Afficher la notice abrégée

Co-evolution of atmospheres, life, and climate

dc.contributor.authorGRENFELL, John Lee
hal.structure.identifierDLR Institute of Planetary Research
dc.contributor.authorRAUER, Heike
hal.structure.identifierLaboratoire d'Astrophysique de Bordeaux [Pessac] [LAB]
hal.structure.identifierObservatoire aquitain des sciences de l'univers [OASU]
hal.structure.identifierUniversité Sciences et Technologies - Bordeaux 1 [UB]
hal.structure.identifierLaboratoire d'astrodynamique, d'astrophysique et d'aéronomie de bordeaux [L3AB]
dc.contributor.authorSELSIS, Franck
hal.structure.identifierHarvard-Smithsonian Center for Astrophysics [CfA]
dc.contributor.authorKALTENEGGER, Lisa
hal.structure.identifierNASA ExoPlanet Science Institute [NExScI]
dc.contributor.authorBEICHMAN, Charles
hal.structure.identifierNASA Goddard Space Flight Center [GSFC]
dc.contributor.authorDANCHI, William
hal.structure.identifierUniversidad Autónoma de Madrid [UAM]
dc.contributor.authorEIROA, Carlos
hal.structure.identifierResearch and Scientific Support Department, ESTEC [RSSD]
dc.contributor.authorFRIDLUND, Malcolm
hal.structure.identifierMax-Planck-Institut für Astronomie [MPIA]
dc.contributor.authorHENNING, Thomas
hal.structure.identifierMax-Planck-Institut für Astronomie [MPIA]
dc.contributor.authorHERBST, Tom
hal.structure.identifierSpace Research Institute of Austrian Academy of Sciences [IWF]
dc.contributor.authorLAMMER, Helmut
dc.contributor.authorLÉGER, Alain
hal.structure.identifierDepartment of Radio and Space Science [Göteborg]
dc.contributor.authorLISEAU, René
hal.structure.identifierLunar and Planetary Laboratory [Tucson] [LPL]
dc.contributor.authorLUNINE, Jonathan
hal.structure.identifierIstituto Nazionale di Astrofisica [INAF]
dc.contributor.authorPARESCE, Francesco
hal.structure.identifierSTFC Rutherford Appleton Laboratory [RAL]
dc.contributor.authorPENNY, Alan
hal.structure.identifierLandessternwarte Königstuhl [ZAH] [LSW]
dc.contributor.authorQUIRRENBACH, Andreas
hal.structure.identifierLeiden Observatory [Leiden]
dc.contributor.authorRÖTTGERING, Huub
hal.structure.identifierObservatoire de Paris - Site de Meudon [OBSPM]
dc.contributor.authorSCHNEIDER, Jean
hal.structure.identifierSRON Netherlands Institute for Space Research [SRON]
dc.contributor.authorSTAM, Daphne
hal.structure.identifierUniversity College of London [London] [UCL]
dc.contributor.authorTINETTI, Giovanna
hal.structure.identifierSTFC Rutherford Appleton Laboratory [RAL]
hal.structure.identifierDepartment of Physics and Astronomy [Milton Keynes]
dc.contributor.authorWHITE, Glenn J.
dc.date.created2010
dc.date.issued2010
dc.identifier.issn1531-1074
dc.description.abstractEnAfter Earth's origin, our host star, the Sun, was shining 20 to 25 percent less brightly than today. Without greenhouse-like conditions to warm the atmosphere, our early planet would have been an ice ball and life may never have evolved. But life did evolve, which indicates that greenhouse gases must have been present on early Earth to warm the planet. Evidence from the geologic record indicates an abundance of the greenhouse gas CO2. CH4 was probably present as well, and in this regard methanogenic bacteria, which belong to a diverse group of anaerobic procaryotes that ferment CO 2 plus H2 to CH4, may have contributed to modification of the early atmosphere. Molecular oxygen was not present, as is indicated by the study of rocks from that era, which contain iron carbonate rather than iron oxide. Multicellular organisms originated as cells within colonies that became increasingly specialized. The development of photosynthesis allowed the Sun's energy to be harvested directly by life forms. The resultant oxygen accumulated in the atmosphere and formed the ozone layer in the upper atmosphere. Aided by the absorption of harmful UV radiation in the ozone layer, life colonized Earth's surface. Our own planet is a very good example of how life forms modified the atmosphere over the planets' life time. We show that these facts have to be taken into account when we discover and characterize atmospheres of Earth-like exoplanets. If life has originated and evolved on a planet, then it should be expected that a strong co-evolution occurred between life and the atmosphere, the result of which is the planets' climate.
dc.language.isoen
dc.publisherMary Ann Liebert
dc.title.enCo-evolution of atmospheres, life, and climate
dc.typeArticle de revue
dc.identifier.doi10.1089/ast.2009.0375
dc.subject.halPhysique [physics]/Astrophysique [astro-ph]/Planétologie et astrophysique de la terre [astro-ph.EP]
dc.subject.halPlanète et Univers [physics]/Astrophysique [astro-ph]/Planétologie et astrophysique de la terre [astro-ph.EP]
dc.identifier.arxiv1005.3589
bordeaux.journalAstrobiology
bordeaux.page77-88
bordeaux.volume10
bordeaux.issue1
bordeaux.peerReviewedoui
hal.identifierhal-00522608
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-00522608v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Astrobiology&rft.date=2010&rft.volume=10&rft.issue=1&rft.spage=77-88&rft.epage=77-88&rft.eissn=1531-1074&rft.issn=1531-1074&rft.au=GRENFELL,%20John%20Lee&RAUER,%20Heike&SELSIS,%20Franck&KALTENEGGER,%20Lisa&BEICHMAN,%20Charles&rft.genre=article


Fichier(s) constituant ce document

FichiersTailleFormatVue

Il n'y a pas de fichiers associés à ce document.

Ce document figure dans la(les) collection(s) suivante(s)

Afficher la notice abrégée