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- W1497327584 endingPage "120" @default.
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- W1497327584 abstract "We study the dynamical stability and fates of hierarchical (in semimajor axis) two-planet systems with arbitrary eccentricities and mutual inclinations. We run a large number of long-term numerical integrations and use the Support Vector Machine algorithm to search for an empirical boundary that best separates stable systems from systems experiencing either ejections or collisions with the star. We propose the following new criterion for dynamical stability: , which should be applicable to planet-star mass ratios , integration times up to 108 orbits of the inner planet, and mutual inclinations . Systems that do not satisfy this condition by a margin of are expected to be unstable, mostly leading to planet ejections if , while slightly favoring collisions with the star for . We use our numerical integrations to test other stability criteria that have been proposed in the literature and show that our stability criterion performs significantly better for the range of system parameters that we have explored." @default.
- W1497327584 created "2016-06-24" @default.
- W1497327584 creator A5004354935 @default.
- W1497327584 date "2015-07-27" @default.
- W1497327584 modified "2023-09-24" @default.
- W1497327584 title "THE STABILITY AND FATES OF HIERARCHICAL TWO-PLANET SYSTEMS" @default.
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- W1497327584 doi "https://doi.org/10.1088/0004-637x/808/2/120" @default.
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