Mostrar el registro sencillo del ítem

Effect of the stellar spin history on the tidal evolution of close-in planets

hal.structure.identifierSSE 2012
dc.contributor.authorBOLMONT, Emeline
hal.structure.identifierSSE 2012
dc.contributor.authorRAYMOND, Sean N.
hal.structure.identifierLaboratoire de Météorologie Dynamique (UMR 8539) [LMD]
dc.contributor.authorLECONTE, Jeremy
hal.structure.identifierAstrophysique Interprétation Modélisation [AIM (UMR7158 / UMR_E_9005 / UM_112)]
hal.structure.identifierNASA Ames Research Center [ARC]
dc.contributor.authorMATT, Sean P.
dc.date.created2012-07-09
dc.date.issued2012
dc.identifier.issn0004-6361
dc.description.abstractEnWe investigate how the evolution of the stellar spin rate affects, and is affected by, planets in close orbits, via star-planet tidal interactions. To do this, we used a standard equilibrium tidal model to compute the orbital evolution of single planets orbiting both Sun-like stars and 0.1 M\odot M-dwarfs. We tested two stellar spin evolution profiles, one with fast initial rotation (P=1.2 day) and one with slow initial rotation (P=8 day). We tested the effect of varying the stellar and planetary dissipation and the planet's mass and initial orbital radius. Conclusions: Tidal evolution allows to differentiate the early behaviors of extremely close-in planets orbiting either a rapidly rotating star or a slowly rotating star. The early spin-up of the star allows the close-in planets around fast rotators to survive the early evolution. For planets around M-dwarfs, surviving the early evolution means surviving on Gyr timescales whereas for Sun-like stars the spin-down brings about late mergers of Jupiter planets. In light of this study, we can say that differentiating between one spin evolution from another given the present position of planets can be very tricky. Unless we can observe some markers of former evolution it is nearly impossible to distinguish the two very different spin profiles, let alone intermediate spin profiles. Though some conclusions can still be drawn from statistical distributions of planets around fully convective M-dwarfs. However, if the tidal evolution brings about a merger late in its history it can also entail a noticeable acceleration of the star in late ages, so that it is possible to have old stars that spin rapidly. This raises the question of better constraining the age of stars.
dc.language.isoen
dc.publisherEDP Sciences
dc.subject.enSolar and Stellar Astrophysics
dc.subject.enAstrophysics
dc.subject.enEarth and Planetary Astrophysics
dc.title.enEffect of the stellar spin history on the tidal evolution of close-in planets
dc.typeArticle de revue
dc.identifier.doi10.1051/0004-6361/201219645
dc.subject.halPhysique [physics]/Astrophysique [astro-ph]/Planétologie et astrophysique de la terre [astro-ph.EP]
dc.subject.halPhysique [physics]/Astrophysique [astro-ph]/Astrophysique stellaire et solaire [astro-ph.SR]
dc.subject.halPlanète et Univers [physics]/Astrophysique [astro-ph]/Astrophysique stellaire et solaire [astro-ph.SR]
dc.subject.halPlanète et Univers [physics]/Astrophysique [astro-ph]/Planétologie et astrophysique de la terre [astro-ph.EP]
dc.identifier.arxiv1207.2127
bordeaux.journalAstronomy and Astrophysics - A&A
bordeaux.pageA124
bordeaux.volume544
bordeaux.peerReviewedoui
hal.identifierhal-00717156
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-00717156v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Astronomy%20and%20Astrophysics%20-%20A&A&rft.date=2012&rft.volume=544&rft.spage=A124&rft.epage=A124&rft.eissn=0004-6361&rft.issn=0004-6361&rft.au=BOLMONT,%20Emeline&RAYMOND,%20Sean%20N.&LECONTE,%20Jeremy&MATT,%20Sean%20P.&rft.genre=article


Archivos en el ítem

ArchivosTamañoFormatoVer

No hay archivos asociados a este ítem.

Este ítem aparece en la(s) siguiente(s) colección(ones)

Mostrar el registro sencillo del ítem