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dc.contributor.authorFauchez, Thomas J
dc.contributor.authorTurbet, Martin
dc.contributor.authorVillanueva, Geronimo L
dc.contributor.authorWolf, Eric T
dc.contributor.authorArney, Giada
dc.contributor.authorKopparapu, Ravi K
dc.contributor.authorLincowski, Andrew
dc.contributor.authorMandell, Avi
dc.contributor.authorWit, Julien de
dc.contributor.authorPidhorodetska, Daria
dc.contributor.authorDomagal-Goldman, Shawn D
dc.contributor.authorStevenson, Kevin B
dc.date.accessioned2021-10-27T19:56:38Z
dc.date.available2021-10-27T19:56:38Z
dc.date.issued2019
dc.identifier.urihttps://hdl.handle.net/1721.1/133783
dc.description.abstract© 2019. The American Astronomical Society. All rights reserved. The TRAPPIST-1 system, consisting of an ultracool host star having seven known Earth-sized planets, will be a prime target for atmospheric characterization with the James Webb Space Telescope (JWST). However, the detectability of atmospheric molecular species may be severely impacted by the presence of clouds and/or hazes. In this work, we perform 3D general circulation model (GCM) simulations with the LMD-G model supplemented by 1D photochemistry simulations at the terminator with the Atmos model to simulate several possible atmospheres for TRAPPIST-1e, 1f, and 1g: (1) modern Earth, (2) Archean Earth, and (3) CO2-rich atmospheres. The JWST synthetic transit spectra were computed using the GSFC Planetary Spectrum Generator. We find that the TRAPPIST-1e, 1f, and 1g atmospheres, with clouds and/or hazes, could be detected using JWST's NIRSpec Prism from the CO2 absorption line at 4.3 μm in less than 15 transits at 3σ or less than 35 transits at 5σ. However, our analysis suggests that other gases would require hundreds (or thousands) of transits to be detectable. We also find that H2O, mostly confined in the lower atmosphere, is very challenging to detect for these planets or similar systems if the planets' atmospheres are not in a moist greenhouse state. This result demonstrates that the use of GCMs, self-consistently taking into account the effect of clouds and subsaturation, is crucial to evaluate the detectability of atmospheric molecules of interest, as well as for interpreting future detections in a more global (and thus robust and relevant) approach.en_US
dc.language.isoen
dc.publisherAmerican Astronomical Societyen_US
dc.relation.isversionof10.3847/1538-4357/AB5862en_US
dc.rightsArticle is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.en_US
dc.sourceThe American Astronomical Societyen_US
dc.titleImpact of Clouds and Hazes on the Simulated JWST Transmission Spectra of Habitable Zone Planets in the TRAPPIST-1 Systemen_US
dc.typeArticleen_US
dc.contributor.departmentMassachusetts Institute of Technology. Department of Earth, Atmospheric, and Planetary Sciences
dc.relation.journalAstrophysical Journalen_US
dc.eprint.versionFinal published versionen_US
dc.type.urihttp://purl.org/eprint/type/JournalArticleen_US
eprint.statushttp://purl.org/eprint/status/PeerRevieweden_US
dc.date.updated2021-09-14T18:21:28Z
dspace.orderedauthorsFauchez, TJ; Turbet, M; Villanueva, GL; Wolf, ET; Arney, G; Kopparapu, RK; Lincowski, A; Mandell, A; Wit, JD; Pidhorodetska, D; Domagal-Goldman, SD; Stevenson, KBen_US
dspace.date.submission2021-09-14T18:21:31Z
mit.journal.volume887en_US
mit.journal.issue2en_US
mit.licensePUBLISHER_POLICY
mit.metadata.statusAuthority Work and Publication Information Neededen_US


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