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Variation in the dust spectral index across M33

dc.contributor.authorTABATABAEI, Fatemeh S.
hal.structure.identifierFORMATION STELLAIRE 2012
dc.contributor.authorBRAINE, J.
hal.structure.identifierKOSMA, I. Physikalisches Institut
dc.contributor.authorKRAMER, Carsten
dc.contributor.authorXILOURIS, Manolis
hal.structure.identifierObservatoire Astronomique de Marseille Provence [OAMP]
dc.contributor.authorBOQUIEN, Mederic
hal.structure.identifierLaboratoire d'Etude du Rayonnement et de la Matière en Astrophysique [LERMA]
dc.contributor.authorVERLEY, Simon
dc.contributor.authorSCHINNERER, Eva
dc.contributor.authorCALZETTI, Daniela
hal.structure.identifierLaboratoire d'Etude du Rayonnement et de la Matière en Astrophysique [LERMA]
dc.contributor.authorCOMBES, Françoise
dc.contributor.authorISRAEL, Frank
dc.contributor.authorHENKEL, Christian
dc.contributor.authorHENKEL
dc.date.issued2012-08
dc.date.conference2012
dc.identifier.issn1743-9213
dc.description.abstractEnUsing the Herschel PACS and SPIRE FIR/submm data, we investigate variations in the dust spectral index β in the nearby spiral galaxy M33 at a linear resolution of 160 pc. We use an iteration method in two different approaches, single and two-component modified black body models. In both approaches, β is higher in the central disk than in the outer disk similar to the dust temperature. There is a positive correlation between β and Hα as well as with the molecular gas traced by CO(2-1). A Monte-Carlo simulation shows that the physical parameters are better constrained when using the two-component model.
dc.language.isoen
dc.publisherCambridge University Press (CUP)
dc.source.titleIAU Symposium, Volume 284, p. 125-127, 2012 - 5-9 September 2011, Preston, United Kingdom
dc.subject.enInterstellar Medium
dc.subject.enStar formation
dc.subject.enDust
dc.subject.enGalaxies: M33
dc.title.enVariation in the dust spectral index across M33
dc.typeCommunication dans un congrès
dc.identifier.doi10.1017/S1743921312008885
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.arxiv1111.6740
bordeaux.journalProceedings of the International Astronomical Union
bordeaux.page125-127
bordeaux.volume284
bordeaux.conference.titleThe Spectral Energy Distribution of Galaxies
bordeaux.countryGB
bordeaux.title.proceedingIAU Symposium, Volume 284, p. 125-127, 2012 - 5-9 September 2011, Preston, United Kingdom
bordeaux.conference.cityPreston
bordeaux.peerReviewedoui
hal.identifierhal-00822776
hal.version1
hal.invitednon
hal.proceedingsoui
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-00822776v1
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