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Two Mass Distributions in the L 1641 Molecular Clouds: The Herschel connection of Dense Cores and Filaments in Orion A

dc.contributor.authorPOLYCHRONI, D.
dc.contributor.authorSCHISANO, E.
dc.contributor.authorELIA, D.
hal.structure.identifierMilieux aquatiques, écologie et pollutions [UR MALY]
dc.contributor.authorROY, A.
hal.structure.identifierIstituto di Fisica dello Spazio Interplanetario [IFSI]
dc.contributor.authorMOLINARI, S.
dc.contributor.authorMARTIN, P.
hal.structure.identifierAstrophysique Interprétation Modélisation [AIM (UMR7158 / UMR_E_9005 / UM_112)]
dc.contributor.authorANDRE, Ph.
dc.contributor.authorTURRINI, D.
dc.contributor.authorRYGL, K. L. J.
hal.structure.identifierInstitut de Planétologie et d'Astrophysique de Grenoble [IPAG ]
dc.contributor.authorBENEDETTINI, M.
dc.contributor.authorBUSQUET, G.
hal.structure.identifierforeign laboratories [FL]
dc.contributor.authorDI GIORGIO, A. M.
dc.contributor.authorPESTALOZZI, M.
hal.structure.identifierIstituto di Fisica dello Spazio Interplanetario [IFSI]
dc.contributor.authorPEZZUTO, S.
dc.contributor.authorARZOUMANIAN, D.
hal.structure.identifierFORMATION STELLAIRE 2013
dc.contributor.authorBONTEMPS, Sylvain
hal.structure.identifierHerzberg Institute of Astrophysics
dc.contributor.authorDI FRANCESCO, J.
hal.structure.identifierAstrophysique Interprétation Modélisation [AIM (UMR7158 / UMR_E_9005 / UM_112)]
dc.contributor.authorHENNEMANN, M.
hal.structure.identifierAstrophysique Interprétation Modélisation [AIM (UMR7158 / UMR_E_9005 / UM_112)]
dc.contributor.authorHILL, T.
dc.contributor.authorKONYVES, V.
dc.contributor.authorMENSHCHIKOV, A.
hal.structure.identifierInstitut de Recherches sur les lois Fondamentales de l'Univers [IRFU]
dc.contributor.authorMOTTE, F.
hal.structure.identifierAstrophysique Interprétation Modélisation [AIM (UMR7158 / UMR_E_9005 / UM_112)]
dc.contributor.authorNGUYEN-LUONG, Q.
hal.structure.identifierAstrophysique Interprétation Modélisation [AIM (UMR7158 / UMR_E_9005 / UM_112)]
dc.contributor.authorPERETTO, N.
hal.structure.identifierFORMATION STELLAIRE 2013
dc.contributor.authorSCHNEIDER, N.
hal.structure.identifierSTFC Rutherford Appleton Laboratory [RAL]
dc.contributor.authorWHITE, G.
dc.date.created2013-09-09
dc.date.issued2013
dc.identifier.issn2041-8205
dc.description.abstractEnWe present the Herschel Gould Belt survey maps of the L\,1641 molecular clouds in Orion A. We extracted both the filaments and dense cores in the region. We identified which of dense sources are proto- or pre-stellar, and studied their association with the identified filaments. We find that although most (71%) of the pre-stellar sources are located on filaments there is still a significant fraction of sources not associated with such structures. We find that these two populations (on and off the identified filaments) have distinctly different mass distributions. The mass distribution of the sources on the filaments is found to peak at 4 Solar masses and drives the shape of the CMF at higher masses, which we fit with a power law of the form d$N$/dlog$M \propto M^{-1.4\pm0.4}$. The mass distribution of the sources off the filaments, on the other hand, peaks at 0.8 Solar masses and leads to a flattening of the CMF at masses lower than ~4 Solar masses. We postulate that this difference between the mass distributions is due to the higher proportion of gas that is available in the filaments, rather than in the diffuse cloud.
dc.language.isoen
dc.publisherBristol : IOP Publishing
dc.subject.enAstrophysics
dc.subject.enGalaxy Astrophysics
dc.title.enTwo Mass Distributions in the L 1641 Molecular Clouds: The Herschel connection of Dense Cores and Filaments in Orion A
dc.typeArticle de revue
dc.identifier.doi10.1088/2041-8205/777/2/L33
dc.subject.halPlanète et Univers [physics]/Astrophysique [astro-ph]/Astrophysique stellaire et solaire [astro-ph.SR]
dc.subject.halPhysique [physics]/Astrophysique [astro-ph]/Astrophysique stellaire et solaire [astro-ph.SR]
dc.identifier.arxiv1309.2332
bordeaux.journalThe Astrophysical journal letters
bordeaux.pageid. L33
bordeaux.volume777
bordeaux.issue2
bordeaux.peerReviewedoui
hal.identifierhal-00860927
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-00860927v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=The%20Astrophysical%20journal%20letters&rft.date=2013&rft.volume=777&rft.issue=2&rft.spage=id.%20L33&rft.epage=id.%20L33&rft.eissn=2041-8205&rft.issn=2041-8205&rft.au=POLYCHRONI,%20D.&SCHISANO,%20E.&ELIA,%20D.&ROY,%20A.&MOLINARI,%20S.&rft.genre=article


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