ON THE FATE OF UNSTABLE CIRCUMBINARY PLANETS: TATOOINE’S CLOSE ENCOUNTERS WITH A DEATH STAR
書誌事項
- 公開日
- 2016-02-02
- 権利情報
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- https://iopscience.iop.org/page/copyright
- https://iopscience.iop.org/info/page/text-and-data-mining
- DOI
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- 10.3847/0004-637x/818/1/6
- 公開者
- American Astronomical Society
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説明
<jats:title>ABSTRACT</jats:title> <jats:p>Circumbinary planets whose orbits become unstable may be ejected, accreted, or even captured by one of the stars. We quantify the relative rates of these channels, for a binary of secondary star’s mass fraction 0.1 with an orbit of 1 AU. The most common outcome is ejection, which happens ∼80% of the time. If binary systems form circumbinary planets readily and sloppily, this process may fill the Milky Way with free-floating planets. A significant fraction of the time, ∼20%, the unstable planet strikes the primary or secondary. We tracked whether a Jupiter-like planet would undergo tidal stripping events during close passages, and find that these events are rarely strong enough to capture the planet, although this may be observable via free-floating planets that are heated or spun-up by this process.</jats:p>
収録刊行物
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- The Astrophysical Journal
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The Astrophysical Journal 818 (1), 6-, 2016-02-02
American Astronomical Society
