Orbital Stability of Earth-Type Planets in Binary Systems

Details Orbital Stability of Earth-Type Planets in Binary Systems Orbital Stability of Earth-Type Planets in Binary Systems

2007-12-19

arxiv.org/abs/0712.3266v1

Astronomy and Astrophysics

Astrophysics

4 pages, 1 figure; submitted to: Bioastronomy 2007: Molecules, Microbes and Extraterrestrial Life, eds. K. Meech, M. Mumma, J.

Scientific paper

About half of all known stellar systems with Sun-like stars consist of two or more stars, significantly affecting the orbital stability of any planet in these systems. Here we study the onset of instability for an Earth-type planet that is part of a binary system. Our investigation makes use of previous analytical work allowing to describe the permissible region of planetary motion. This allows us to establish a criterion for the orbital stability of planets that may be useful in the context of future observational and theoretical studies.

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