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Red worlds: Spitzer exploration of a compact system of temperate terrestrial planets transiting a nearby Jupiter-sized star

hal.structure.identifierEnvironnement Méditerranéen et Modélisation des Agro-Hydrosystèmes [EMMAH]
dc.contributor.authorGILLON, Michael,
dc.contributor.authorBURDANOV, Artem,
dc.contributor.authorDELREZ, Laetitia,
hal.structure.identifierInstitut d'Astrophysique et de Géophysique [Liège]
dc.contributor.authorJEHIN, Emmanuel,
dc.contributor.authorMAGAIN, Pierre,
hal.structure.identifierUniversité de Liège
dc.contributor.authorVAN GROOTEL, Valerie,
hal.structure.identifierNamur Center for Complex Systems [Namur] [NaXys]
dc.contributor.authorBOLMONT, Emeline,
hal.structure.identifierECLIPSE 2016
dc.contributor.authorLECONTE, J.
hal.structure.identifierECLIPSE 2016
dc.contributor.authorRAYMOND, Sean N.
hal.structure.identifierECLIPSE 2016
dc.contributor.authorSELSIS, Franck
dc.contributor.authorDEMORY, Brice-Olivier,
hal.structure.identifierObservatoire Astronomique de l'Université de Genève [ObsGE]
dc.contributor.authorQUELOZ, Didier
dc.contributor.authorTRIAUD, Amaury,
dc.contributor.authorDE WIT, Julien,
hal.structure.identifierDept. of Physics
dc.contributor.authorBURGASSER, Adam,
dc.contributor.authorCAREY, Sean,
dc.contributor.authorINGALLS, Jim,
hal.structure.identifierDeutsches Elektronen-Synchrotron [Hamburg] [DESY]
dc.contributor.authorLEDERER, Sue,
dc.contributor.authorAGOL, Eric,
dc.contributor.authorDECK, Katherine,
dc.date.issued2016-08
dc.descriptionSpitzer Proposal ID #13067
dc.description.abstractEnThe recently detected TRAPPIST-1 planetary system represents a unique opportunity to extend the nascent field of comparative exoplanetology into the realm of temperate terrestrial worlds. It is composed of at least three Earth-sized planets similar in sizes and irradiations to Earth and Venus transiting an ultra-cool dwarf star only 39 light-years away. Thanks to the Jupiter-size and infrared brightness of their host star, the planets are amenable for detailed atmospheric characterization with JWST, including for biosignatures detection. Our Spitzer Exploration Science Program aims to prepare and optimize the detailed study of this fascinating planetary system through the two following complementary sub-programs: (1) a 480 hrs continuous monitoring of the star to explore its full inner system up to its ice line in a search for any other transiting object(s) (planet, moon, Trojan) with a sensitivity high enough to detect any body as small as Ganymede, and (2) the observation of ~130 transits of the planets (520 hrs). This second part has two goals. First, to measure precisely the planets' masses and eccentricities through the Transit Timing Variations method, to constrain strongly their compositions and energy budgets. Secondly, to measure with an extremely high precision the planets' effective radii at 4.5 microns to assess, when combined with future HST/WFC3 observations, the presence of an atmosphere around them. The two complementary parts of this program will make it a long-lasting legacy of Spitzer to the fields of comparative exoplanetology and astrobiology, by providing the necessary measurements on the inner system of TRAPPIST-1 (complete census, masses, eccentricities, first insights on atmospheres) required to initiate and optimize the detailed atmospheric characterization of its different components with JWST and other future facilities.
dc.language.isoen
dc.title.enRed worlds: Spitzer exploration of a compact system of temperate terrestrial planets transiting a nearby Jupiter-sized star
dc.typeAutre document
dc.subject.halPlanète et Univers [physics]/Astrophysique [astro-ph]/Planétologie et astrophysique de la terre [astro-ph.EP]
bordeaux.page13067
hal.identifierhal-01359510
hal.version1
hal.popularnon
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01359510v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.date=2016-08&rft.spage=13067&rft.epage=13067&rft.au=GILLON,%20Michael,&BURDANOV,%20Artem,&DELREZ,%20Laetitia,&JEHIN,%20Emmanuel,&MAGAIN,%20Pierre,&rft.genre=unknown


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