Sakai Shotaro 堺正太朗

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堺正太朗サカイショウタロウ

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Researcher Number	30801336
Other IDs	https://orcid.org/0000-0001-9135-2076
Affiliation (Current)	2024: 東北大学, 理学研究科, 助教
Affiliation (based on the past Project Information) *help	2022: 東北大学, 理学研究科, 助教
Review Section/Research Field	Principal Investigator Basic Section 17010:Space and planetary sciences-related Except Principal Investigator Medium-sized Section 17:Earth and planetary science and related fields
Keywords	Principal Investigator 大気進化 / 恒星スペクトル / 大気散逸 / XUVスペクトル / 火星 / 系外惑星 Except Principal Investigator 観測 / 大気進化 / 大気 / 水 / 進化 / 同位体 / 火星

Influence of stellar spectra on the evolution of planetary atmospheresPrincipal Investigator
- Principal Investigator
  
  堺正太朗
- Project Period (FY)
  2022 – 2024
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Review Section
  
  Basic Section 17010:Space and planetary sciences-related
- Research Institution
  Tohoku University
New isotope obervations of Mars atmsopheric evolution: International collaboration of European and Japanese Mars exploration missions
- Principal Investigator
  
  中川広務
- Project Period (FY)
  2022 – 2026
- Research Category
  
  Fund for the Promotion of Joint International Research (Fostering Joint International Research (B))
- Review Section
  
  Medium-sized Section 17:Earth and planetary science and related fields
- Research Institution
  Tohoku University

All 2023 2022

All Journal Article Presentation

[Journal Article] Strong Depletion of 13C in CO Induced by Photolysis of CO2 in the Martian Atmosphere, Calculated by a Photochemical Model?2023
- Author(s)
  Yoshida, T., Aoki, S., Ueno, Y., Terada, N., Nakamura, Y., Shiobara, K., Yoshida, N., Nakagawa, H., Sakai, S., & Koyama, S.
- Journal Title
  
  The Planetary Science Journal
  
  Volume: 4 Issue: 3 Pages: 53-53
- DOI
  10.3847/psj/acc030
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-22K03695, KAKENHI-PROJECT-22KK0044, KAKENHI-ORGANIZER-22H05149, KAKENHI-PLANNED-22H05151, KAKENHI-PROJECT-22H00164, KAKENHI-PROJECT-22KJ0314, KAKENHI-PROJECT-23K22561
[Journal Article] Enhanced ion escape rate during IMF rotation under weak intrinsic magnetic field conditions on a Mars-like planet2023
- Author(s)
  Sakai, S., Seki, K., Terada, N., Shinagawa, H., Sakata, R., Tanaka, T., & Ebihara, Y.
- Journal Title
  
  Journal of Geophysical Research: Space Physics
  
  Volume: 128 Issue: 3 Pages: 1-10
- DOI
  10.1029/2022ja030510
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-22K03695, KAKENHI-PROJECT-18KK0093, KAKENHI-PROJECT-22KK0044, KAKENHI-PROJECT-22H00164
[Journal Article] Multispecies MHD study of ion escape at ancient Mars: Effects of an intrinsic magnetic field and solar XUV radiation2022
- Author(s)
  Sakata, R., Seki, K., Sakai, S., Terada, N., Shinagawa, H., & Tanaka, T.
- Journal Title
  
  Journal of Geophysical Research: Space Physics
  
  Volume: 127 Issue: 7
- DOI
  10.1029/2022ja030427
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-22K03695, KAKENHI-PROJECT-18KK0093, KAKENHI-PROJECT-22H00164, KAKENHI-PROJECT-21J11483
[Presentation] 火星大気散逸研究の現状と展望2023
- Author(s)
  堺正太朗
- Organizer
  第24回惑星圏研究会
- Invited
- Data Source
  KAKENHI-PROJECT-22K03695
[Presentation] LAPYUTA ワーキンググループ, 惑星科学、生命圏科学、および天文学に向けた紫外線宇宙望遠鏡計画 (LAPYUTA) の検討状況2023
- Author(s)
  土屋史紀, 村上豪, 山崎敦, 木村智樹, 吉岡和夫, 鍵谷将人, 古賀亮一, 木村淳, 成田憲保, 亀田真吾, 生駒大洋, 大内正己, 田中雅臣, 益永圭, 堺正太朗, 垰千尋, 桑原正輝, 鳥海森
- Organizer
  第24回惑星圏研究会
- Data Source
  KAKENHI-PROJECT-22K03695
[Presentation] Study of atmospheric ion escape from exoplanet TOI-700 d2023
- Author(s)
  西岡知輝, 関華奈子, 坂田遼弥, 山本和弘, 堺正太朗, 寺田直樹, 品川裕之, 中山陽史
- Organizer
  第24回惑星圏研究会
- Data Source
  KAKENHI-PROJECT-22K03695
[Presentation] Internal collaboration of European and Japanese Mars exploration missions2023
- Author(s)
  Hiromu Nakagawa, Tatsuya Yoshida, Shotaro Sakai, Shohei Aoki, Ann Carine Vandaele, Thomas Ian, Erwin Justin, Daerden Frank, Kimie Shiobara, Nao Yoshida, Naoki Terada, Yasumasa Kasaba
- Organizer
  Symposium on Planetary Sciences 2023
- Data Source
  KAKENHI-PROJECT-22KK0044
[Presentation] Photolysis-induced carbon isotopic fractionation of CO in the Martian atmosphere2023
- Author(s)
  吉田辰哉, 青木翔平, 上野雄一郎, 寺田直樹, 中村勇貴, 塩原輝満恵, 吉田奈央, 中川広務, 堺正太朗, 小山俊吾
- Organizer
  Symposium on Planetary Sciences 2023
- Data Source
  KAKENHI-PROJECT-22KK0044
[Presentation] LAPYUTA 計画の検討状況2023
- Author(s)
  土屋史紀, 村上豪, 山崎敦, 木村智樹, 吉岡和夫, 鍵谷将人, 古賀亮一, 木村淳, 成田憲保, 亀田真吾, 生駒大洋, 大内正己, 田中雅臣, 益永圭, 堺正太朗, 垰千尋, 桑原正輝, 鳥海森, LAPYUTA WG 検討グループ
- Organizer
  日本天文学会2023年春季年会
- Data Source
  KAKENHI-PROJECT-22K03695
[Presentation] Effects of stellar spectra on ion escape from a Mars-like planet orbiting inactive low-mass stars2023
- Author(s)
  堺正太朗, 中山陽史, 関華奈子, 寺田直樹, 品川裕之, 坂田遼弥, 田中高史
- Organizer
  第24回惑星圏研究会
- Data Source
  KAKENHI-PROJECT-22K03695
[Presentation] 火星大気散逸研究の現状と展望2023
- Author(s)
  堺正太朗
- Organizer
  Symposium on Planetary Sciences 2023
- Invited
- Data Source
  KAKENHI-PROJECT-22KK0044
[Presentation] 多成分MHDによる太古火星におけるイオン散逸の研究: 固有磁場と太陽XUV放射の影響2022
- Author(s)
  坂田遼弥, 関華奈子, 堺正太朗, 寺田直樹, 品川裕之, 田中高史
- Organizer
  日本惑星科学会秋季講演会
- Data Source
  KAKENHI-PROJECT-22K03695
[Presentation] Plasmasphere formation at terrestrial rocky exoplanets around M-dwarf stars and its detectability: Possible evidence for the intrinsic magnetic field and thick atmosphere2022
- Author(s)
  K. Seki, A. Nakayama, R. Sakata, T. Nishioka, T. Imamura, S. Sakai, N. Terada, K. Keika, K. France, D. Brain
- Organizer
  American Geophysical Union Fall Meeting 2022
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-22K03695
[Presentation] 惑星科学, 生命圏科学, および天文学に向けた紫外線望遠鏡計画 (LAPYUTA): 計画の現状報告2022
- Author(s)
  土屋史紀, 村上豪, 山崎敦, 木村智樹, 吉岡和夫, 鍵谷将人, 古賀亮一, 木村淳, 成田憲保, 亀田真吾, 生駒大洋, 大内正己, 田中雅臣, 益永圭, 堺正太朗, 垰千尋, 桑原正輝, 鳥海森, LAPYUTA WG
- Organizer
  日本惑星科学会秋季講演会
- Data Source
  KAKENHI-PROJECT-22K03695
[Presentation] Atmospheric lifetime for a hypothetical Mars-sized planet orbiting Barnardユs Star2022
- Author(s)
  D. A. Brain, W. K. Peterson, O. Cohen, T. Cravens, A. Farrish, K. France, Y. Futaana, K. Garcia-Sage, A. Glocer, O. Hamil, M. Holmstrom, L. M. Kistler, F. Leblanc, A. W. Merkel, A. Nakayama, L. M. Peticolas, R. Ramstad, A. R. Renzaglia, S. Sakai, R. Sakata, N. R. Schnepf, K. Seki, R. J. Strangeway, W. Sun, A. Vidotto
- Organizer
  American Geophysical Union Fall Meeting 2022
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-22K03695
[Presentation] 惑星科学、生命圏科学、および天文学に向けた紫外線宇宙望遠鏡計画の検討状況2022
- Author(s)
  土屋史紀, 村上豪, 山崎敦, 木村智樹, 吉岡和夫, 鍵谷将人, 古賀亮一, 木村淳, 成田憲保, 亀田真吾, 生駒大洋, 大内正己, 田中雅臣, 益永圭, 堺正太朗, 垰千尋, 桑原正輝, 鳥海森
- Organizer
  第152回地球電磁気・地球惑星圏学会講演会
- Data Source
  KAKENHI-PROJECT-22K03695
[Presentation] LAPYUTA (Life-environmentology, Astronomy, and PlanetarY Ultraviolet Telescope Assembly) mission2022
- Author(s)
  F. Tsuchiya, G. Murakami, A. Yamazaki, T. Kimura, M. Kagitani, R. Koga, J. Kimura, N. Narita, S. Kameda, M. Ikoma, M. Ouchi, M. Tanaka, K. Masunaga, S. Sakai, C. Tao, M. Kuwabara, S. Toriumi
- Organizer
  Magnetospheres of the Outer Planets Meeting 2022
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-22K03695
[Presentation] 3次元グローバルMHDシミュレーションによる過去地球と現代タイタンの窒素大気散逸過程の比較2022
- Author(s)
  徳重みなみ, 木村智樹, 中田英太郎, 堺正太朗, 寺田直樹
- Organizer
  日本地球惑星科学連合2022年大会
- Data Source
  KAKENHI-PROJECT-22K03695
[Presentation] Atmospheric Lifetime of a Hypothetical Mars-Sized Planet Orbiting Barnardユs Star2022
- Author(s)
  D.Brain, W.Peterson, O.Cohen, T.Cravens, A.Farrish, K.France, Y.Futaana, K.Garcia-Sage, A.Glocer, O.Hamil, M.Holmstrom, L.Kistler, F.Leblanc, Y.Ma, A.Merkel, A.Nakayama, L.Peticolas, R.Ramstad, A.Renzaglia, S.Sakai, R.Sakata, E.Sanchez, N.Schnepf, K.Seki, R.Strangeway, W.Sun, N.Terada, A.Vidotto, L.Waldrop
- Organizer
  Exoplanets in Our Backyard 2
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-22K03695
[Presentation] MAVEN/STATICの観測に基づくダストストーム期間の火星電離圏イオン密度の周期変動の研究2022
- Author(s)
  長内大河, 益永圭, 原拓也, 寺田直樹, 堺正太朗, 吉田奈央
- Organizer
  第152回地球電磁気・地球惑星圏学会
- Data Source
  KAKENHI-PROJECT-22KK0044
[Presentation] Study of plasmasphere formation at terrestrial exoplanets around M-Dwarf stars and its detectability2022
- Author(s)
  関華奈子, 中山陽史, 坂田遼弥, 今村剛, 堺正太朗, 寺田直樹, 桂華邦裕, K. France, D. Brain
- Organizer
  第152回地球電磁気・地球惑星圏学会講演会
- Data Source
  KAKENHI-PROJECT-22K03695
[Presentation] Plasmasphere formation around terrestrial exoplanets: Possible evidence of the exoplanetary intrinsic magnetic field and atmosphere2022
- Author(s)
  K. Seki, A. Nakayama, R. Sakata, T. Imamura, S. Sakai, N. Terada, K. Keika, K. France, D. A. Brain
- Organizer
  Japan Geoscience Union Meeting 2022
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-22K03695
[Presentation] Study of atmospheric ion escape from exoplanet TOI-700 d based on global multi-species MHD simulations2022
- Author(s)
  T. Nishioka, K. Seki, R. Sakata, K. Yamamoto, S. Sakai, N. Terada, H. Shinagawa
- Organizer
  Japan Geoscience Union Meeting 2022
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-22K03695
[Presentation] Study of atmospheric ion escape from exoplanet TOI-700d2022
- Author(s)
  T. Nishioka, K. Seki, R. Sakata, K. Yamamoto, S. Sakai, N. Terada, H. Shinagawa, A. Nakayama
- Organizer
  American Geophysical Union Fall Meeting 2022
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-22K03695
[Presentation] Birthplace of energetic ions around the Phobos' orbit at midnight: Implications for future MSA observations onboard MMX2022
- Author(s)
  堺正太朗, 寺田直樹, 益永圭, 中川広務, 横田勝一郎, 笠羽康正
- Organizer
  第152回地球電磁気・地球惑星圏学会
- Data Source
  KAKENHI-PROJECT-22KK0044
[Presentation] Effects of planetary intrinsic magnetic fields on the atmospheric ion escape from exoplanet TOI-700 d2022
- Author(s)
  西岡知輝, 関華奈子, 坂田遼弥, 山本和弘, 堺正太朗, 寺田直樹, 品川裕之, 中山陽史
- Organizer
  第152回地球電磁気・地球惑星圏学会講演会
- Data Source
  KAKENHI-PROJECT-22K03695

1. 中川広務 (30463772)

# of Collaborated Projects: 1 results

# of Collaborated Products: 3 results
2. 吉田辰哉 (10938393)

# of Collaborated Projects: 1 results

# of Collaborated Products: 3 results
3. 青木翔平 (60773629)

# of Collaborated Projects: 1 results

# of Collaborated Products: 2 results

Sakai Shotaro 堺 正太朗

堺 正太朗 サカイ ショウタロウ

Research Projects

Research Products

Co-Researchers

Influence of stellar spectra on the evolution of planetary atmospheresPrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

New isotope obervations of Mars atmsopheric evolution: International collaboration of European and Japanese Mars exploration missions

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

[Journal Article] Strong Depletion of 13C in CO Induced by Photolysis of CO2 in the Martian Atmosphere, Calculated by a Photochemical Model?2023

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Enhanced ion escape rate during IMF rotation under weak intrinsic magnetic field conditions on a Mars-like planet2023

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Multispecies MHD study of ion escape at ancient Mars: Effects of an intrinsic magnetic field and solar XUV radiation2022

Author(s)

Journal Title

DOI

Data Source

[Presentation] 火星大気散逸研究の現状と展望2023

Author(s)

Organizer

Data Source

[Presentation] LAPYUTA ワーキンググループ, 惑星科学、生命圏科学、および天文学に向けた紫外線宇宙望遠鏡計画 (LAPYUTA) の検討状況2023

Author(s)

Organizer

Data Source

[Presentation] Study of atmospheric ion escape from exoplanet TOI-700 d2023

Author(s)

Organizer

Data Source

[Presentation] Internal collaboration of European and Japanese Mars exploration missions2023

Author(s)

Organizer

Data Source

[Presentation] Photolysis-induced carbon isotopic fractionation of CO in the Martian atmosphere2023

Author(s)

Organizer

Data Source

[Presentation] LAPYUTA 計画の検討状況2023

Author(s)

Organizer

Data Source

[Presentation] Effects of stellar spectra on ion escape from a Mars-like planet orbiting inactive low-mass stars2023

Author(s)

Organizer

Data Source

[Presentation] 火星大気散逸研究の現状と展望2023

Author(s)

Organizer

Data Source

[Presentation] 多成分MHDによる太古火星におけるイオン散逸の研究: 固有磁場と太陽XUV放射の影響2022

Author(s)

Organizer

Data Source

[Presentation] Plasmasphere formation at terrestrial rocky exoplanets around M-dwarf stars and its detectability: Possible evidence for the intrinsic magnetic field and thick atmosphere2022

Author(s)

Organizer

Data Source

[Presentation] 惑星科学, 生命圏科学, および天文学に向けた紫外線望遠鏡計画 (LAPYUTA): 計画の現状報告2022

Author(s)

Organizer

Data Source

[Presentation] Atmospheric lifetime for a hypothetical Mars-sized planet orbiting Barnardユs Star2022

Author(s)

Organizer

Data Source

Sakai Shotaro 堺正太朗

堺正太朗サカイショウタロウ