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Seven temperate terrestrial planets around the nearby ultracool dwarf star TRAPPIST-1

hal.structure.identifierInstitut d'Astrophysique et de Géophysique [Liège]
dc.contributor.authorGILLON, Michaël
hal.structure.identifierInstitute of Astronomy [Cambridge]
dc.contributor.authorTRIAUD, Amaury H. M. J.
hal.structure.identifierCenter for Space and Habitability [CSH]
hal.structure.identifierCavendish Laboratory
dc.contributor.authorDEMORY, Brice-Olivier
hal.structure.identifierInstitut d'Astrophysique et de Géophysique [Liège]
dc.contributor.authorJEHIN, Emmanuël
hal.structure.identifierUniversity of Washington [Seattle]
hal.structure.identifierNASA Astrobiology Institute [NAI]
dc.contributor.authorAGOL, Eric
hal.structure.identifierCaltech Department of Astronomy [Pasadena]
dc.contributor.authorDECK, Katherine M.
hal.structure.identifierNASA Johnson Space Center [JSC]
dc.contributor.authorLEDERER, Susan M.
hal.structure.identifierDepartment of Earth, Atmospheric and Planetary Sciences [MIT, Cambridge] [EAPS]
dc.contributor.authorDE WIT, Julien
hal.structure.identifierInstitut d'Astrophysique et de Géophysique [Liège]
dc.contributor.authorBURDANOV, Artem
hal.structure.identifierSpitzer Science Center
dc.contributor.authorINGALLS, James G.
hal.structure.identifierNamur Center for Complex Systems [Namur] [NaXys]
hal.structure.identifierAstrophysique Interprétation Modélisation [AIM (UMR7158 / UMR_E_9005 / UM_112)]
dc.contributor.authorBOLMONT, Emeline
hal.structure.identifierECLIPSE 2017
dc.contributor.authorLECONTE, J.
hal.structure.identifierLaboratoire d'Astrophysique de Bordeaux [Pessac] [LAB]
dc.contributor.authorRAYMOND, Sean N.
hal.structure.identifierECLIPSE 2017
dc.contributor.authorSELSIS, Franck
hal.structure.identifierLaboratoire de Météorologie Dynamique (UMR 8539) [LMD]
dc.contributor.authorTURBET, Martin
hal.structure.identifierUniversité Cadi Ayyad [Marrakech] [UCA]
dc.contributor.authorBARKAOUI, Khalid
hal.structure.identifierCenter for Astrophysics and Space Sciences [La Jolla] [CASS]
dc.contributor.authorBURGASSER, Adam
hal.structure.identifierDepartment of Physics and Astronomy [Leicester]
dc.contributor.authorBURLEIGH, Matthew R.
hal.structure.identifierSpitzer Science Center
dc.contributor.authorCAREY, Sean J.
hal.structure.identifierDepartment of Physics and Astronomy [Leicester]
dc.contributor.authorCHAUSHEV, Aleksander
hal.structure.identifierAstrophysics Research Institute [Liverpool] [ARI]
dc.contributor.authorCOPPERWHEAT, Chris M.
hal.structure.identifierInstitut d'Astrophysique et de Géophysique [Liège]
hal.structure.identifierCavendish Laboratory
dc.contributor.authorDELREZ, Laetitia
hal.structure.identifierPortuguese Hydrographic Institute
hal.structure.identifierInstitut d'Astrophysique et de Géophysique [Liège]
dc.contributor.authorFERNANDES, Catarina S.
hal.structure.identifierJeremiah Horrocks Institute for Mathematics, Physics and Astronomy [Preston]
dc.contributor.authorHOLDSWORTH, Daniel L.
hal.structure.identifierSouth African Astronomical Observatory [SAAO]
dc.contributor.authorKOTZE, Enrico J.
hal.structure.identifierInstitut d'Astrophysique et de Géophysique [Liège]
dc.contributor.authorVAN GROOTEL, Valérie
hal.structure.identifierFaculty of Science [Saudi Arabia]
dc.contributor.authorALMLEAKY, Yaseen
hal.structure.identifierUniversité Cadi Ayyad [Marrakech] [UCA]
dc.contributor.authorBENKHALDOUN, Zouhair
hal.structure.identifierInstitut d'Astrophysique et de Géophysique [Liège]
dc.contributor.authorMAGAIN, Pierre
hal.structure.identifierObservatoire Astronomique de l'Université de Genève [ObsGE]
hal.structure.identifierCavendish Laboratory
dc.contributor.authorQUELOZ, Didier
dc.date.issued2017-02-22
dc.identifier.issn0028-0836
dc.description.abstractEnOne aim of modern astronomy is to detect temperate, Earth-like exoplanets that are well suited for atmospheric characterization. Recently, three Earth-sized planets were detected that transit (that is, pass in front of) a star with a mass just eight per cent that of the Sun, located 12 parsecs away. The transiting configuration of these planets, combined with the Jupiter-like size of their host star—named TRAPPIST-1—makes possible in-depth studies of their atmospheric properties with present-day and future astronomical facilities. Here we report the results of a photometric monitoring campaign of that star from the ground and space. Our observations reveal that at least seven planets with sizes and masses similar to those of Earth revolve around TRAPPIST-1. The six inner planets form a near-resonant chain, such that their orbital periods (1.51, 2.42, 4.04, 6.06, 9.1 and 12.35 days) are near-ratios of small integers. This architecture suggests that the planets formed farther from the star and migrated inwards. Moreover, the seven planets have equilibrium temperatures low enough to make possible the presence of liquid water on their surfaces.
dc.description.sponsorshipModélisation du processus de croissance des planètes Joviennes/ - ANR-13-BS05-0003
dc.language.isoen
dc.publisherNature Publishing Group
dc.title.enSeven temperate terrestrial planets around the nearby ultracool dwarf star TRAPPIST-1
dc.typeArticle de revue
dc.identifier.doi10.1038/nature21360
dc.subject.halPlanète et Univers [physics]/Astrophysique [astro-ph]/Planétologie et astrophysique de la terre [astro-ph.EP]
dc.description.sponsorshipEuropeSPECULOOS: searching for habitable planets amenable for biosignatures detection around the nearest ultra-cool stars
dc.description.sponsorshipEuropeStars: dynamical Processes driving tidal Interactions, Rotation and Evolution
dc.description.sponsorshipEuropeModular Joints for Aircraft Composite Structures
bordeaux.journalNature
bordeaux.page456 - 460
bordeaux.volume542
bordeaux.issue7642
bordeaux.peerReviewedoui
hal.identifierhal-01481244
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01481244v1
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