J/ApJ/707/1836ivo://CDS.VizieR/J/ApJ/707/1836doi:10.26093/cds/vizier.17071836CDSOlmi L.Ade P.A.R.Angles-Alcazar D.Bock J.J.Chapin E.L.De Luca M.,Devlin M.J.Dicker S.Elia D.Fazio G.G.Giannini T.Griffin M.,Gundersen J.O.Halpern M.Hargrave P.C.Hughes D.H.Klein J.,Lorenzetti D.Marengo M.Marsden G.Martin P.G.Massi F.Mauskopf P.,Netterfield C.B.Patanchon G.Rex M.Salama A.Scott D.Semisch C.,Smith H.A.Strafella F.Thomas N.Truch M.D.P.Tucker C.Tucker G.S.,Viero M.P.Wiebe D.V.2026-05-19T14:24:40Z2012-02-17T05:44:36ZCDS support team

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

cds-question@unistra.frmillimeter-astronomyphotometrysubmillimeter-astronomyinfrared-photometrysurveysmolecular-cloudsThe Balloon-borne Large-Aperture Submillimeter Telescope (BLAST) carried out a 250, 350, and 500um survey of the Galactic plane encompassing the Vela Molecular Ridge, with the primary goal of identifying the coldest dense cores possibly associated with the earliest stages of star formation. Here, we present the results from observations of the Vela-D region, covering about 4deg^2^, in which we find 141 BLAST cores. We exploit existing data taken with the Spitzer MIPS, IRAC, and SEST-SIMBA instruments to constrain their (single-temperature) spectral energy distributions, assuming a dust emissivity index {beta}=2.0. This combination of data allows us to determine the temperature, luminosity, and mass of each BLAST core, and also enables us to separate starless from protostellar sources. We also analyze the effects that the uncertainties on the derived physical parameters of the individual sources have on the overall physical properties of starless and protostellar cores, and we find that there appear to be a smooth transition from the pre- to the protostellar phase. In particular, for protostellar cores we find a correlation between the MIPS24 flux, associated with the central protostar, and the temperature of the dust envelope. We also find that the core mass function of the Vela-D cores has a slope consistent with other similar (sub)millimeter surveys.2009ApJ...707.1836Ohttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/707/1836CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toII/125 : IRAS catalogue of Point Sources, Version 2.0 (IPAC 1986)J/ApJ/719/9 : IRAC point-source catalog of Vela-D cloud (Strafella+, 2010)J/ApJ/704/606 : Protostars in the Vela Molecular Cloud (Giannini+, 2009)J/ApJ/707/1824 : Cold cores in Vela (Netterfield+, 2009)J/ApJ/681/428 : BLAST sources in Galactic plane survey (Chapin+, 2008)J/ApJ/671/470 : MIPS survey of YSOs in Vela Molecular Ridge-D (Giannini+,J/A+AS/136/471 : JHK photometry of D-cloud IRAS sources (Massi+, 1999)http://www.sciops.esa.int/index.php?project=ASTROF&page=observers : Akarihttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/707/1836https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/707/1836http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/707/1836https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/707/1836https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/707/1836http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/707/1836GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/707/1836/sources (BLAST sources and their 1.2mm-24um counterparts)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/707/1836/sources?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/707/1836/sources?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/707/1836/sources?GETtext/xml+votable180.050000true131.171914-43.1955830.0055555555555555565/9812 6/37882 39237 392521.6553710550405622e-22 1.000830682546041e-20https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/707/1836?format=asciiInfraredRadiodefaultJ/ApJ/707/1836/sourcesBLAST sources and their 1.2mm-24um counterpartsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeq[0,140] Running source identification numbermeta.recordintBLASTSource name (JHHMMSS+DDMMSS)meta.id;meta.maincharGLONGalactic longitudedegpos.galactic.lonGLATGalactic latitudedegpos.galactic.latS250BLAST flux density at 250um (1)Jyphot.flux.density;em.mm.750-1500GHzfloate_S250Uncertainty in S250 (2)Jystat.errorfloatS350BLAST flux density at 350um (1)Jyphot.flux.density;em.mm.750-1500GHzfloate_S350Uncertainty in S350 (2)Jystat.errorfloatS500BLAST flux density at 500um (1)Jyphot.flux.density;em.mm.400-750GHzfloate_S500Uncertainty in S500 (2)Jystat.errorfloatTSource temperature (1)Kphys.temperaturefloatE_TUpper limit uncertainty in T (2)Kstat.error;stat.maxfloate_TLower limit uncertainty in T (2)Kstat.errorfloatMassSource mass (1)solMassphys.massfloatE_MassUpper limit uncertainty in Mass (2)solMassstat.error;stat.maxfloate_MassLower limit uncertainty in Mass (2)solMassstat.error;phys.massfloatLumSource luminosity (1)solLumphys.luminosityfloatE_LumUpper limit uncertainty in Lum (2)solLumstat.error;stat.maxfloate_LumLower limit uncertainty in Lum (2)solLumstat.errorfloatDiamDeconvolved diameter (3)pcpos.distancefloatSEDSED plot of this sourcemeta.ref.urlcharS1200? SEST/SIMBA flux density at 1200um (4)Jyphot.flux.density;em.mm.200-400GHzfloatnullablef_S1200[a] Indicates aperture photometrymeta.codecharo_S1200[0,2]? Number of sources at S1200 (5)meta.numberintnullableS100? IRAS flux density at 100um (4)Jyphot.flux.density;em.IR.60-100umfloatnullablef_S100[a] Indicates aperture photometrymeta.codecharS60? IRAS flux density at 60um (4)Jyphot.flux.density;em.IR.30-60umfloatnullablef_S60[a] Indicates aperture photometrymeta.codecharo_S100[0/1] Number of IRAS-PSC sources associated with BLAST core (5)meta.numberinto_S60[0,2] Number of Akari sources associated with BLAST core (5)meta.numberintS70? Spitzer/MIPS flux density at 70um (4)Jyphot.flux.density;em.IR.30-60umfloatnullablef_S70[a] Indicates aperture photometrymeta.codecharo_S70[0,2]? Number of sources at S70 (5)meta.numberintnullableS24? Spitzer/MIPS flux density at 24um (4)Jyphot.flux.density;em.IR.15-30umfloatnullableo_S24[0,4]? Number of sources at S24 (5)meta.numberintnullableNmsx[0/1] Number of MSX sources (Cat. V/114) (5)meta.numberint_RA.icrsRight ascension (ICRS) (computed by VizieR, not part of the original data)degpos.eq.ra;meta.mainnullableindexed_DE.icrsDeclination (ICRS) (computed by VizieR, not part of the original data)degpos.eq.dec;meta.mainnullableindexed