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dc.contributor.authorKOLLMEIER, Juna A.
hal.structure.identifierECLIPSE 2019
dc.contributor.authorRAYMOND, Sean N.
dc.date.issued2019
dc.identifier.issn1745-3933
dc.description.abstractEnEach of the giant planets within the Solar System has large moons but none of these moons have their own moons (which we call submoons). By analogy with studies of moons around short-period exoplanets, we investigate the dynamical stability of submoons. We find that 10 km-scale submoons can only survive around large (1000 km-scale) moons on wide-separation orbits. Tidal dissipation destabilizes the orbits of submoons around moons that are small or too close to their host planet; this is the case for most of the Solar System's moons. A handful of known moons are, however, capable of hosting long-lived submoons: Saturn's moons Titan and Iapetus, Jupiter's moon Callisto, and Earth's Moon. Based on its inferred mass and orbital separation, the newly-discovered exomoon candidate Kepler-1625b-I can, in principle, host submoons, although its large orbital inclination may pose a difficulty for dynamical stability. The existence, or lack thereof, of submoons, may yield important constraints on satellite formation and evolution in planetary systems.
dc.description.sponsorshipModélisation du processus de croissance des planètes Joviennes/ - ANR-13-BS05-0003
dc.language.isoen
dc.publisherOxford Journals
dc.subject.enAstrophysics - Earth and Planetary Astrophysics
dc.title.enCan Moons Have Moons?
dc.typeArticle de revue
dc.identifier.doi10.1093/mnrasl/sly219
dc.subject.halPlanète et Univers [physics]/Astrophysique [astro-ph]/Planétologie et astrophysique de la terre [astro-ph.EP]
dc.identifier.arxiv1810.03304
bordeaux.journalMonthly Notices of the Royal Astronomical Society: Letters
bordeaux.pageL80-L84
bordeaux.volume483
bordeaux.issue1
bordeaux.peerReviewedoui
hal.identifierhal-01903146
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01903146v1
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