地学雑誌
Online ISSN : 1884-0884
Print ISSN : 0022-135X
論説
ハビタブルトリニティモデルと太陽系におけるハビタブルプラネットの存否
ジェームズ・ ドーム丸山 茂徳
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ジャーナル フリー

2018 年 127 巻 5 号 p. 609-618

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抄録

 Habitable Trinity is a new concept for a habitable environment proposed by Dohm and Maruyama (2015). This concept indicates that the coexistence of an atmosphere, an ocean, and a landmass, accompanied by a continuous circulation of material among these three components driven by the Sun, is one of the minimum requirements for life to emerge and evolve. Because a life body consists of carbon (mainly from the atmosphere), oxygen (mainly from an ocean), hydrogen (mainly from an ocean), nitrogen (mainly from the atmosphere), and various nutrients (supplied from a landmass), the presence of water alone is not a sufficient condition. The Habitable Trinity concept can also be applied to other planets such as Mars, Europa, and Titan, and even exoplanets, as a useful index in the quest for life-containing planetary bodies.

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© 2018 公益社団法人 東京地学協会
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