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Detection of a high-mass prestellar core candidate in W43-MM1

hal.structure.identifierInstitut de Planétologie et d'Astrophysique de Grenoble [IPAG]
dc.contributor.authorNONY, T.
hal.structure.identifierStorengy France
dc.contributor.authorLOUVET, F.
hal.structure.identifierInstitut de Recherches sur les lois Fondamentales de l'Univers [IRFU]
dc.contributor.authorMOTTE, F.
dc.contributor.authorMOLET, J.
dc.contributor.authorMARSH, K.
hal.structure.identifierAMOR 2018
dc.contributor.authorCHAPILLON, E.
hal.structure.identifierLaboratoire d'Etude du Rayonnement et de la Matière en Astrophysique [LERMA]
dc.contributor.authorGUSDORF, A.
hal.structure.identifierFORMATION STELLAIRE 2018
dc.contributor.authorBROUILLET, N.
hal.structure.identifierFORMATION STELLAIRE 2018
dc.contributor.authorBONTEMPS, Sylvain
hal.structure.identifierAstrophysique Interprétation Modélisation [AIM (UMR7158 / UMR_E_9005 / UM_112)]
dc.contributor.authorCSENGERI, T.
hal.structure.identifierFORMATION STELLAIRE 2018
dc.contributor.authorDESPOIS, D.
hal.structure.identifierNational Astronomical Observatory of Japan [NAOJ]
dc.contributor.authorLUONG, Q. Nguyen
dc.contributor.authorDUARTE-CABRAL, A.
hal.structure.identifierAstrophysique Interprétation Modélisation [AIM (UMR7158 / UMR_E_9005 / UM_112)]
dc.contributor.authorMAURY, A.
dc.date.issued2018-10
dc.identifier.issn0004-6361
dc.description.abstractEnAims. To constrain the physical processes that lead to the birth of high-mass stars it is mandatory to study the very first stages of their formation. We search for high-mass analogs of low-mass prestellar cores in W43-MM1.Methods. We conducted a 1.3 mm ALMA mosaic of the complete W43-MM1 cloud, which has revealed numerous cores with ~2000 au FWHM sizes. We investigated the nature of cores located at the tip of the main filament, where the clustering is minimum. We used the continuum emission to measure the core masses and the 13CS(5-4) line emission to estimate their turbulence level. We also investigated the prestellar or protostellar nature of these cores by searching for outflow signatures traced by CO(2-1) and SiO(5-4) line emission, and for molecular complexity typical of embedded hot cores.Results. Two high-mass cores of ~1300 au diameter and ~60 M⊙ mass are observed to be turbulent but gravitationally bound. One drives outflows and is associated with a hot core. The other core, W43-MM1#6, does not yet reveal any star formation activity and thus is an excellent high-mass prestellar core candidate.
dc.language.isoen
dc.publisherEDP Sciences
dc.subject.enstars: formation
dc.subject.enstars: protostars
dc.subject.enstars: massive
dc.subject.ensubmillimeter: ISM
dc.subject.enISM: clouds
dc.title.enDetection of a high-mass prestellar core candidate in W43-MM1
dc.typeArticle de revue
dc.identifier.doi10.1051/0004-6361/201833863
dc.subject.halPhysique [physics]/Astrophysique [astro-ph]
dc.identifier.arxiv1810.01404
bordeaux.journalAstronomy and Astrophysics - A&A
bordeaux.pageL5
bordeaux.volume618
bordeaux.peerReviewedoui
hal.identifierhal-01901642
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01901642v1
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