J/MNRAS/441/224ivo://CDS.VizieR/J/MNRAS/441/224doi:10.26093/cds/vizier.74410224CDSNatale G.Foyle K.Wilson C.D.Kuno N.2024-08-09T20:14:59Z2015-05-04T11:09:28ZCDS support team

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

cds-question@unistra.frgalaxiesinfrared-sourcesinfrared-photometryWe present a multiwavelength study of a sample of far-infrared (FIR) sources detected on the Herschel broad-band maps of the nearby galaxy M33. We perform source photometry on the FIR maps as well as mid-infrared (MIR), H{alpha}, far-ultraviolet and integrated Hi and CO line emission maps. By fitting MIR/FIR dust emission spectra, the source dust masses, temperatures and luminosities are inferred. The sources are classified based on their H{alpha} morphology (sub-structured versus not-substructured) and on whether they have a significant CO detection (S/N>3{sigma}). We find that the sources have dust masses in the range 10^2^-10^4^M_{sun}_ and that they present significant differences in their inferred dust/star formation/gas parameters depending on their H{alpha} morphology and CO detection classification. The results suggests differences in the evolutionary states or in the number of embedded HII regions between the sub-samples. The source background-subtracted dust emission seems to be predominantly powered by local star formation, as indicated by a strong correlation between the dust luminosity and the dust-corrected H{alpha} luminosity and the fact that the extrapolated young stellar luminosity is high enough to account for the observed dust emission. Finally, we do not find a strong correlation between the dust-corrected H{alpha} luminosity and the dust mass of the sources, consistent with previous results on the breakdown of simple scaling relations at sub-kpc scales. However, the scatter in the relation is significantly reduced by correcting the H{alpha} luminosity for the age of the young stellar populations in the star-forming regions.2014MNRAS.441..224Nhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/441/224CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+A/476/1161 : Spitzer photometry of M33 (Verley+, 2007)J/ApJ/705/1364 : MIR catalog of point sources in M33 (Thompson+, 2009)J/A+A/534/A96 : Spitzer photometry of YSC in M33 (Sharma+, 2011)J/AJ/142/111 : Total infrared brightness and SFR in M33 (Boquien+, 2011)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/441/224https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/441/224http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/441/224https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/441/224https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/441/224http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/441/224GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/441/224/sources (Sources detected: positions and photometry (table A1), SED fit parameters and classifications (table B1))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/441/224/sources?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/441/224/sources?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/441/224/sources?GETtext/xml+votable180.050000true23.55622530.562493890.0055555555555555566/2154-2155 22415.675559809562688e-22 1.4134638842407062e-18https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/441/224?format=asciiInfrareddefaultJ/MNRAS/441/224/sourcesSources detected: positions and photometry (table A1), SED fit parameters and classifications (table B1)ID[1/183] Source ID numbermeta.id;meta.mainintrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ2000Right Ascension J2000degpos.eq.ra;meta.mainDEJ2000Declination J2000degpos.eq.dec;meta.mainF8Flux at 8um (IRAC)mJyphot.flux.density;em.IR.4-8umfloate_F8Uncertainty on F8mJystat.errorfloatF24Flux at 24um (MIPS)mJyphot.flux.density;em.IR.15-30umfloate_F24Uncertainty on F24mJystat.errorfloatF100Flux at 100um (PACS)mJyphot.flux.density;em.IR.60-100umfloate_F100Uncertainty on F100mJystat.errorfloatF160Flux at 160um (PACS)mJyphot.flux.density;em.mm.1500-3000GHzfloate_F160Uncertainty on F160mJystat.errorfloatF250? Flux at 250um (SPIRE)mJyphot.flux.density;em.mm.750-1500GHzfloatnullablee_F250? Uncertainty on F250mJystat.errorfloatnullableF350? Flux at 350um (SPIRE)mJyphot.flux.density;em.mm.750-1500GHzfloatnullablee_F350? Uncertainty on F350mJystat.errorfloatnullableFHaH{alpha} line flux (10^-14^erg/cm^2^/s)1e-17W.m**-2phot.flux;em.line.Halpha;spect.linefloate_FHaUncertainty on FHA1e-17W.m**-2stat.errorfloatFFUV? GALEX FUV fluxmJyphot.flux;em.UVfloatnullablee_FFUV? Uncertainty on FFUVmJystat.errorfloatnullableSHIHI mass surface density {Sigma}_HI_solMass.pc**-2phys.densityfloatSH2? H_2_ mass surface density {Sigma}_H2_solMass.pc**-2phys.densityfloatnullablechiUVRadiation field intensity parameter {chi}_UV_stat.fit.paramfloate_chiUVUncertainty on chiUVstat.errorfloatchiColRadiation field colour parameter {chi}_col_stat.fit.paramfloate_chiColUncertainty on chiColstat.errorfloatTSEDDust temperature T_SED_ (for diffuse dust SED template)Kphys.temperaturefloate_TSEDUncertainty on TSEDKstat.errorfloatMSEDDust mass M_SED_100solMassphys.massfloate_MSEDUncertainty on MSED100solMassstat.errorfloatf24[0/1] Fraction of 24um emission due to emission of photo-dissociation region (PDR)phot.flux;arith.ratiofloate_f24Uncertainty on f24stat.errorfloatLSEDTotal dust luminosity L_TOT_ (10^38^erg/s)1e+31Wphys.luminosityfloate_LSEDUncertainty on LSED1e+31Wstat.errorfloatchi2fitMinimum SED fit {chi}^2^_FIT_stat.fit.param;stat.minfloatSUBSource type from H{alpha}: SUB or NOSUB (1)src.classcharCOSource type CO: HighCO or LowCO (1)src.classchar