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ARES V: No evidence for molecular absorption in the HST WFC3 spectrum of GJ 1132 b

hal.structure.identifierDipartimento di Fisica [Roma La Sapienza]
dc.contributor.authorMUGNAI, Lorenzo
hal.structure.identifierINAF - Osservatorio Astronomico di Palermo [OAPa]
hal.structure.identifierDipartimento di Fisica e Chimica [Palermo] [DiFC]
dc.contributor.authorMODIRROUSTA-GALIAN, Darius
hal.structure.identifierDepartment of Physics and Astronomy [UCL London]
dc.contributor.authorEDWARDS, Billy
hal.structure.identifierDepartment of Physics and Astronomy [UCL London]
dc.contributor.authorCHANGEAT, Quentin
hal.structure.identifierMax-Planck-Institut für Astronomie [MPIA]
dc.contributor.authorBOUWMAN, Jeroen
hal.structure.identifierINAF - Osservatorio Astronomico di Palermo [OAPa]
hal.structure.identifierInstituto de Astrofisica de Canarias [IAC]
dc.contributor.authorMORELLO, Giuseppe
hal.structure.identifierDepartment of Physics and Astronomy [UCL London]
dc.contributor.authorAL-REFAIE, Ahmed
hal.structure.identifierInstitute of Astronomy [Leuven]
dc.contributor.authorBAEYENS, Robin
hal.structure.identifierCollege of Engineering, Mathematics and Physical Sciences [Exeter] [EMPS]
dc.contributor.authorBIEGER, Michelle Fabienne
hal.structure.identifierLaboratoire d'études spatiales et d'instrumentation en astrophysique = Laboratory of Space Studies and Instrumentation in Astrophysics [LESIA]
dc.contributor.authorBLAIN, Doriann
hal.structure.identifierInstitut d'Astrophysique de Paris [IAP]
hal.structure.identifierLaboratoire d'études spatiales et d'instrumentation en astrophysique = Laboratory of Space Studies and Instrumentation in Astrophysics [LESIA]
hal.structure.identifierPLANETO - LATMOS
dc.contributor.authorGRESSIER, Amélie
hal.structure.identifierDipartimento di Fisica [Torino]
hal.structure.identifierINAF - Osservatorio Astrofisico di Torino [OATo]
dc.contributor.authorGUILLUY, Gloria
hal.structure.identifierLaboratoire d'Astrophysique de Bordeaux [Pessac] [LAB]
dc.contributor.authorJAZIRI, Yassin
hal.structure.identifierLaboratoire d'études spatiales et d'instrumentation en astrophysique = Laboratory of Space Studies and Instrumentation in Astrophysics [LESIA]
dc.contributor.authorKIEFER, Flavien
hal.structure.identifierDepartment of Physics and Astronomy [UCL London]
dc.contributor.authorMORVAN, Mario
hal.structure.identifierLaboratoire d'Astrophysique de Bordeaux [Pessac] [LAB]
dc.contributor.authorPLURIEL, William
hal.structure.identifierLaboratoire Interuniversitaire des Systèmes Atmosphériques [LISA (UMR_7583)]
hal.structure.identifierMaison de la Simulation [MDLS]
dc.contributor.authorPOVEDA, Mathilde
hal.structure.identifierLaboratoire d'études spatiales et d'instrumentation en astrophysique = Laboratory of Space Studies and Instrumentation in Astrophysics [LESIA]
hal.structure.identifierSubaru Telescope
hal.structure.identifierDepartment of Physics and Astronomy [UCL London]
dc.contributor.authorSKAF, Nour
hal.structure.identifierInstitute for Astronomy [Edinburgh] [IfA]
hal.structure.identifierCentre for Exoplanet Science
dc.contributor.authorWHITEFORD, Niall
hal.structure.identifierDepartment of Physics and Astronomy [UCL London]
dc.contributor.authorWRIGHT, Sam
hal.structure.identifierDepartment of Physics and Astronomy [UCL London]
dc.contributor.authorYIP, Kai Hou
hal.structure.identifierLaboratoire d'Astrophysique de Bordeaux [Pessac] [LAB]
dc.contributor.authorZINGALES, Tiziano
hal.structure.identifierLaboratoire d'études spatiales et d'instrumentation en astrophysique = Laboratory of Space Studies and Instrumentation in Astrophysics [LESIA]
dc.contributor.authorCHARNAY, Benjamin
hal.structure.identifierInstitut d'Astrophysique de Paris [IAP]
hal.structure.identifierLaboratoire d'études spatiales et d'instrumentation en astrophysique = Laboratory of Space Studies and Instrumentation in Astrophysics [LESIA]
dc.contributor.authorDROSSART, Pierre
hal.structure.identifierLaboratoire d'Astrophysique de Bordeaux [Pessac] [LAB]
dc.contributor.authorLECONTE, Jérémy
hal.structure.identifierLaboratoire Interuniversitaire des Systèmes Atmosphériques [LISA (UMR_7583)]
dc.contributor.authorVENOT, Olivia
hal.structure.identifierUniversity College of London [London] [UCL]
dc.contributor.authorWALDMANN, Ingo
hal.structure.identifierInstitut d'Astrophysique de Paris [IAP]
hal.structure.identifierSchool of Physical Sciences [Hobart]
dc.contributor.authorBEAULIEU, Jean-Philippe
dc.date.issued2021-05-26
dc.identifier.issn0004-6256
dc.description.abstractEnWe present a study on the spatially scanned spectroscopic observations of the transit of GJ 1132 b, a warm (∼500 K) super-Earth (1.13 R⊕) that was obtained with the G141 grism (1.125–1.650 μm) of the Wide Field Camera 3 (WFC3) on board the Hubble Space Telescope. We used the publicly available Iraclis pipeline to extract the planetary transmission spectra from the five visits and produced a precise transmission spectrum. We analyzed the spectrum using the TauREx3 atmospheric retrieval code, with which we show that the measurements do not contain molecular signatures in the investigated wavelength range and are best fit with a flat-line model. Our results suggest that the planet does not have a clear primordial, hydrogen-dominated atmosphere. Instead, GJ 1132 b could have a cloudy hydrogen-dominated atmosphere, have a very enriched secondary atmosphere, be airless, or have a tenuous atmosphere that has not been detected. Due to the narrow wavelength coverage of WFC3, these scenarios cannot be distinguished yet, but the James Webb Space Telescope may be capable of detecting atmospheric features, although several observations may be required to provide useful constraints.
dc.description.sponsorshipEtude des hydrocarbures en émission et absorption dasn les exoplanètes à haute température - ANR-16-CE31-0005
dc.language.isoen
dc.publisherAmerican Astronomical Society
dc.title.enARES V: No evidence for molecular absorption in the HST WFC3 spectrum of GJ 1132 b
dc.typeArticle de revue
dc.identifier.doi10.3847/1538-3881/abf3c3
dc.subject.halPlanète et Univers [physics]/Astrophysique [astro-ph]/Planétologie et astrophysique de la terre [astro-ph.EP]
dc.identifier.arxiv2104.01873
dc.description.sponsorshipEuropeExoplanet Atmosphere New Emission Transmission Spectra Analysis
dc.description.sponsorshipEuropeAtmospheres across the Universe - H2020-EU.1.1.
bordeaux.journalThe Astronomical Journal
bordeaux.page284
bordeaux.volume161
bordeaux.issue6
bordeaux.peerReviewedoui
hal.identifierhal-03277507
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-03277507v1
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