J/ApJ/835/55ivo://CDS.VizieR/J/ApJ/835/55doi:10.26093/cds/vizier.18350055CDSTakekoshi T.Minamidani T.Komugi S.Kohno K.Tosaki T.Sorai K.,Muller E.Mizuno N.Kawamura A.Onishi T.Fukui Y.Ezawa H.,Oshima T.Scott K.S.Austermann J.E.Matsuo H.Aretxaga I.,Hughes D.H.Kawabe R.Wilson G.W.Yun M.S.2017-10-09T08:13:32Z2017-09-11T13:16:17ZCDS support team

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

cds-question@unistra.frmillimeter-astronomysubmillimeter-astronomymagellanic-cloudsinfrared-sourcesh-ii-regionsyoung-stellar-objectsThe first 1.1mm continuum survey toward the Small Magellanic Cloud (SMC) was performed using the AzTEC instrument installed on the ASTE 10m telescope. This survey covered 4.5deg^2^ of the SMC with 1{sigma} noise levels of 5-12mJy/beam, and 44 extended objects were identified. The 1.1mm extended emission has good spatial correlation with Herschel 160{mu}m, indicating that the origin of the 1.1mm extended emission is thermal emission from a cold dust component. We estimated physical properties using the 1.1mm and filtered Herschel data (100, 160, 250, 350, and 500{mu}m). The 1.1mm objects show dust temperatures of 17-45K and gas masses of 4x10^3^-3x10^5^M_{sun}_, assuming single-temperature thermal emission from the cold dust with an emissivity index, {beta}, of 1.2 and a gas-to-dust ratio of 1000. These physical properties are very similar to those of giant molecular clouds (GMCs) in our galaxy and the Large Magellanic Cloud. The 1.1mm objects also displayed good spatial correlation with the Spitzer 24{mu}m and CO emission, suggesting that the 1.1mm objects trace the dense gas regions as sites of massive star formation. The dust temperature of the 1.1mm objects also demonstrated good correlation with the 24{mu}m flux connected to massive star formation. This supports the hypothesis that the heating source of the cold dust is mainly local star-formation activity in the 1.1mm objects. The classification of the 1.1mm objects based on the existence of star-formation activity reveals the differences in the dust temperature, gas mass, and radius, which reflects the evolution sequence of GMCs.2017ApJ...835...55Thttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/835/55CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toVII/232 : Nebulae in the Magellanic Clouds (Davies+ 1976)VII/259 : 6dF galaxy survey final redshift release (Jones+, 2009)J/AJ/119/1214 : Census of star clusters in the SMC (Bica+, 2000)J/A+A/364/455 : ubvy photometry of LMC/SMC B stars (Larsen+, 2000)J/AJ/127/1632 : UBVR(UIT) photometry of O and OB stars in SMC (Oey+, 2004)J/ApJ/655/212 : S3MC IRAC and MIPS photometry (Bolatto+, 2007)J/A+A/471/103 : SIMBA observations of SMC (Bot+, 2007)J/ApJ/686/948 : CO in extragalactic giant molecular clouds (Bolatto+, 2008)J/ApJS/178/56 : CO observations of LMC Giant Molecular clouds (Fukui+, 2008)J/MNRAS/385/2225 : AzTEC millimetre survey of COSMOS field (Scott+, 2008)J/ApJS/184/1 : Molecular clouds in the LMC by NANTEN. II. (Kawamura+, 2009)J/MNRAS/417/2651 : AT20G-optical catalogue (Mahony+, 2011)J/MNRAS/423/529 : AzTEC deep-field observations (Downes+, 2012)J/ApJ/761/37 : CO observations in giant molecular clouds of M33 (Miura+, 2012)J/AJ/146/62 : HERschel HERITAGE in Magellanic Clouds (Meixner+, 2013)J/AJ/148/124 : Herschel key program Heritage (Seale+, 2014)J/ApJS/217/7 : Orion A dense cores based on 1.1mm & C^18^O (Shimajiri+, 2015)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/835/55https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/835/55http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/835/55https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/835/55https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/835/55http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/835/55GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/835/55/table7 (*AzTEC/ASTE 1.1mm PCA source catalog of the SMC)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/835/55/table7?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/835/55/table7?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/835/55/table7?GETtext/xml+votable180.050000true12.036667-73.2469440.005555555555555556Cone search capability for table J/ApJ/835/55/extended (AzTEC/ASTE 1.1mm extended source catalog of the SMC (tables 2-5))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/835/55/extended?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/835/55/extended?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/835/55/extended?GETtext/xml+votable180.050000true12.103333-73.0994440.0055555555555555566/33294 33295 33299 33304 33306 33316 33317 333283.180513520130092e-24 2.9851966310207673e-20https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/835/55?format=asciiRadioInfrareddefaultJ/ApJ/835/55/table7*AzTEC/ASTE 1.1mm PCA source catalog of the SMCSimbadNameSimbad column added by the CDSmeta.idcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRegRegion (SW, NE, Wing or N88; see Figure 12)obs.fieldcharID[1/28] Running number in Region, PCA mapmeta.id;meta.mainintRAJ2000[0/1] Hour of Right Ascension (J2000)pos.eq.ra;meta.mainDEJ2000[71/73] Degree of Declination (J2000)pos.eq.dec;meta.mainPkFlux[25/113] Observed Peak Flux, PCA mapmJy/beamphot.flux.density;em.mm.200-400GHzfloate_PkFlux[5/13] PCA Map noise level at 1.1mmmJy/beamstat.errorfloatSNR[4.5/18] Signal-to-noise ratio, PCAstat.snrfloatSeq[1/20]? AzTEC/ASTE 1.1mm extended source catalog sequence number within Reg; as in table 2 (1)meta.id.crossintnullableONameCounterparts (2)meta.notecharJ/ApJ/835/55/extendedAzTEC/ASTE 1.1mm extended source catalog of the SMC (tables 2-5)COCO Detection surveymeta.idcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRegRegion (SW, NE, Wing or N88; see Figure 1)obs.fieldcharSeq[1/24] Running number in Regionmeta.id;meta.mainintprimaryPCADisplay the PCA catalog source(s)meta.ref.urlintnullableRAJ2000[0/1] Hour of Right Ascension (J2000)pos.eq.ra;meta.mainDEJ2000[71/73] Degree of Declination (J2000)pos.eq.dec;meta.mainPkFlux[35/150] Observed Peak FluxmJy/beamphot.flux.density;em.mm.200-400GHzfloate_PkFlux[4/12] Map noise level at 1.1mmmJy/beamstat.errorfloatSNR[6/29] Signal-to-noise ratiostat.snrfloatTotFlux[23/1683] 1.1mm total fluxmJyphot.flux.density;em.mm.200-400GHzfloate_TotFlux[5/216] Uncertainty in TotFluxmJystat.errorfloatRad[5.8/40] Projected source radiuspcphys.size.radiusfloatRad-d[0.3/40] Deconvolved source radiuspcphys.size.radiusfloatS4.8GHz[0.5/608] Unfiltered 4.8GHz ATCA+Parkes flux density (SRaw-4.8GHz)mJyphot.flux.density;em.radio.3-6GHzfloate_S4.8GHz[0.1/7] Uncertainty for S4.8GHzmJystat.errorfloatS8.64GHz[-1.4/590] Unfiltered 8.6GHz ATCA+Parkes flux density (SRaw-8.64GHz)mJyphot.flux.density;em.radio.6-12GHzfloate_S8.64GHzUncertainty for S8.6GHzmJystat.errorfloatS1.1mm[23/1683] FRUIT derived AzTEC+ASTE 1.1mm flux density (SFRUIT-1.1mm) (1)mJyphot.flux.density;em.mm.200-400GHzfloate_S1.1mm[5/216] Uncertainty for S1.1mmmJystat.errorfloatS500um[0.07/16] FRUIT derived Herschel/SPIRE 500um flux density (SFRUIT-500um) (1)Jyphot.flux.density;em.mm.400-750GHzfloate_S500um[0.1/2] Uncertainty for S500umJystat.errorfloatS350um[0.1/38] FRUIT derived Herschel/SPIRE 350um flux density (SFRUIT-350um) (1)Jyphot.flux.density;em.mm.750-1500GHzfloate_S350umUncertainty for S350umJystat.errorfloatS250um[0.3/79] FRUIT derived Herschel/SPIRE 250um flux density (SFRUIT-250um) (1)Jyphot.flux.density;em.mm.750-1500GHzfloate_S250umUncertainty for S250umJystat.errorfloatS160um[0.5/180] FRUIT derived Herschel/PACS 160um flux density (SFRUIT-160um) (1)Jyphot.flux.density;em.mm.1500-3000GHzfloate_S160umUncertainty for S160umJystat.errorfloatS100um[0.6/257] FRUIT derived Herschel/PACS 100um flux density (SFRUIT-100um) (1)Jyphot.flux.density;em.IR.60-100umfloate_S100umUncertainty for S100umJystat.errorfloatS70um[0.5/192] Unfiltered Spitzer/MIPS 70um flux density (SRaw-70um)Jyphot.flux.density;em.IR.30-60umfloate_S70umUncertainty for S70umJystat.errorfloatS24um[14/24577] Unfiltered Spitzer/MIPS 24um flux density (SRaw-24um)mJyphot.flux.density;em.IR.15-30umfloate_S24umUncertainty for S24ummJystat.errorfloatS8um[9/2734] Unfiltered Spitzer/IRAC 8um flux density (SRaw-8um)mJyphot.flux.density;em.IR.8-15umfloate_S8umUncertainty for S8ummJystat.errorfloatTdust[16/45] Derived dust temperatureKphys.temperaturefloate_Tdust[0.7/4] Uncertainty in TdustKstat.errorfloatMdust[4/337] Total dust masssolMassphys.massfloate_Mdust[1/34] Uncertainty in Mass-dustsolMassstat.errorfloatMgas[4/337] Total gas mass (2)1000solMassphys.massfloate_Mgas[1/34] Uncertainty in Mass-gas (2)1000solMassstat.errorfloatnH2[17/171] Number density, H2, molecules/cm3cm**-3meta.number;phys.densityfloate_nH2[1/81] Uncertainty in nH2cm**-3stat.errorfloatNH2[1/5] Column density, H_2_, 10^21^ molecules/cm^2^1e+21cm**-2phys.columnDensityfloate_NH2[0.2/3] Uncertainty in NH21e+21cm**-2stat.error;phys.columnDensityfloatff1.1mm[0.1/23] 1.1mm Free-Free fractional contribution%stat.fit.paramfloatCatCatalog or other evidence of star formation (3)meta.notechar