The instability of planetary systems in binaries: how the Kozai mechanism leads to strong planet-planet interactions

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dc.creatorMalmberg, Daniel
dc.creatorDavies, Melvyn B.
dc.creatorChambers, John E.
dc.date2006-12-01
dc.date2007-01-15
dc.date.accessioned2026-07-07T10:21:07Z
dc.date.available2026-07-07T10:21:07Z
dc.descriptionIn this letter we consider the evolution of a planetary system around a star inside a wide binary. We simulate numerically the evolution of the planetary orbits for both co-planar and highly-inclined systems. We find that the Kozai mechanism operates in the latter case. This produces a highly eccentric outer planet whose orbit crosses those of some of the inner planets. Strong planet-planet interactions then follow resulting in the ejection of one or more planets. We note that planetary systems resembling our solar system, formed around single stars in stellar clusters may exchange into binaries and thus will be vulnerable to planet stripping. This process will reduce the number of solar-system like planetary systems, and may produce at least some of the observed extra-solar planets.
dc.description5 pages, 2 figures, accepted for publication in MNRAS Letters
dc.identifierhttps://arxiv.org/abs/astro-ph/0612041
dc.identifierhttp://arxiv.org/abs/astro-ph/0612041
dc.identifierMon.Not.Roy.Astron.Soc.Lett.377:L1-L4,2007
dc.identifierdoi:10.1111/j.1745-3933.2007.00291.x
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/175071
dc.subjectAstrophysics
dc.titleThe instability of planetary systems in binaries: how the Kozai mechanism leads to strong planet-planet interactions
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