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First Detection of the Simplest Organic Acid in a Protoplanetary Disk

dc.contributor.authorFAVRE, Cécile
dc.contributor.authorFEDELE, Davide
hal.structure.identifierA.N. Severtsov Institute of Ecology and Evolution
dc.contributor.authorSEMENOV, Dmitry
dc.contributor.authorPARFENOV, Sergey
hal.structure.identifierINAF - Osservatorio Astronomico di Brera [OAB]
dc.contributor.authorCODELLA, Claudio
hal.structure.identifierInstitut de Planétologie et d'Astrophysique de Grenoble [IPAG]
dc.contributor.authorCECCARELLI, Cecilia
hal.structure.identifierHarvard-Smithsonian Center for Astrophysics [CfA]
dc.contributor.authorBERGIN, Edwin
hal.structure.identifierAMOR 2018
dc.contributor.authorCHAPILLON, E.
hal.structure.identifierINAF - Osservatorio Astrofisico di Arcetri [OAA]
dc.contributor.authorTESTI, Leonardo
hal.structure.identifierECLIPSE 2018
dc.contributor.authorHERSANT, F.
hal.structure.identifierInstitut de Planétologie et d'Astrophysique de Grenoble [IPAG]
dc.contributor.authorLEFLOCH, Bertrand
hal.structure.identifierINAF - Osservatorio Astronomico di Brera [OAB]
dc.contributor.authorFONTANI, Francesco
dc.contributor.authorBLAKE, Geoffrey
dc.contributor.authorCLEEVES, L. Ilsedore
hal.structure.identifierHarvard-Smithsonian Center for Astrophysics [CfA]
dc.contributor.authorQI, Chunhua
dc.contributor.authorSCHWARZ, Kamber
hal.structure.identifierUniversiteit Leiden = Leiden University
dc.contributor.authorTAQUET, Vianney
dc.date.issued2018-07-20
dc.identifier.issn2041-8205
dc.description.abstractEnThe formation of asteroids, comets, and planets occurs in the interior of protoplanetary disks during the early phase of star formation. Consequently, the chemical composition of the disk might shape the properties of the emerging planetary system. In this context, it is crucial to understand whether and what organic molecules are synthesized in the disk. In this Letter, we report the first detection of formic acid (HCOOH) toward the TW Hydrae protoplanetary disk. The observations of the trans-HCOOH 6(1,6)-5(1,5) transition were carried out at 129 GHz with Atacama Large Millimeter/Submillimeter Array (ALMA). We measured a disk-averaged gas-phase t-HCOOH column density of ˜(2-4) × 1012 cm-2, namely as large as that of methanol. HCOOH is the first organic molecule containing two oxygen atoms detected in a protoplanetary disk, a proof that organic chemistry is very active, albeit difficult to observe, in these objects. Specifically, this simplest acid stands as the basis for synthesis of more complex carboxylic acids used by life on Earth.This Letter makes use of the following ALMA data: ADS/JAO.ALMA#2015.1.00845.S (PI C. Favre). ALMA is a partnership of ESO (representing its member states), NSF (USA) and NINS (Japan), together with NRC (Canada), NSC and ASIAA (Taiwan), and KASI (Republic of Korea), in cooperation with the Republic of Chile. The Joint ALMA Observatory is operated by ESO, AUI/NRAO and NAOJ.
dc.language.isoen
dc.publisherBristol : IOP Publishing
dc.title.enFirst Detection of the Simplest Organic Acid in a Protoplanetary Disk
dc.typeArticle de revue
dc.identifier.doi10.3847/2041-8213/aad046
dc.subject.halPlanète et Univers [physics]/Astrophysique [astro-ph]/Cosmologie et astrophysique extra-galactique [astro-ph.CO]
dc.subject.halPlanète et Univers [physics]/Astrophysique [astro-ph]/Planétologie et astrophysique de la terre [astro-ph.EP]
dc.identifier.arxiv1807.05768
bordeaux.journalThe Astrophysical journal letters
bordeaux.pageid. L2
bordeaux.volume862
bordeaux.issue1
bordeaux.peerReviewedoui
hal.identifierhal-01868883
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01868883v1
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