| 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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| Budget Amount *help |
¥109,200,000 (Direct Cost: ¥84,000,000、Indirect Cost: ¥25,200,000)
Fiscal Year 2021: ¥21,450,000 (Direct Cost: ¥16,500,000、Indirect Cost: ¥4,950,000)
Fiscal Year 2020: ¥21,450,000 (Direct Cost: ¥16,500,000、Indirect Cost: ¥4,950,000)
Fiscal Year 2019: ¥21,450,000 (Direct Cost: ¥16,500,000、Indirect Cost: ¥4,950,000)
Fiscal Year 2018: ¥21,450,000 (Direct Cost: ¥16,500,000、Indirect Cost: ¥4,950,000)
Fiscal Year 2017: ¥23,400,000 (Direct Cost: ¥18,000,000、Indirect Cost: ¥5,400,000)
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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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