J/ApJ/719/9ivo://CDS.VizieR/J/ApJ/719/9doi:10.26093/cds/vizier.17190009CDSStrafella F.Elia D.Campeggio L.Giannini T.Lorenzetti D.,Marengo M.Smith H.A.Fazio G.De Luca M.Massi F.2023-04-20T15:59:48Z2011-11-23T10:33:01ZCDS support team

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

cds-question@unistra.frinfrared-photometrymolecular-cloudsyoung-stellar-objectsThis paper presents the observations of Cloud D in the Vela Molecular Ridge, obtained with the Infrared Array Camera (IRAC) camera on board the Spitzer Space Telescope at the wavelengths {lambda}=3.6, 4.5, 5.8, and 8.0um. A photometric catalog of point sources, covering a field of approximately 1.2deg^2^, has been extracted and complemented with additional available observational data in the millimeter region. Previous observations of the same region, obtained with the Spitzer MIPS camera in the photometric bands at 24um and 70um, have also been reconsidered to allow an estimate of the spectral slope of the sources in a wider spectral range. A total of 170299 point sources, detected at the 5{sigma} sensitivity level in at least one of the IRAC bands, have been reported in the catalog. There were 8796 sources for which good quality photometry was obtained in all four IRAC bands. For this sample, a preliminary characterization of the young stellar population based on the determination of spectral slope is discussed; combining this with diagnostics in the color-magnitude and color-color diagrams, the relative population of young stellar objects (YSOs) in different evolutionary classes has been estimated and a total of 637 candidate YSOs have been selected.2010ApJ...719....9Shttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/719/9CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/ApJ/704/606 : Protostars identification through Spitzer (Giannini+, 2009)J/ApJ/671/470 : MIPS survey of YSOs in Vela Molecular Ridge-D (Giannini+,J/A+AS/104/233 : Emission-line stars in Vela Molecular Ridge (Pettersson+https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/719/9https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/719/9http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/719/9https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/719/9https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/719/9http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/719/9GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/719/9/table2 (VMR-D MIPS catalog)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/719/9/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/719/9/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/719/9/table2?GETtext/xml+votable180.050000true130.79321-44.013850.005555555555555556Cone search capability for table J/ApJ/719/9/table5 (VMR-D IRAC point source catalog)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/719/9/table5?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/719/9/table5?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/719/9/table5?GETtext/xml+votable180.050000true131.0319089-43.73655810.005555555555555556Cone search capability for table J/ApJ/719/9/table9 (VMR-D IRAC YSO catalog)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/719/9/table9?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/719/9/table9?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/719/9/table9?GETtext/xml+votable180.050000true131.224365-43.92662390.005555555555555556Cone search capability for table J/ApJ/719/9/table10 (VMR-D MIPS YSO catalog)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/719/9/table10?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/719/9/table10?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/719/9/table10?GETtext/xml+votable180.050000true131.09596-43.774940.0055555555555555565/9812 6/39237 392392.4016587514425055e-21 6.185923063528282e-20https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/719/9?format=asciiInfrareddefaultJ/ApJ/719/9/table2VMR-D MIPS catalogrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintYmeta.codecharMIPSMIPS catalog number (<[SEC2010] MIPS NNNN> in Simbad)meta.id;meta.mainintprimaryRAJ2000Right Ascension in decimal degrees (J2000)degpos.eq.ra;meta.mainDEJ2000Declination in decimal degrees (J2000)degpos.eq.dec;meta.mainGLONGalactic longitudedegpos.galactic.lonGLATGalactic latitudedegpos.galactic.latdoubleF24Spitzer/MIPS 24 micron band flux densityJyphot.flux.density;em.IR.15-30umdoublee_F24Uncertainty in F24 (1)Jystat.errordoublee_F70Uncertainty in F70 (1)Jystat.errordoubleF70Spitzer/MIPS 70 micron band flux densityJyphot.flux.density;em.IR.30-60umdoubleDistDistance between centroids at 24 and 70 micronsarcsecpos;arith.difffloatnullableIRAC[IN] Source inside(I) / outside(N) IRAC observed regionmeta.codechar12CO[CAON] Association with ^12^CO(1-0) (G1)meta.codechar13CO[CAON] Association with ^13^CO(2-1) (G1)meta.codecharDustName of 1.2mm dust core (G2)meta.id.assoccharJ/ApJ/719/9/table5VMR-D IRAC point source catalogYmeta.codecharIRACIRAC catalog number (<[SEC2010] IRAC NNNNNN> in Simbad)meta.id;meta.mainintprimaryMIPS?=- Associated MIPS catalog number (<[SEC2010] MIPS NNNN> in Simbad) (2)meta.id.crossintnullable13CO[CAON] Association with ^13^CO(2-1) (G1)meta.codecharDustName of 1.2mm dust core (G2)meta.id.assoccharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ2000Right Ascension in decimal degrees (J2000)degpos.eq.ra;meta.mainindexedDEJ2000Declination in decimal degrees (J2000)degpos.eq.dec;meta.mainindexedGLONGalactic longitudedegpos.galactic.lonGLATGalactic latitudedegpos.galactic.latdoubleF3.6? Spitzer/IRAC 3.6 micron band flux densityJyphot.mag;em.IR.3-4umdoublenullablee_F3.6? Uncertainty in F3.6Jystat.errordoublenullableq_F3.6Quality flag on F3.6 (1)meta.code.qualcharF4.5? Spitzer/IRAC 4.5 micron band flux densityJyphot.mag;em.IR.4-8umdoublenullablee_F4.5? Uncertainty in F4.5Jystat.errordoublenullableq_F4.5Quality flag on F4.5 (1)meta.code.qualcharF5.8? Spitzer/IRAC 5.8 micron band flux densityJyphot.flux.density;em.IR.4-8umdoublenullablee_F5.8? Uncertainty in F5.8Jystat.errordoublenullableq_F5.8Quality flag on F5.8 (1)meta.code.qualcharF8.0? Spitzer/IRAC 8.0 micron band flux densityJyphot.flux.density;em.IR.8-15umdoublenullablee_F8.0? Uncertainty in F8.0Jystat.errordoublenullableq_F8.0Quality flag on F8.0 (1)meta.code.qualcharDistDistance of associated MIPS source centroidarcsecpos;arith.difffloatnullableF24? Spitzer/MIPS 24 micron band flux density (3)Jyphot.flux.density;em.IR.15-30umdoublenullablee_F24Uncertainty in F24Jystat.errordoubleq_F24[Gbu] Quality flag on F24 (4)meta.code.qualcharF70? Spitzer/MIPS 70 micron band flux densityJyphot.flux.density;em.IR.30-60umdoublenullablee_F70Uncertainty in F70Jystat.errordoubleq_F70[Gbu] Quality flag on F70 (4)meta.code.qualchar12CO[CAON] Association with ^12^CO(1-0) (G1)meta.codecharJ/ApJ/719/9/table9VMR-D IRAC YSO catalogrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIRACIRAC catalog number (<[SEC2010] IRAC NNNNNN> in Simbad)meta.id;meta.mainintRAJ2000Right Ascension in decimal degrees (J2000)degpos.eq.ra;meta.mainDEJ2000Declination in decimal degrees (J2000)degpos.eq.dec;meta.mainGLONGalactic longitudedegpos.galactic.lonGLATGalactic latitudedegpos.galactic.latdoubleF3.6? Spitzer/IRAC 3.6 micron band flux densityJyphot.mag;em.IR.3-4umdoublenullablee_F3.6? Uncertainty in F3.6Jystat.errordoublenullableq_F3.6Quality flag on F3.6 (1)meta.code.qualcharF4.5? Spitzer/IRAC 4.5 micron band flux densityJyphot.mag;em.IR.4-8umdoublenullablee_F4.5? Uncertainty in F4.5Jystat.errordoublenullableq_F4.5Quality flag on F4.5 (1)meta.code.qualcharF5.8? Spitzer/IRAC 5.8 micron band flux densityJyphot.flux.density;em.IR.4-8umdoublenullablee_F5.8? Uncertainty in F5.8Jystat.errordoublenullableq_F5.8Quality flag on F5.8 (1)meta.code.qualcharMIPS?=- Associated MIPS catalog number (<[SEC2010] MIPS NNNN> in Simbad) (2)meta.id.crossintnullableSimbadSimbad column added by the CDSmeta.ref.urlchare_F8.0? Uncertainty in F8.0Jystat.errordoublenullableF8.0? Spitzer/IRAC 8.0 micron band flux densityJyphot.flux.density;em.IR.8-15umdoublenullableq_F8.0Quality flag on F8.0 (1)meta.code.qualcharDistDistance of associated MIPS source centroidarcsecpos;arith.difffloatnullableF24? Spitzer/MIPS 24 micron band flux density (3)Jyphot.flux.density;em.IR.15-30umdoublenullablee_F24Uncertainty in F24Jystat.errordoubleq_F24[Gbu] Quality flag on F24 (4)meta.code.qualcharF70? Spitzer/MIPS 70 micron band flux densityJyphot.flux.density;em.IR.30-60umdoublenullablee_F70Uncertainty in F70Jystat.errordoubleq_F70[Gbu] Quality flag on F70 (4)meta.code.qualcharalpha? Spectral slope; 2um<{lambda}<20um (for table 9 only)arith.gradfloatnullable12CO[CAON] Association with ^12^CO(1-0) (G1)meta.codechar13CO[CAON] Association with ^13^CO(2-1) (G1)meta.codecharDustName of 1.2mm dust core (G2)meta.id.assoccharJ/ApJ/719/9/table10VMR-D MIPS YSO catalogMIPSMIPS catalog number (<[SEC2010] MIPS NNNN> in Simbad)meta.id;meta.mainintGLONGalactic longitudedegpos.galactic.lonGLATGalactic latitudedegpos.galactic.latdoubleF24Spitzer/MIPS 24 micron band flux densityJyphot.flux.density;em.IR.15-30umdoublee_F24Uncertainty in F24 (zero for upper limit) (1)Jystat.errordoubleF70Spitzer/MIPS 70 micron band flux densityJyphot.flux.density;em.IR.30-60umdoublee_F70Uncertainty in F70 (zero for upper limit) (1)Jystat.errordoubleIRAC?=- IRAC catalog number (<[SEC2010] IRAC NNNN> in Simbad)meta.id.crossintnullableSimbadSimbad column added by the CDSmeta.ref.urlcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ2000Right Ascension in decimal degrees (J2000)degpos.eq.ra;meta.mainDEJ2000Declination in decimal degrees (J2000)degpos.eq.dec;meta.mainDistDistance between centroids at 24 and 70 micronsarcsecpos;arith.difffloatnullablealphaSpectral slope; 2um<{lambda}<20umarith.gradfloat12CO[CAON] Association with ^12^CO(1-0) (G1)meta.codechar13CO[CAON] Association with ^13^CO(2-1) (G1)meta.codecharDustName of 1.2mm dust core (G2)meta.id.assocchar