An analytical theory of planetary rotation rates |
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Authors: | AW Harris |
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Institution: | Jet Propulsion Laboratory, Pasadena, California 91103, USA |
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Abstract: | An approximate analytical theory is derived for the rate of rotation acquired by a planet as it grows from the solar nebula. This theory was motivated by a numerical study by Giuli, and yields fair agreement with his results. The periods of planetary rotation obtained are proportional to planetesimal encounter velocity, and appear to suggest lower values of this velocity than are commonly assumed to have existed during planetary formation. |
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