Afficher la notice abrégée

PACS and SPIRE photometer maps of M33: First results of the Herschel M33 extended survey (HERM33ES)

hal.structure.identifierInstituto de RadioAstronomía Milimétrica [IRAM]
dc.contributor.authorKRAMER, C.
hal.structure.identifierInstituto de RadioAstronomía Milimétrica [IRAM]
dc.contributor.authorBUCHBENDER, C.
dc.contributor.authorXILOURIS, E. M.
hal.structure.identifierAstrophysique Interprétation Modélisation [AIM (UMR7158 / UMR_E_9005 / UM_112)]
hal.structure.identifierDepartment of Astronomy
dc.contributor.authorBOQUIEN, M.
hal.structure.identifierObservatoire aquitain des sciences de l'univers [OASU]
hal.structure.identifierLaboratoire d'Astrophysique de Bordeaux [Pessac] [LAB]
hal.structure.identifierUniversité Sciences et Technologies - Bordeaux 1 [UB]
hal.structure.identifierLaboratoire d'astrodynamique, d'astrophysique et d'aéronomie de bordeaux [L3AB]
dc.contributor.authorBRAINE, J.
hal.structure.identifierDepartment of Astronomy
dc.contributor.authorCALZETTI, D.
dc.contributor.authorLORD, S.
hal.structure.identifierKOSMA, I. Physikalisches Institut
dc.contributor.authorMOOKERJEA, B.
hal.structure.identifierInstituto de RadioAstronomía Milimétrica [IRAM]
dc.contributor.authorQUINTANA-LACACI, G.
hal.structure.identifierDpto. Fisica Teorica y del Cosmos
dc.contributor.authorRELANO, M.
dc.contributor.authorSTACEY, G.
dc.contributor.authorTABATABAEI, F. S.
hal.structure.identifierDept. fısica Teorica y del Cosmos
dc.contributor.authorVERLEY, S.
dc.contributor.authorAALTO, S.
dc.contributor.authorAKRAS, S.
hal.structure.identifierInstitute of Physics, Berlin
dc.contributor.authorALBRECHT, M.
dc.contributor.authorANDERL, S.
dc.contributor.authorBECK, R.
hal.structure.identifierMax-Planck-Institut für Radioastronomie [MPIFR]
dc.contributor.authorBERTOLDI, F.
hal.structure.identifierLaboratoire d'Etude du Rayonnement et de la Matière en Astrophysique [LERMA]
dc.contributor.authorCOMBES, F.
dc.contributor.authorDUMKE, M.
hal.structure.identifierObservatorio Astronomico Nacional, Madrid
dc.contributor.authorGARCIA-BURILLO, S.
hal.structure.identifierFundación Venezolana de Investigaciones Sismológicas [FUNVISIS]
hal.structure.identifierInstituto de Ciencias de la Tierra
dc.contributor.authorGONZALEZ, M.
hal.structure.identifierObservatoire aquitain des sciences de l'univers [OASU]
hal.structure.identifierLaboratoire d'Astrophysique de Bordeaux [Pessac] [LAB]
hal.structure.identifierUniversité Sciences et Technologies - Bordeaux 1 [UB]
hal.structure.identifierLaboratoire d'astrodynamique, d'astrophysique et d'aéronomie de bordeaux [L3AB]
dc.contributor.authorGRATIER, P.
dc.contributor.authorGUEUSTEN, R.
hal.structure.identifierInstitut für Physik [Potsdam]
dc.contributor.authorHENKEL, Carsten
dc.contributor.authorISRAEL, F. P.
hal.structure.identifierAustralia Telescope National Facility
dc.contributor.authorKORIBALSKI, B.
dc.contributor.authorLUNDGREN, A.
dc.contributor.authorMARTIN-PINTADO, J.
hal.structure.identifierKOSMA,
dc.contributor.authorROELLIG, M.
hal.structure.identifierUniversity of British Columbia [UBC]
dc.contributor.authorROSOLOWSKY, E.
hal.structure.identifierInstitut de RadioAstronomie Millimétrique [IRAM]
dc.contributor.authorSCHUSTER, K. F.
hal.structure.identifierSpitzer Science Center, California Institute of Technology, Pasadena
dc.contributor.authorSHETH, K.
dc.contributor.authorSIEVERS, A.
dc.contributor.authorSTUTZKI, J.
dc.contributor.authorTILANUS, R. P. J.
dc.contributor.authorVAN DER TAK, F.
dc.contributor.authorVAN DER WERF, P.
dc.contributor.authorWIEDNER, M. C.
dc.date.created2010-05-14
dc.date.issued2010
dc.identifier.issn0004-6361
dc.description.abstractEnWithin the framework of the HERM33ES key project, we are studying the star forming interstellar medium in the nearby, metal-poor spiral galaxy M33, exploiting the high resolution and sensitivity of Herschel. We use PACS and SPIRE maps at 100, 160, 250, 350, and 500 micron wavelength, to study the variation of the spectral energy distributions (SEDs) with galacto-centric distance. Detailed SED modeling is performed using azimuthally averaged fluxes in elliptical rings of 2 kpc width, out to 8 kpc galacto-centric distance. Simple isothermal and two-component grey body models, with fixed dust emissivity index, are fitted to the SEDs between 24 and 500 micron using also MIPS/Spitzer data, to derive first estimates of the dust physical conditions. The far-infrared and submillimeter maps reveal the branched, knotted spiral structure of M33. An underlying diffuse disk is seen in all SPIRE maps (250-500 micron). Two component fits to the SEDs agree better than isothermal models with the observed, total and radially averaged flux densities. The two component model, with beta fixed at 1.5, best fits the global and the radial SEDs. The cold dust component clearly dominates; the relative mass of the warm component is less than 0.3% for all the fits. The temperature of the warm component is not well constrained and is found to be about 60K plus/minus 10K. The temperature of the cold component drops significantly from about 24K in the inner 2 kpc radius to 13K beyond 6 kpc radial distance, for the best fitting model. The gas-to-dust ratio for beta=1.5, averaged over the galaxy, is higher than the solar value by a factor of 1.5 and is roughly in agreement with the subsolar metallicity of M33.
dc.language.isoen
dc.publisherEDP Sciences
dc.subject.enAstrophysics
dc.subject.enCosmology and Extragalactic Astrophysics
dc.title.enPACS and SPIRE photometer maps of M33: First results of the Herschel M33 extended survey (HERM33ES)
dc.typeArticle de revue
dc.identifier.doi10.1051/0004-6361/201014613
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.arxiv1005.2563
bordeaux.journalAstronomy and Astrophysics - A&A
bordeaux.pageL67
bordeaux.volume518
bordeaux.peerReviewedoui
hal.identifierhal-00495852
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-00495852v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Astronomy%20and%20Astrophysics%20-%20A&A&rft.date=2010&rft.volume=518&rft.spage=L67&rft.epage=L67&rft.eissn=0004-6361&rft.issn=0004-6361&rft.au=KRAMER,%20C.&BUCHBENDER,%20C.&XILOURIS,%20E.%20M.&BOQUIEN,%20M.&BRAINE,%20J.&rft.genre=article


Fichier(s) constituant ce document

FichiersTailleFormatVue

Il n'y a pas de fichiers associés à ce document.

Ce document figure dans la(les) collection(s) suivante(s)

Afficher la notice abrégée