A Closer Earth and the Faint Young Sun Paradox: Modification of the Laws of Gravitation or Sun/Earth Mass Losses?
Given a solar luminosity LAr = 0.75L0 at the beginning of the Archean 3.8 Ga ago, where L0 is the present-day one, if the heliocentric distance, r, of the Earth was rAr = 0.956r0, the solar irradiance would have been as large as IAr = 0.82I0. It would have allowed for a liquid ocean on the terrestri...
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| Format: | Article |
| Language: | English |
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MDPI AG
2013-10-01
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| Series: | Galaxies |
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| Online Access: | http://www.mdpi.com/2075-4434/1/3/192 |