Astrophysical Journal. 2024. 967. 2. 95-95
R. Sakata, K. Seki, N. Terada, S. Sakai, H. Shinagawa. Effects of an Intrinsic Magnetic Field on Ion Escape From Ancient Mars Based on MAESTRO Multifluid MHD Simulations. Journal of Geophysical Research: Space Physics. 2024. 129. e2023JA032320
Takuya Hara, Kei Masunaga, Naoki Terada, Shotaro Sakai, Taiga Osanai, Kanako Seki, Christopher M. Fowler, Kathleen Gwen Hanley, James P. McFadden, Shannon M. Curry. On the Periodic Variation of the Ion Density in the Martian Dayside Ionosphere During the Regional Dust Storm in September 2016. Journal of Geophysical Research: Space Physics. 2024. 129. 4. e2023JA031848
Yuki Nakamura, François Leblanc, Naoki Terada, Sayano Hiruba, Isao Murata, Hiromu Nakagawa, Shotaro Sakai, Shohei Aoki, Arianna Piccialli, Yannick Willame, et al. Numerical Prediction of Changes in Atmospheric Chemical Compositions During a Solar Energetic Particle Event on Mars. Journal of Geophysical Research: Space Physics. 2023. 128. e2022JA031250

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MISC (2)：

Rikuto Yasuda, Tomoki Kimura, Baptiste Cecconi, Hiroaki Misawa, Fuminori Tsuchiya, Yasumasa Kasaba, Shinnosuke Satoh, Shotaro Sakai, Corentin Louis. Ray tracing for Jupiter’s icy moon ionospheric occultation of Jovian auroral radio sources. Abstract EGU 2024. 2024
Fuminori Tsuchiya, Yasumasa Kasaba, Ichiro Yoshikawa, Go Murakami, Atsushi Yamazaki, Kazuo Yoshioka, Tomoki Kimura, Chihiro Tao, Ryoichi Koga, Hajime Kita, et al. Major results from the Hisaki mission and future perspectives. Abstract EGU 2023. 2023

Lectures and oral presentations (306)：

The LAPYUTA Mission: Life-environmentology, Astronomy, and Planetary Ultraviolet Telescope Assembly
(Asia Oceania Geosciences Society 2024 21st Annual Meeting 2024)
Numerical simulation of the Martian diffuse aurora
(Asia Oceania Geosciences Society 2024 21st Annual Meeting 2024)
Overview of the LAPYUTA mission (Life-environmentology, Astronomy, and PlanetarY Ultraviolet Telescope Assembly)
(SPIE Astronomical Telescopes + Instrumentation 2024)
C II emission processes on Mars revealed by the MAVEN IUVS observations and feasibility study of C II observations by LAPYUTA
(Japan Geoscience Union Meeting 2024 2024)
Non-thermal escape of expanded hydrogen atmosphere on ancient Earth modeled by 3D multi-ion component magnetohydrodynamic simulation
(Japan Geoscience Union Meeting 2024 2024)

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Education (3)：

2011 - 2014 Hokkaido University, Ph.D course Graduate School of Science Department of Cosmosciences
2009 - 2011 Hokkaido University, Master course Graduate School of Science Department of Cosmosciences
2005 - 2009 Hokkaido University School of Science Department of Earth Sciences

Professional career (1)：

Ph.D (Hokkaido University)

Work history (8)：

2020/04 - 現在 Tohoku University Graduate School of Science Assistant Professor
2016/10 - 2020/03 University of Tokyo Graduate School of Sciecne Project Researcher
2018/09 - 2020/01 Taisho University
2017/06 - 2019/08 Musashino University Faculty of Engineering, Department of Environmental Systems Sciences
2014/06 - 2016/09 University of Kansas Department of Physics and Astronomy Postdoctoral Researcher

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Committee career (1)：

2021/04 - 2023/03 SGEPSS Young Outreach Activity STEPLE Representative

Awards (5)：

2023/09 - Society of Geomagnetism and Earth, Planetary and Space Sciences Obayashi Early Career Scientist Award Studies on the roles of planetary intrinsic magnetic fields and solar wind magnetic fields in atmospheric escape from planets
2018/08 - NASA NASA Group Achievement Award
2016/06 - NASA NASA Group Achievement Award
2016/03 - NASA NASA RHG Exceptional Achievement for Science
2010/11 - SGEPSS Student Presentation Award (Aurora Medal) A dust-plasma interaction in Saturn's E ring

Association Membership(s) (4)：

Society of Geomagnetism and Earth, Planetary and Space Science , Japan Geoscience Union , American Geophysical Union , The Japanese Society for Planetary Sciences

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