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Revisiting and refining the model of TRAPPIST-1 with Spitzer

hal.structure.identifierUniversity of Washington [Seattle]
dc.contributor.authorAGOL, Eric
dc.contributor.authorCAREY, Sean
hal.structure.identifierCavendish Laboratory
dc.contributor.authorDELREZ, Laetitia
hal.structure.identifierCenter for Space and Habitability [CSH]
dc.contributor.authorDEMORY, Brice-Olivier
dc.contributor.authorFABRYCKY, Dan
hal.structure.identifierSpace Sciences, Technologies and Astrophysics Research Institute [STAR]
dc.contributor.authorGILLON, Michael
hal.structure.identifierCenter for Space and Habitability [CSH]
dc.contributor.authorGRIMM, Simon
dc.contributor.authorINGALLS, Jim
dc.contributor.authorMALHOTRA, Renu
dc.contributor.authorMORRIS, Brett
hal.structure.identifierECLIPSE 2019
dc.contributor.authorRAYMOND, Sean N.
hal.structure.identifierSchool of Physics and Astronomy [Birmingham]
dc.contributor.authorTRIAUD, Amaury
hal.structure.identifierNamur Center for Complex Systems [Namur] [NaXys]
dc.contributor.authorBOLMONT, Emeline
hal.structure.identifierCenter for Astrophysics and Space Sciences [La Jolla] [CASS]
dc.contributor.authorBURGASSER, Adam
dc.date.issued2019
dc.descriptionSpitzer Proposal ID #14223
dc.description.abstractEnWith the Spitzer Space Telescope, we have discovered a system of seven transiting planets about the star TRAPPIST-1, and for the first time measured the densities of three Earth-sized, temperate exoplanets using transit-timing variations (Gillon et al. 2017; Ducrot et al. 2018; Grimm et al. 2018). We propose to gather additional transits of the TRAPPIST-1 system, focusing on the outer planets in the system which have had fewer transits observed to date. The four-fold goals of this proposal are: i). to flag potential transits which might be affected by stellar variability; ii). to constrain the dynamical state of the planet system; iii). to better constrain the masses of the planets; iv). to tighten the ephemeris forecast for observations with JWST. In addition, we will search for any evidence an eighth planet, characterize the stellar variability, and forecast planet-planet overlaps during transits. The proposed observations contain measurements which are only possible in March-April 2019, and so we request a time critical review to the extent possible.
dc.language.isoen
dc.title.enRevisiting and refining the model of TRAPPIST-1 with Spitzer
dc.typeAutre document
dc.subject.halPlanète et Univers [physics]/Astrophysique [astro-ph]/Planétologie et astrophysique de la terre [astro-ph.EP]
hal.identifierhal-02079563
hal.version1
hal.popularnon
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-02079563v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.date=2019&rft.au=AGOL,%20Eric&CAREY,%20Sean&DELREZ,%20Laetitia&DEMORY,%20Brice-Olivier&FABRYCKY,%20Dan&rft.genre=unknown


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