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Gas Giant Planets as Dynamical Barriers to Inward-Migrating Super-Earths

hal.structure.identifierLaboratoire de Cosmologie, Astrophysique Stellaire & Solaire, de Planétologie et de Mécanique des Fluides [CASSIOPEE]
dc.contributor.authorMORBIDELLI, Alessandro,
dc.contributor.authorIZIDORO, A.
hal.structure.identifierECLIPSE 2015
dc.contributor.authorRAYMOND, Sean N.
dc.date.issued2015-08
dc.date.conference2015-01-04
dc.description.abstractEnPlanets of 1–4 times Earth’s size on orbits shorter than 100 days exist around 30–50% of all Sun-like stars. In fact, the Solar System is particularly outstanding in its lack of “hot super-Earths” (or “mini-Neptunes”). These planets —or their building blocks—may have formed on wider orbits and migrated inward due to interactions with the gaseous protoplanetary disk. Here, we use a suite of dynamical simulations to show that gas giant planets act as barriers to the inward migration of super-Earths initially placed on more distant orbits. Jupiter’s early formation may have prevented Uranus and Neptune (and perhaps Saturn’s core) from becoming hot super-Earths. Our model predicts that the populations of hot super-Earth systems and Jupiter-like planets should be anti-correlated: gas giants (especially if they form early) should be rare in systems with many hot super-Earths. Testing this prediction will constitute a crucial assessment of the validity of the migration hypothesis for the origin of close-in super-Earths.
dc.language.isoen
dc.title.enGas Giant Planets as Dynamical Barriers to Inward-Migrating Super-Earths
dc.typeCommunication dans un congrès
dc.subject.halPlanète et Univers [physics]/Astrophysique [astro-ph]/Planétologie et astrophysique de la terre [astro-ph.EP]
bordeaux.conference.title2015IAUGA..2247106M - IAU General Assembly, Meeting #29, #2247106 - held 4-8 January 2015 in Seattle, USA
bordeaux.countryUS
bordeaux.conference.citySeattle
bordeaux.peerReviewedoui
hal.identifierhal-01192885
hal.version1
hal.invitednon
hal.proceedingsnon
hal.conference.end2015-01-08
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01192885v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.date=2015-08&rft.au=MORBIDELLI,%20Alessandro,&IZIDORO,%20A.&RAYMOND,%20Sean%20N.&rft.genre=unknown


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