The random component of planetary rotation

Details The random component of planetary rotation The random component of planetary rotation

Oct 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991icar...93..288l&link_type=abstract

Icarus (ISSN 0019-1035), vol. 93, Oct. 1991, p. 288-297.

Statistics

Computation

39

Planetary Mantles, Planetary Mass, Planetary Rotation, Protoplanets, Random Processes, Angular Momentum, Solar System Evolution

Scientific paper

In the present computation of the rms rotational angular momentum accumulated by a planet as a result of the stochastic off-center impacts of large planetesimals over the course of the accretionary epoch, planets' observed spin periods and obliquities were used to estimate the masses of the largest bodies which impacted each planet during its history. Several planets have likely undergone at least one collisional event with a body having over 5 percent of the planet's ultimate mass, thereby supporting giant-impact theories of the origins of the moon and Charon as well as the explanation of Mercury's excess Fe in terms of the partial collisional stripping of its mantle.

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