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Ethyl alcohol and sugar in comet C/2014Q2 (Lovejoy)

hal.structure.identifierLaboratoire d'études spatiales et d'instrumentation en astrophysique [LESIA]
dc.contributor.authorBIVER, Nicolas,
hal.structure.identifierLaboratoire d'études spatiales et d'instrumentation en astrophysique [LESIA]
dc.contributor.authorBOCKELÉE-MORVAN, Dominique,
hal.structure.identifierLaboratoire d'études spatiales et d'instrumentation en astrophysique [LESIA]
dc.contributor.authorMORENO, Raphaël,
hal.structure.identifierLaboratoire d'études spatiales et d'instrumentation en astrophysique [LESIA]
dc.contributor.authorCROVISIER, Jacques,
hal.structure.identifierLaboratoire d'études spatiales et d'instrumentation en astrophysique [LESIA]
dc.contributor.authorCOLOM, Pierre,
hal.structure.identifierLaboratoire d'Etude du Rayonnement et de la Matière en Astrophysique [LERMA]
dc.contributor.authorLIS, Dariusz C.,
dc.contributor.authorSANDQVIST, Aage,
hal.structure.identifierInstitut de RadioAstronomie Millimétrique [IRAM]
dc.contributor.authorBOISSIER, Jérémie,
hal.structure.identifierFORMATION STELLAIRE 2015
dc.contributor.authorDESPOIS, D.
hal.structure.identifierNASA Goddard Space Flight Center [GSFC]
dc.contributor.authorMILAM, Stefanie N.,
dc.date.issued2015-11
dc.identifier.issn2375-2548
dc.description.abstractEnThe presence of numerous complex organic molecules (COMs; defined as those containing six or more atoms) around protostars shows that star formation is accompanied by an increase of molecular complexity. These COMs may be part of the material from which planetesimals and, ultimately, planets formed. Comets represent some of the oldest and most primitive material in the solar system, including ices, and are thus our best window into the volatile composition of the solar protoplanetary disk. Molecules identified to be present in cometary ices include water, simple hydrocarbons, oxygen, sulfur, and nitrogen-bearing species, as well as a few COMs, such as ethylene glycol and glycine. We report the detection of 21 molecules in comet C/2014 Q2 (Lovejoy), including the first identification of ethyl alcohol (ethanol, C2H5OH) and the simplest monosaccharide sugar glycolaldehyde (CH2OHCHO) in a comet. The abundances of ethanol and glycolaldehyde, respectively 5 and 0.8% relative to methanol (0.12 and 0.02% relative to water), are somewhat higher than the values measured in solar- type protostars. Overall, the high abundance of COMs in cometary ices supports the formation through grain-surface reactions in the solar system protoplanetary disk.
dc.language.isoen
dc.publisherAmerican Association for the Advancement of Science (AAAS)
dc.rights.urihttp://creativecommons.org/licenses/by-nc/
dc.title.enEthyl alcohol and sugar in comet C/2014Q2 (Lovejoy)
dc.typeArticle de revue
dc.identifier.doi10.1126/sciadv.1500863
dc.subject.halPlanète et Univers [physics]/Astrophysique [astro-ph]/Astrophysique galactique [astro-ph.GA]
dc.identifier.arxiv1511.04999
bordeaux.journalScience Advances
bordeaux.pageScience Advances, Vol. 1, No. 9, id.1500863
bordeaux.volume1
bordeaux.peerReviewedoui
hal.identifierhal-01239059
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01239059v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Science%20Advances&rft.date=2015-11&rft.volume=1&rft.spage=Science%20Advances,%20Vol.%201,%20No.%209,%20id.1500863&rft.epage=Science%20Advances,%20Vol.%201,%20No.%209,%20id.1500863&rft.eissn=2375-2548&rft.issn=2375-2548&rft.au=BIVER,%20Nicolas,&BOCKEL%C3%89E-MORVAN,%20Dominique,&MORENO,%20Rapha%C3%ABl,&CROVISIER,%20Jacques,&COLOM,%20Pierre,&rft.genre=article


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