2022 Fiscal Year Final Research Report
Modeling of water and material circulations in the solar system objects
| Project Area | Aqua planetology |
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| Project/Area Number |
17H06457
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| Research Category |
Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)
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| Allocation Type | Single-year Grants |
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| Review Section |
Science and Engineering
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| Research Institution | Tokyo Institute of Technology |
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Principal Investigator |
Genda Hidenori 東京工業大学, 地球生命研究所, 教授 (90456260)
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| Co-Investigator(Kenkyū-buntansha) |
高橋 芳幸 神戸大学, 理学研究科, 准教授 (00372657)
鎌田 俊一 北海道大学, 理学研究院, 准教授 (40723474)
倉本 圭 北海道大学, 理学研究院, 教授 (50311519)
黒川 宏之 東京工業大学, 地球生命研究所, 特任准教授 (80713643)
市川 浩樹 東京工業大学, 地球生命研究所, 研究員 (50570503)
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| Project Period (FY) |
2017-06-30 – 2022-03-31
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| Keywords | 惑星起源・進化 / 水循環 / 計算物理 / 固体地球物理学 / 惑星探査 |
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| Outline of Final Research Achievements |
In this research, we constructed a physically plausible models of water and material cycling in solar system bodies to elucidate how solar system bodies with diverse aqua environments have been formed and evolved. Specifically, based on the initial analysis of the asteroid Ryugu samples brought back by Hayabusa2, we constructed a thermal history and water-rock reaction model of the asteroidal parent body, as well as a water environment model for Mars and icy moons. Through this research, we were able to understand water-bearing solar system bodies (aquaplanets) at a higher level beyond a mere understanding of the presence of water, involving chemical reactions and material cycling facilitated by water. The aforementioned research outcomes not only deepen our understanding of the formation and evolution of solar system bodies but also provide insights into the presence and significance of water in the universe.
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| Free Research Field |
惑星科学
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| Academic Significance and Societal Importance of the Research Achievements |
太陽系の水惑星における水・物質循環を理解することで、宇宙における生命誕生の可能性について、これまでの単なる水の存否ではなく、一段階上のレベルで迫ることができた。また、本研究を通して若手研究者の育成にも成果を上げ、次世代の研究者の育成に貢献することができた。また、本研究成果がアウトリーチ活動を通じて広まることで、一般の人々にも宇宙における生命の可能性についてよりいっそう関心を持ってもらうことができた。
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