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Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/46438
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dc.contributor.authorBarreiro, R. Belén-
dc.contributor.authorHerranz, D.-
dc.contributor.authorLópez-Caniego, M.-
dc.contributor.authorMartínez-González, Enrique-
dc.contributor.authorVielva, Patricio-
dc.date.accessioned2012-03-01T10:47:11Z-
dc.date.available2012-03-01T10:47:11Z-
dc.date.issued2011-12-
dc.identifier.citationAstronomy and Astrophysics 536: A16 (2011)es_ES
dc.identifier.issn0004-6361-
dc.identifier.urihttp://hdl.handle.net/10261/46438-
dc.description16 páginas, 14 figuras, 1 tabla.-- Planck Collaboration: et al.es_ES
dc.description.abstractTheall-sky coverage of the Planck Early Release Compact Source Catalogue (ERCSC) provides an unsurpassed survey of galaxies at submillimetre (submm) wavelengths, representing a major improvement in the numbers of galaxies detected, as well as the range of far-IR/submm wavelengths over which they have been observed. We here present the first results on the properties of nearby galaxies using these data. We match the ERCSC catalogue to IRAS-detected galaxies in the Imperial IRAS Faint Source Redshift Catalogue (IIFSCz), so that we can measure the spectral energy distributions (SEDs) of these objects from 60 to 850μm. This produces a list of 1717 galaxies with reliable associations between Planck and IRAS, from which we select a subset of 468 for SED studies, namely those with strong detections in the three highest frequency Planck bands and no evidence of cirrus contamination. The SEDs are fitted using parametric dust models to determine the range of dust temperatures and emissivities. We find evidence for colder dust than has previously been found in external galaxies, with T < 20K. Such cold temperatures are found using both the standard single temperature dust model with variable emissivity β, or a two dust temperature model with β fixed at 2. We also compare our results to studies of distant submm galaxies (SMGs) which have been claimed to contain cooler dust than their local counterparts. We find that including our sample of 468 galaxies significantly reduces the distinction between the two populations. Fits to SEDs of selected objects using more sophisticated templates derived from radiative transfer models confirm the presence of the colder dust found through parametric fitting. We thus conclude that cold (T < 20K) dust is a significant and largely unexplored component of many nearby galaxies.es_ES
dc.description.sponsorshipThe Planck Collaboration acknowledges the support of: ESA; CNES and CNRS/INSU-IN2P3-INP (France); ASI, CNR, and INAF (Italy); NASA and DoE (USA); STFC and UKSA (UK); CSIC, MICINN and JA (Spain); Tekes, AoF and CSC (Finland); DLR and MPG (Germany); CSA (Canada); DTU Space (Denmark); SER/SSO (Switzerland); RCN (Norway); SFI (Ireland); FCT/MCTES (Portugal); and DEISA (EU).es_ES
dc.language.isoenges_ES
dc.publisherEDP Scienceses_ES
dc.rightsopenAccesses_ES
dc.subjectGalaxies: photometryes_ES
dc.subjectSubmillimeter: galaxieses_ES
dc.subjectInfrared: galaxieses_ES
dc.subjectGalaxies: ISMes_ES
dc.titlePlanck early results. XVI. The Planck view of nearby galaxieses_ES
dc.typeartículoes_ES
dc.identifier.doi10.1051/0004-6361/201116454-
dc.description.peerreviewedPeer reviewedes_ES
dc.relation.publisherversionhttp://dx.doi.org/10.1051/0004-6361/201116454es_ES
dc.identifier.e-issn1432-0746-
dc.type.coarhttp://purl.org/coar/resource_type/c_6501es_ES
item.languageiso639-1en-
item.fulltextWith Fulltext-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.cerifentitytypePublications-
item.grantfulltextopen-
item.openairetypeartículo-
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