Coupled orbital and spin evolution of the CoRoT-7 two-planet system using a Maxwell viscoelastic rheology

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dc.contributor.authorRodríguez, A.
dc.contributor.authorCallegari, N. [UNESP]
dc.contributor.authorCorreia, A. C.M.
dc.contributor.institutionUniversidade Federal do Rio de Janeiro (UFRJ)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade de Aveiro
dc.contributor.institutionObservatoire de Paris
dc.date.accessioned2018-12-11T16:46:21Z
dc.date.available2018-12-11T16:46:21Z
dc.date.issued2016-01-01
dc.description.abstractWe investigate the orbital and rotational evolution of the CoRoT-7 two-planet system, assuming that the innermost planet behaves like a Maxwell body. We numerically resolve the coupled differential equations governing the instantaneous deformation of the inner planet together with the orbital motion of the system. We show that, depending on the relaxation time for the deformation of the planet, the orbital evolution has two distinct behaviours for relaxation times shorter than the orbital period, we reproduce the results from classic tidal theories, for which the eccentricity is always damped. However, for longer relaxation times, the eccentricity of the inner orbit is secularly excited and can grow to high values. This mechanism provides an explanation for the present high eccentricity observed for CoRoT-7 b, as well as for other close-in super-Earths in multiple planetary systems.en
dc.description.affiliationUniversidade Federal do Rio de Janeiro Observatorio do Valongo Ladeira do Pedro Antonio 43
dc.description.affiliationInstituto de Geociências e Ciências Exatas Unesp-Univ Estadual Paulista, Av. 24-A, 1515
dc.description.affiliationCIDMA Departamento de Física Universidade de Aveiro, Campus de Santiago
dc.description.affiliationASD IMCCE-CNRS UMR8028 Observatoire de Paris, 77 Av. Denfert-Rochereau
dc.description.affiliationUnespInstituto de Geociências e Ciências Exatas Unesp-Univ Estadual Paulista, Av. 24-A, 1515
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipIdFAPESP: 2013/16771-6, 2013/21891-0
dc.format.extent3249-3259
dc.identifierhttp://dx.doi.org/10.1093/mnras/stw2221
dc.identifier.citationMonthly Notices of the Royal Astronomical Society, v. 463, n. 3, p. 3249-3259, 2016.
dc.identifier.doi10.1093/mnras/stw2221
dc.identifier.file2-s2.0-85015050056.pdf
dc.identifier.issn1365-2966
dc.identifier.issn0035-8711
dc.identifier.scopus2-s2.0-85015050056
dc.identifier.urihttp://hdl.handle.net/11449/169534
dc.language.isoeng
dc.relation.ispartofMonthly Notices of the Royal Astronomical Society
dc.relation.ispartofsjr2,346
dc.relation.ispartofsjr2,346
dc.rights.accessRightsAcesso aberto
dc.sourceScopus
dc.subjectPlanet-star interactions
dc.subjectPlanets and satellites: dynamical evolution and stability
dc.titleCoupled orbital and spin evolution of the CoRoT-7 two-planet system using a Maxwell viscoelastic rheologyen
dc.typeArtigo

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