J/A+A/476/1161ivo://CDS.VizieR/J/A+A/476/1161doi:10.26093/cds/vizier.34761161CDSVerley S.Hunt L.K.Corbelli E.Giovanardi C.2008-03-30T22:33:15Z2008-03-30T22:30:09ZCDS support team

CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France

cds-question@unistra.frgalaxiesinfrared-photometryCombining the relative vicinity of the Local Group spiral galaxy M33 with the Spitzer images, we investigate the properties of infrared (IR) emission sites and assess the reliability of the IR emission as a star formation tracer. The mid- and far-IR emission of M33 was obtained from IRAC and MIPS images from the Spitzer archive. We compared the photometric results for several samples of three known types of discrete sources (HII regions, supernovae remnants and planetary nebulae) with theoretical diagnostic diagrams, and derived the spectral energy distribution (from 3.6 to 24{mu}m) of each type of object. Moreover, we generated a catalogue of 24{mu}m sources and inferred their nature from the observed and theoretical colours of the known type sources. We estimated the star formation rate in M33 both globally and locally, from the IR emission and from the Halpha emission line.2007A&A...476.1161Vhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/476/1161CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/AJ/110/2739 : H-alpha emitting regions in M33 (Calzetti+ 1995)J/A+A/426/11 : XMM-Newton survey of M33 (Pietsch+, 2004)J/A+A/448/1247 : XMM-Newton survey of M33 (Misanovic+, 2006)J/AJ/131/2478 : M31 and M33 UBVRI photometry (Massey+, 2006)J/A+A/472/785 : Radio continuum survey of M33 (Tabatabaei+, 2007)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/476/1161https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/476/1161http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/476/1161https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/476/1161https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/476/1161http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/476/1161GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/476/1161/table2 (Photometry of known type sources)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/476/1161/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/476/1161/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/476/1161/table2?GETtext/xml+votable180.050000true23.497083330.5970.005555555555555556Cone search capability for table J/A+A/476/1161/table3 (Photometry of 24{mu}m sources)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/476/1161/table3?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/476/1161/table3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/476/1161/table3?GETtext/xml+votable180.050000true23.3749766730.309910560.0055555555555555566/2154-2155 2240-2241https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/476/1161?format=asciiInfrareddefaultJ/A+A/476/1161/table2Photometry of known type sourcesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordint[VHC2007b]Source namemeta.id;meta.maincharRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.mainF3.5umFlux density at 3.6ummJyphot.flux.density;em.IR.3-4umfloate_F3.5umrms uncertainty on F3.5ummJystat.errorfloatF4.5umFlux density at 4.5ummJyphot.flux.density;em.IR.4-8umfloate_F4.5umrms uncertainty on F4.5ummJystat.errorfloatF5.8umFlux density at 5.8ummJyphot.flux.density;em.IR.4-8umfloate_F5.8umrms uncertainty on F5.8ummJystat.errorfloatF8.0umFlux density at 8.0ummJyphot.flux.density;em.IR.8-15umfloate_F8.0umrms uncertainty on F8.0ummJystat.errorfloatF24um? Flux density at 24um (1)mJyphot.flux.density;em.IR.15-30umdoublenullablee_F24um? rms uncertainty on F24ummJystat.errorfloatnullableFHa? Halpha flux density (1)1e-17W.m**-2phot.flux;em.line.Halphafloatnullablee_FHa? rms uncertainty on FHa1e-17W.m**-2stat.errorfloatnullableJ/A+A/476/1161/table3Photometry of 24{mu}m sourcesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeqSequential number, [VHC2007b] IR NNN in Simbadmeta.recordintRAJ2000Right ascension in decimal degrees (J2000)degpos.eq.ra;meta.mainDEJ2000Declination in decimal degrees (J2000)degpos.eq.dec;meta.mainF3.5um? Flux density at 3.6um (1)mJyphot.flux.density;em.IR.3-4umfloatnullablee_F3.5um? rms uncertainty on F3.5ummJystat.errorfloatnullableF4.5um? Flux density at 4.5um (1)mJyphot.flux.density;em.IR.4-8umfloatnullablee_F4.5um? rms uncertainty on F4.5ummJystat.errorfloatnullableF5.8um? Flux density at 5.8um (1)mJyphot.flux.density;em.IR.4-8umfloatnullablee_F5.8um? rms uncertainty on F5.8ummJystat.errorfloatnullableF8.0um? Flux density at 8.0um (1)mJyphot.flux.density;em.IR.8-15umfloatnullablee_F8.0um? rms uncertainty on F8.0ummJystat.errorfloatnullableF24um? Flux density at 24um (1)mJyphot.flux.density;em.IR.15-30umdoublenullablee_F24um? rms uncertainty on F24ummJystat.errorfloatnullableFHa? Halpha flux density (1)1e-17W.m**-2phot.flux;em.line.Halphafloatnullablee_FHa? rms uncertainty on FHa1e-17W.m**-2stat.errorfloatnullable