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Unveiling the chemistry of hot protostellar cores with ALMA

hal.structure.identifierInstitut de RadioAstronomie Millimétrique [IRAM]
dc.contributor.authorGUÉLIN, M.
hal.structure.identifierLaboratoire d'astrodynamique, d'astrophysique et d'aéronomie de bordeaux [L3AB]
hal.structure.identifierObservatoire aquitain des sciences de l'univers [OASU]
hal.structure.identifierLaboratoire d'Astrophysique de Bordeaux [Pessac] [LAB]
dc.contributor.authorBROUILLET, N.
hal.structure.identifierCentro de Investigaciones Biológicas [CSIC]
hal.structure.identifierDepartamento de Astrofísica Molecular e Infrarroja [DAMIR]
dc.contributor.authorCERNICHARO, J.
hal.structure.identifierLaboratoire d'Etude du Rayonnement et de la Matière en Astrophysique [LERMA]
hal.structure.identifierDepartement de Radioastronomie Millimétrique [DEMIRM]
hal.structure.identifierInstitut de biologie de l'Ecole Normale Supérieure [IBENS]
dc.contributor.authorCOMBES, F.
dc.contributor.authorWOOTEN, A.
dc.date.issued2008
dc.identifier.issn0004-640X
dc.description.abstractEnHigh angular resolution mm-wave observations of the Orion-KL region, made with the IRAM Plateau de Bure interferometer (PdBI), reveal the presence of several cores of size 103 AU, which have distinct spectral signatures. Complex molecules such as ethanol, vinyl cyanide and dimethyl ether show different distributions and their relative abundance varies from core to core by orders of magnitude. The molecular column densities derived in the cores also differ widely from the beam-averaged column densities observed with large single-dish telescopes. Obviously, the predictions of hot core chemistry models must be checked against high resolution observations. ALMA, which allies sensitivity and high angular resolution, will be a key instrument for this type of studies. The PdBI observations were part of a search for interstellar glycine, also carried out with the IRAM 30-m telescope and the Green Bank Telescope. We derive a 3 ? upper limit on the column density of glycine of 1×1015 cm?2 per 2?×3? beam in the Orion Hot Core and Compact Ridge.
dc.language.isoen
dc.publisherSpringer Verlag
dc.subject.enAstrochemistry
dc.subject.enAstrobiology
dc.subject.enLine: identification
dc.subject.enMolecular processes
dc.subject.enTechniques: high angular resolution
dc.subject.enISM: abundances
dc.title.enUnveiling the chemistry of hot protostellar cores with ALMA
dc.typeArticle de revue
dc.identifier.doi10.1007/S10509-007-9684-4
dc.subject.halPhysique [physics]/Astrophysique [astro-ph]/Cosmologie et astrophysique extra-galactique [astro-ph.CO]
dc.subject.halPlanète et Univers [physics]/Astrophysique [astro-ph]
bordeaux.journalAstrophysics and Space Science
bordeaux.page45-51
bordeaux.volume313
bordeaux.peerReviewedoui
hal.identifierhal-00265503
hal.version1
hal.popularnon
hal.audienceNon spécifiée
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-00265503v1
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