The role of cluster evolution in disrupting planetary systems and discs: the Kozai mechanism

Details The role of cluster evolution in disrupting planetary systems and discs: the Kozai mechanism The role of cluster evolution in disrupting planetary systems and discs: the Kozai mechanism

Aug 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009mnras.397.1041p&link_type=abstract

Monthly Notices of the Royal Astronomical Society, Volume 397, Issue 2, pp. 1041-1045.

Astronomy and Astrophysics

Astronomy

3

Methods: N-Body Simulations, Stars: Formation, Planetary Systems, Open Clusters And Associations: General

Scientific paper

We examine the effects of dynamical evolution in clusters on planetary systems or protoplanetary discs orbiting the components of binary stars. In particular, we look for evidence that the companions of host stars of planetary systems or discs could have their inclination angles raised from zero to between the threshold angles (39.23° and 140.77°) that can induce the Kozai mechanism. We find that up to 20 per cent of binary systems have their inclination angles increased to within the threshold range. Given that half of all extrasolar planets could be in binary systems, we suggest that up to 10 per cent of extrasolar planets could be affected by this mechanism.

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