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Dynamics of exoplanetary systems, links to their habitability

hal.structure.identifierECLIPSE 2014
hal.structure.identifierObservatoire aquitain des sciences de l'univers [OASU]
hal.structure.identifierLaboratoire d'Astrophysique de Bordeaux [Pessac] [LAB]
hal.structure.identifierUniversité Sciences et Technologies - Bordeaux 1 [UB]
dc.contributor.authorBOLMONT, Emeline
hal.structure.identifierObservatoire aquitain des sciences de l'univers [OASU]
hal.structure.identifierLaboratoire d'Astrophysique de Bordeaux [Pessac] [LAB]
hal.structure.identifierUniversité Sciences et Technologies - Bordeaux 1 [UB]
hal.structure.identifierECLIPSE 2014
dc.contributor.authorRAYMOND, Sean N.
hal.structure.identifierObservatoire aquitain des sciences de l'univers [OASU]
hal.structure.identifierLaboratoire d'Astrophysique de Bordeaux [Pessac] [LAB]
hal.structure.identifierUniversité Sciences et Technologies - Bordeaux 1 [UB]
hal.structure.identifierECLIPSE 2014
dc.contributor.authorSELSIS, Franck
dc.date.issued2014
dc.date.conference2014-06-03
dc.description.abstractEnOur knowledge of planets' orbital dynamics, which was based on Solar System studies, has been challenged by the diversity of exoplanetary systems. Around cool and ultra cool dwarfs, the influence of tides on the orbital and spin evolution of planets can strongly affect their climate and their capacity to host surface liquid water. We illustrate the role of tides and dynamics with the extreme case of planets orbiting around brown dwarfs. In multiple planet systems, the eccentricity is excited by planet-planet interactions. Planets are therefore heated up from the inside by the tidally-induced friction. This process can heat a habitable zone planet to such a level that surface liquid water cannot exist. We also talk about the newly discovered potentially habitable Earth-sized planet Kepler-186f. Given the poorly estimated age of the system, the planet could still be evolving towards synchronization and have a high obliquity or be pseudo-synchronized with a zero obliquity. These two configurations would have a different effect on the climate of this planet.
dc.language.isoen
dc.subject.enAstrophysics
dc.subject.enEarth and Planetary Astrophysics
dc.title.enDynamics of exoplanetary systems, links to their habitability
dc.typeCommunication dans un congrès
dc.subject.halPhysique [physics]/Astrophysique [astro-ph]
dc.identifier.arxiv1412.0284
bordeaux.page63
bordeaux.countryFR
bordeaux.conference.cityParis
bordeaux.peerReviewedoui
hal.identifierhal-01090752
hal.version1
hal.invitednon
hal.proceedingsoui
hal.conference.end2014-06-06
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01090752v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.date=2014&rft.spage=63&rft.epage=63&rft.au=BOLMONT,%20Emeline&RAYMOND,%20Sean%20N.&SELSIS,%20Franck&rft.genre=unknown


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