JpGU-AGU Joint Meeting 2020

講演情報

[E] ポスター発表

セッション記号 P (宇宙惑星科学) » P-AE 天文学・太陽系外天体

[P-AE22] 系外惑星

コンビーナ:生駒 大洋(東京大学 大学院理学系研究科 地球惑星科学専攻)、成田 憲保(東京大学)、藤井 友香(国立天文台)

[PAE22-P01] Climate for land planets

*小玉 貴則1 (1.ボルドー大学 )

キーワード:ハビタブル惑星、気候

Most of the studies for habitable planets focus on the boundary of the habitable zone in which a planet can maintain liquid water on its surface for a long term. Previous studies assumed a planet with a large amount of water on its surface. However, exoplanets should have various amounts of water on their surface.


Kodama et al. (2019) showed the relationship between the insolation at the inner edge of the habitable zone and the water distribution on a planetary surface. A land planet that has a small amount of water on its surface can maintain liquid water when it receives stronger insolation than that at the inner edge of the habitable zone for a planet with a large amount of water.


In this presentation, we summarize the climate for a land planet and show the results for TRAPPIST-1 d as a land planet.