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dc.contributor.authorTABATABAEI, F. S.
hal.structure.identifierFORMATION STELLAIRE 2011
dc.contributor.authorBRAINE, J.
hal.structure.identifierInstituto de RadioAstronomía Milimétrica [IRAM]
dc.contributor.authorKRAMER, C.
dc.contributor.authorXILOURIS, M.
hal.structure.identifierAstrophysique Interprétation Modélisation [AIM (UMR7158 / UMR_E_9005 / UM_112)]
hal.structure.identifierDepartment of Astronomy
dc.contributor.authorBOQUIEN, M.
hal.structure.identifierDept. fısica Teorica y del Cosmos
dc.contributor.authorVERLEY, S.
dc.contributor.authorSCHINNERER, E.
hal.structure.identifierDepartment of Astronomy
dc.contributor.authorCALZETTI, D.
dc.contributor.authorCOMBES, F.
hal.structure.identifierLeiden Observatory [Leiden]
dc.contributor.authorISRAEL, F.
hal.structure.identifierInstitut für Physik [Potsdam]
dc.contributor.authorHENKEL, C.
dc.contributor.authorTHE HERM33ES TEAM
dc.date.issued2011-11
dc.date.conference2011
dc.description.abstractEnUsing the Herschel PACS and SPIRE FIR/submm data, we investigate variations in the dust spectral index $\beta$ 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, $\beta$ is higher in the central disk than in the outer disk similar to the dust temperature. There is a positive correlation between $\beta$ and Halpha 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.source.titleProceedings IAU Symposium No. 284, 2011, R.J. Tuffs & C.C.Popescu, eds
dc.subject.enAstrophysics
dc.subject.enCosmology and Extragalactic Astrophysics
dc.title.enVariation in the dust spectral index across M33
dc.typeCommunication dans un congrès
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]
bordeaux.page6740
bordeaux.volume1111
bordeaux.conference.titleThe Spectral Energy Distribution of Galaxies
bordeaux.countryGB
bordeaux.title.proceedingProceedings IAU Symposium No. 284, 2011, R.J. Tuffs & C.C.Popescu, eds
bordeaux.conference.cityPreston
bordeaux.peerReviewedoui
hal.identifierhal-00650920
hal.version1
hal.invitednon
hal.proceedingsoui
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-00650920v1
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