Using Satellites to Probe Extrasolar Planet Formation

Details Using Satellites to Probe Extrasolar Planet Formation Using Satellites to Probe Extrasolar Planet Formation

2012-04-04

arxiv.org/abs/1204.0976v1

Proceedings of the International Astronomical Union October 2010 6 : E1 (2 pages)

Astronomy and Astrophysics

Astrophysics

Earth and Planetary Astrophysics

Scientific paper

10.1017/S1743921312000038

Planetary satellites are an integral part of the heirarchy of planetary systems. Here we make two predictions concerning their formation. First, primordial satellites, which have an array of distinguishing characteristics, form only around giant planets. If true, the size and duration of a planetary system's protostellar nebula, as well as the location of its snow line, can be constrained by knowing which of its planets possess primordial satellites and which do not. Second, all satellites around terrestrial planets form by impacts. If true, this greatly enhances the constraints that can be placed on the history of terrestrial planets by their satellites' compositions, sizes, and dynamics.

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