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Comment
. 2006 Jan 6;311(5757):38; author reply 38.
doi: 10.1126/science.1118412.

Comment on "A hydrogen-rich early Earth atmosphere"

David C Catling  1
Affiliations
Comment

Comment on "A hydrogen-rich early Earth atmosphere"

David C Catling. Science. .

Abstract

Tian et al. (Reports, 13 May 2005, p. 1014) proposed a hydrogen-rich early atmosphere with slow hydrogen escape from a cold thermosphere. However, their model neglects the ultraviolet absorption of all gases other than H2. The model also neglects Earth's magnetic field, which affects the temperature and density of ions and promotes nonthermal escape of neutral hydrogen.

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Comment on

  • A hydrogen-rich early Earth atmosphere.
    Tian F, Toon OB, Pavlov AA, De Sterck H. Tian F, et al. Science. 2005 May 13;308(5724):1014-7. doi: 10.1126/science.1106983. Epub 2005 Apr 7. Science. 2005. PMID: 15817816

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