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The physical properties of the dust in the RCW 120 HII region as seen by Herschel

hal.structure.identifierLaboratoire d'Astrophysique de Marseille [LAM]
dc.contributor.authorANDERSON, L. D.
hal.structure.identifierLaboratoire d'Astrophysique de Marseille [LAM]
hal.structure.identifierObservatoire Astronomique de Marseille Provence [OAMP]
dc.contributor.authorZAVAGNO, Annie
dc.contributor.authorRODON, J. A.
hal.structure.identifierLaboratoire d'Astrophysique de Marseille [LAM]
dc.contributor.authorRUSSEIL, D.
hal.structure.identifierInstitut d'astrophysique spatiale [IAS]
dc.contributor.authorABERGEL, A.
dc.contributor.authorADE, P.
hal.structure.identifierLaboratoire d'Informatique de Nantes Atlantique [LINA]
dc.contributor.authorANDRE, P.
dc.contributor.authorARAB, H.
hal.structure.identifierLaboratoire d'Astrophysique de Marseille [LAM]
dc.contributor.authorBALUTEAU, J. -P.
dc.contributor.authorBERNARD, J. -P.
dc.contributor.authorBLAGRAVE, K.
hal.structure.identifierInstitut d'astrophysique spatiale [IAS]
dc.contributor.authorBOULANGER, F.
dc.contributor.authorCOHEN, M.
dc.contributor.authorCOMPIEGNE, M.
dc.contributor.authorCOX, P.
hal.structure.identifierInstitut d'astrophysique spatiale [IAS]
dc.contributor.authorDARTOIS, E.
hal.structure.identifierDepartment of Ecology and Evolutionary Biology [Princeton]
dc.contributor.authorDAVIS, G.
dc.contributor.authorEMERY, R.
dc.contributor.authorFULTON, T.
hal.structure.identifierLaboratoire d'Astrophysique de Marseille [LAM]
dc.contributor.authorGRY, C.
hal.structure.identifierInstitut d'astrophysique spatiale [IAS]
dc.contributor.authorHABART, E.
hal.structure.identifierNational Astronomical Observatories [Beijing] [NAOC]
dc.contributor.authorHUANG, M.
hal.structure.identifierCentre d'étude spatiale des rayonnements [CESR]
dc.contributor.authorJOBLIN, C.
dc.contributor.authorJONES, S. C.
hal.structure.identifierSchool of Physics and Astronomy [Cardiff]
dc.contributor.authorKIRK, J.
hal.structure.identifierInstitut d'astrophysique spatiale [IAS]
dc.contributor.authorLAGACHE, Guilaine
hal.structure.identifierLaboratoire de Probabilités et Modèles Aléatoires [LPMA]
dc.contributor.authorLIM, T.
hal.structure.identifierDépartement d'Astrophysique, de physique des Particules, de physique Nucléaire et de l'Instrumentation Associée [DAPNIA]
dc.contributor.authorMADDEN, S.
dc.contributor.authorMAKIWA, G.
hal.structure.identifierCITA
dc.contributor.authorMARTIN, P.
hal.structure.identifierInstitut d'astrophysique spatiale [IAS]
dc.contributor.authorMIVILLE-DESCHENES, M. -A.
hal.structure.identifierIstituto di Fisica dello Spazio Interplanetario [IFSI]
dc.contributor.authorMOLINARI, S.
dc.contributor.authorMOSELEY, H.
hal.structure.identifierAstrophysique Interprétation Modélisation [AIM (UMR7158 / UMR_E_9005 / UM_112)]
hal.structure.identifierInstitut de Recherches sur les lois Fondamentales de l'Univers [IRFU]
dc.contributor.authorMOTTE, F.
dc.contributor.authorNAYLOR, D. A.
dc.contributor.authorOKUMURA, K.
dc.contributor.authorGOCALVEZ, D. Pinheiro
dc.contributor.authorPOLEHAMPTON, E.
hal.structure.identifierIstituto di Fisica dello Spazio Interplanetario [IFSI]
dc.contributor.authorSARACENO, P.
dc.contributor.authorSIDHER, S.
dc.contributor.authorSPENCER, L.
dc.contributor.authorSWINYARD, B.
hal.structure.identifierSchool of Physics and Astronomy [Cardiff]
dc.contributor.authorWARD-THOMPSON, D.
hal.structure.identifierEngineering Department
dc.contributor.authorWHITE, G. J.
hal.structure.identifierLaboratoire d'Astrophysique de Bordeaux [Pessac] [LAB]
hal.structure.identifierObservatoire aquitain des sciences de l'univers [OASU]
hal.structure.identifierUniversité Sciences et Technologies - Bordeaux 1 [UB]
hal.structure.identifierLaboratoire d'astrodynamique, d'astrophysique et d'aéronomie de bordeaux [L3AB]
dc.contributor.authorBONTEMPS, Sylvain
dc.date.created2010-05-10
dc.date.issued2010
dc.identifier.issn0004-6361
dc.description.abstractEnContext. RCW 120 is a well-studied, nearby Galactic HII region with ongoing star formation in its surroundings. Previous work has shown that it displays a bubble morphology at mid-infrared wavelengths and has a massive layer of collected neutral material seen at sub-mm wavelengths. Given the well-defined photo-dissociation region (PDR) boundary and collected layer, it is an excellent laboratory to study the "collect and collapse" process of triggered star formation. Using Herschel Space Observatory data at 100, 160, 250, 350, and 500 micron, in combination with Spitzer and APEX-LABOCA data, we can for the first time map the entire spectral energy distribution of an HII region at high angular resolution. Aims. We seek a better understanding of RCW120 and its local environment by analysing its dust temperature distribution. Additionally, we wish to understand how the dust emissivity index, beta, is related to the dust temperature. Methods. We determine dust temperatures in selected regions of the RCW 120 field by fitting their spectral energy distribution (SED), derived using aperture photometry. Additionally, we fit the SED extracted from a grid of positions to create a temperature map. Results. We find a gradient in dust temperature, ranging from >30 K in the interior of RCW 120, to ~20K for the material collected in the PDR, to ~10K toward local infrared dark clouds and cold filaments. Our results suggest that RCW 120 is in the process of destroying the PDR delineating its bubble morphology. The leaked radiation from its interior may influence the creation of the next generation of stars. We find support for an anti-correlation between the fitted temperature and beta, in rough agreement with what has been found previously. The extended wavelength coverage of the Herschel data greatly increases the reliability of this result.
dc.language.isoen
dc.publisherEDP Sciences
dc.title.enThe physical properties of the dust in the RCW 120 HII region as seen by Herschel
dc.typeArticle de revue
dc.identifier.doi10.1051/0004-6361/201014657
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.arxiv1005.1565
bordeaux.journalAstronomy and Astrophysics - A&A
bordeaux.pageL99
bordeaux.volume518
bordeaux.peerReviewedoui
hal.identifierhal-00523445
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-00523445v1
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