Checking Stability Of Planet Orbits In Multiple-planet Systems

Details Checking Stability Of Planet Orbits In Multiple-planet Systems Checking Stability Of Planet Orbits In Multiple-planet Systems

2009-12-02

arxiv.org/abs/0912.0404v1

Astronomy and Astrophysics

Astrophysics

Earth and Planetary Astrophysics

2 pages, to be published in the proceedings of the "Pathways Towards Habitable Planets" conference, held in Barcelona (14-18 S

Scientific paper

The SIM Lite mission will undertake several planet surveys. One of them, the Deep Planet Survey, is designed to detect Earth-mass exoplanets in the habitable zones of nearby main sequence stars. A double blind study has been conducted to assess the capability of SIM to detect such small planets in a multi-planet system where several giant planets might be present. One of the tools which helped in deciding if the detected planets were actual was an orbit integrator using the publicly available HNBody code so that the orbit solutions could be analyzed in terms of temporal stability over many orbits. In this contribution, we describe the implementation of this integrator and analyze the different blind test solutions. We discuss also the usefulness of this method given that some planets might be not detected but still affect the overall stability of the system.

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