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Magma Ocean, Water, and the Early Atmosphere of Venus

hal.structure.identifierFluides, automatique, systèmes thermiques [FAST]
hal.structure.identifierDepartment of Astronomy and Planetary Science [Flagstaff]
hal.structure.identifierHabitability, Atmospheres, and Biosignatures Laboratory
dc.contributor.authorSALVADOR, Arnaud
hal.structure.identifierInstitut de Physique du Globe de Paris [IPG Paris]
dc.contributor.authorAVICE, Guillaume
hal.structure.identifierDLR Institut für Planetenforschung
dc.contributor.authorBREUER, Doris
hal.structure.identifierInstitute of Geophysics [ETH Zürich]
dc.contributor.authorGILLMANN, Cédric
hal.structure.identifierSpace Research Institute of Austrian Academy of Sciences [IWF]
dc.contributor.authorLAMMER, Helmut
hal.structure.identifierPLANETO - LATMOS
dc.contributor.authorMARCQ, Emmanuel
hal.structure.identifierLaboratoire d'Astrophysique de Bordeaux [Pessac] [LAB]
dc.contributor.authorRAYMOND, Sean
hal.structure.identifierDepartment of Earth and Planetary Sciences [TITECH Tokyo]
dc.contributor.authorSAKURABA, Haruka
hal.structure.identifierSpace Research Institute of Austrian Academy of Sciences [IWF]
hal.structure.identifierInstitute of Physics [Graz]
hal.structure.identifierInstitute of Geodesy [Graz]
dc.contributor.authorSCHERF, Manuel
hal.structure.identifierNASA Goddard Institute for Space Studies [GISS]
hal.structure.identifierDepartment of Physics and Astronomy [Uppsala]
dc.contributor.authorWAY, M
dc.date.accessioned2023-11-20T17:21:39Z
dc.date.available2023-11-20T17:21:39Z
dc.date.issued2023-09-20
dc.identifier.issn0038-6308
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/185471
dc.description.abstractEnThe current state and surface conditions of the Earth and its twin planet Venus are drastically different. Whether these differences are directly inherited from the earliest stages of planetary evolution, when the interior was molten, or arose later during the long-term evolution is still unclear. Yet, it is clear that water, its abundance, state, and distribution between the different planetary reservoirs, which are intimately related to the solidification and outgassing of the early magma ocean, are key components regarding past and present-day habitability, planetary evolution, and the different pathways leading to various surface conditions. In this chapter we start by reviewing the outcomes of the accretion sequence, with particular emphasis on the sources and timing of water delivery in light of available constraints, and the initial thermal state of Venus at the end of the main accretion. Then, we detail the processes at play during the early thermo-chemical evolution of molten terrestrial planets, and how they can affect the abundance and distribution of water within the different planetary reservoirs. Namely, we focus on the magma ocean cooling, solidification, and concurrent formation of the outgassed atmosphere. Accounting for the possible range of parameters for early Venus and based on the mechanisms and feedbacks described, we provide an overview of the likely evolutionary pathways leading to diverse surface conditions, from a temperate to a hellish early Venus. The implications of the resulting surface conditions and habitability are discussed in the context of the subsequent long-term interior and atmospheric evolution. Future research directions and observations are proposed to constrain the different scenarios in order to reconcile Venus' early evolution with its current state, while deciphering which path it followed.
dc.language.isoen
dc.publisherSpringer Verlag
dc.rights.urihttp://creativecommons.org/licenses/by/
dc.subject.enVenus
dc.subject.enInterior evolution
dc.subject.enAtmosphere
dc.subject.enDegassing
dc.title.enMagma Ocean, Water, and the Early Atmosphere of Venus
dc.typeArticle de revue
dc.identifier.doi10.1007/s11214-023-00995-7
dc.subject.halPlanète et Univers [physics]
bordeaux.journalSpace Science Reviews
bordeaux.page51
bordeaux.volume219
bordeaux.hal.laboratoriesLaboratoire d'Astrophysique de Bordeaux (LAB) - UMR 5804*
bordeaux.institutionUniversité de Bordeaux
bordeaux.institutionCNRS
bordeaux.peerReviewedoui
hal.identifierinsu-04213184
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//insu-04213184v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Space%20Science%20Reviews&rft.date=2023-09-20&rft.volume=219&rft.spage=51&rft.epage=51&rft.eissn=0038-6308&rft.issn=0038-6308&rft.au=SALVADOR,%20Arnaud&AVICE,%20Guillaume&BREUER,%20Doris&GILLMANN,%20C%C3%A9dric&LAMMER,%20Helmut&rft.genre=article


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