Dissipation of Planetary Atmospheres

descriptionPublicationkeyboard_double_arrow_right Article 13 Nov 1959 English Publisher:American Association for the Advancement of Science (AAAS)Journal:Science, volume 130, pages 1,337-1,338 (issn: 0036-8075, eissn: 1095-9203,

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Authors: V A, Firsoff;

doi: 10.1126/science.130.3385.1337

pmid: 17753093

Dissipation of Planetary Atmospheres

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Abstract

Escape-level density is approximately inversely proportional to gravity and with decreasing mass will tend toward that of interplanetary gas. When this value is reached, dissipation must cease. The minimum possible ground density of lunar air is calculated to be 10 –12 that of the air at normal temperature and pressure. Ionization creates a binding electrostatic charge at the escape level.

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