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3D climate modeling of Earth-like extrasolar planets orbiting different types of host stars

dc.contributor.authorGODOLT, M.,
hal.structure.identifierNottingham Transportation Engineering Centre
dc.contributor.authorGRENFELL, J. L.,
dc.contributor.authorHAMANN-REINUS, A.,
dc.contributor.authorKITZMANN, D.,
dc.contributor.authorKUNZE, M.,
hal.structure.identifierInstitut für Meteorologie [Berlin]
dc.contributor.authorLANGEMATZ, U.,
hal.structure.identifierECLIPSE 2015
dc.contributor.authorVON PARIS, P.
hal.structure.identifierInstitut für Optik und Atomare Physik
dc.contributor.authorPATZER, A. B. C.,
hal.structure.identifierDLR Institut für Planetenforschung
dc.contributor.authorRAUER, H.,
dc.contributor.authorSTRACKE, B.,
dc.date.issued2015
dc.identifier.issn0032-0633
dc.description.abstractEnThe potential habitability of a terrestrial planet is usually defined by the possible existence of liquid water on its surface. The potential presence of liquid water depends on many factors such as, most importantly, surface temperatures. The properties of the planetary atmosphere and its interaction with the radiative energy provided by the planet's host star are thereby of decisive importance. In this study we investigate the influence of different main-sequence stars upon the climate of Earth-like extrasolar planets and their potential habitability by applying a 3D Earth climate model accounting for local and dynamical processes. The calculations have been performed for planets with Earth-like atmospheres at orbital distances where the total amount of energy received from the various host stars equals the solar constant. In contrast to previous 3D modeling studies, we include the effect of ozone radiative heating upon the vertical temperature structure of the atmospheres. The global orbital mean results obtained have been compared to those of a 1D radiative convective climate model. The different stellar spectral energy distributions lead to different surface temperatures and due to ozone heating to very different vertical temperature structures. As previous 1D studies we find higher surface temperatures for the Earth-like planet around the K-type star, and lower temperatures for the planet around the F-type star compared to an Earth-like planet around the Sun. However, this effect is more pronounced in the 3D model results than in the 1D model because the 3D model accounts for feedback processes such as the ice-albedo and the water vapor feedback. Whether the 1D model may approximate the global mean of the 3D model results strongly depends on the choice of the relative humidity profile in the 1D model, which is used to determine the water vapor profile.
dc.language.isoen
dc.publisherElsevier
dc.title.en3D climate modeling of Earth-like extrasolar planets orbiting different types of host stars
dc.typeArticle de revue
dc.identifier.doi10.1016/j.pss.2015.03.010
dc.subject.halPlanète et Univers [physics]/Astrophysique [astro-ph]/Planétologie et astrophysique de la terre [astro-ph.EP]
dc.identifier.arxiv1504.01558
bordeaux.journalPlanetary and Space Science
bordeaux.page62-76
bordeaux.volume111
bordeaux.peerReviewedoui
hal.identifierhal-01141454
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01141454v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Planetary%20and%20Space%20Science&rft.date=2015&rft.volume=111&rft.spage=62-76&rft.epage=62-76&rft.eissn=0032-0633&rft.issn=0032-0633&rft.au=GODOLT,%20M.,&GRENFELL,%20J.%20L.,&HAMANN-REINUS,%20A.,&KITZMANN,%20D.,&KUNZE,%20M.,&rft.genre=article


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