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Orbital stability constraints on the nature of planetary systems (1981)

Graziani, F. ; Black, D. C.

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Publication Date: 2011-08-18

Description: A fully self-consistent, N-body computer code is used to study conditions under which model planetary systems, each consisting of a star and two 'planetary' companions, become orbitally unstable as a result of gravitational interactions between the companions. A formula describing a necessary condition for orbital stability is given. It is found that giant gaseous protoplanets of the type postulated by Cameron (1978) to be precursors of the present-day solar system planets could have stable orbits for at least 10,000 years, the time required for significant core formation in a typical giant gaseous protoplanet.

Keywords: ASTROPHYSICS

Type: Astrophysical Journal; vol. 251

Format: text

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