J/ApJS/181/321ivo://CDS.VizieR/J/ApJS/181/321doi:10.26093/cds/vizier.21810321CDSEvans N.J.Dunham M.M.Jorgensen J.K.Enoch M.L.Merin B.,Van Dishoeck E.F.Alcala J.M.Myers P.C.Stapelfeldt K.R.Huard T.L.,Allen L.E.Harvey P.M.Van Kempen T.Blake G.A.Koerner D.W.,Mundy L.G.Padgett D.L.Sargent A.I.2017-07-12T15:23:37Z2010-01-19T08:52:13ZCDS support team

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

cds-question@unistra.frinfrared-sourcesmolecular-cloudsphotometryyoung-stellar-objectsThe c2d Spitzer Legacy project obtained images and photometry with both IRAC and MIPS instruments for five large, nearby molecular clouds. Three of the clouds were also mapped in dust continuum emission at 1.1mm, and optical spectroscopy has been obtained for some clouds. This paper combines information drawn from studies of individual clouds into a combined and updated statistical analysis of star-formation rates and efficiencies, numbers and lifetimes for spectral energy distribution (SED) classes, and clustering properties. Current star-formation efficiencies range from 3% to 6%; if star formation continues at current rates for 10Myr, efficiencies could reach 15-30%. Star-formation rates and rates per unit area vary from cloud to cloud; taken together, the five clouds are producing about 260M_{sun}_ of stars per Myr.2009ApJS..181..321Ehttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/181/321CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/ApJ/638/293 : 1.1mm sources in the Perseus Molecular Cloud (Enoch+, 2006)J/A+A/452/245 : Near-IR photometry of PMS stars in rho Oph (Natta+, 2006)J/ApJ/663/1149 : Spitzer survey of Serpens YSO population (Harvey+, 2007)J/ApJ/676/427 : MIPS and IRAC data on ChaII PMS stars (Alcala+, 2008)J/ApJS/177/551 : Spitzer c2d survey of Lupus dark clouds (Merin+, 2008)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/181/321https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/181/321http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/181/321https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJS/181/321https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJS/181/321http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJS/181/321GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJS/181/321/c2d_mc (0.36-1300{mu}m flux densities from 2MASS and Spitzer, and properties of YSOs in the c2d clouds)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/181/321/c2d_mc?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/181/321/c2d_mc?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/181/321/c2d_mc?GETtext/xml+votable180.050000true192.10725-77.11013890.0055555555555555565/7590 10649 10653 10745 6/855 857 858 859 860 861 862 881 1538 1539 1542 1544 30366 41126 41127 41132 41134 42611 42621 42727 42736 42738 42744 42957 42959 42966 42967 42969 42970 42971 42972 42989 42992 42994 430001.6558465556080236e-21 1.7003137259100215e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJS/181/321?format=asciiInfraredOpticaldefaultJ/ApJS/181/321/c2d_mc0.36-1300{mu}m flux densities from 2MASS and Spitzer, and properties of YSOs in the c2d cloudsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordint[EDJ2009]Running source index numbermeta.record;spect.indexintCloudCloud name containing the sourcemeta.id.parentcharSSTc2dSpitzer source name (JHHMMSS.ss+DDMMSS.s)meta.idcharClassc2d classification (1)src.classcharAVThe V band extinction (2)magphys.absorption;em.opt.Vfloatalpha? Observed 2-24{mu}m spectral indexspect.index;em.IR.8-15umfloatnullablel_Tbol[<>= ] Limit flag on Tbolmeta.code.errorcharTbol? Observed bolometric temperatureKphys.temperature.effectiveintnullablel_Lbol[<>= ] Limit flag on Lbolmeta.code.errorcharLbol? Observed bolometric luminositysolLumphys.luminositydoublenullablealphac? Corrected 2-24{mu}m spectral indexspect.indexfloatnullablel_Tbolc[<>= ] Limit flag on Tbolcmeta.code.errorcharTbolc? Corrected bolometric temperatureKphys.temperature.effectiveintnullablel_Lbolc[<>= ] Limit flag on Lbolcmeta.code.errorcharLbolc? Corrected bolometric luminositysolLumphys.luminositydoublenullableEnvEnvelope evidence? (3)meta.notecharQualQuality of calculated Lbol and Tbol (4)meta.code.qual;meta.modelledcharSEDmeta.ref.urlcharF1.25? 2MASS J band flux densitymJyphot.flux.density;em.IR.Jdoublenullablee_F1.25? Error in F1.25mJystat.errordoublenullableF1.65? 2MASS H band flux densitymJyphot.flux.density;em.IR.Hdoublenullablee_F1.65? Error in F1.65mJystat.errordoublenullableF2.17? 2MASS K_S_ band flux densitymJyphot.mag;em.IR.Kdoublenullablee_F2.17? Error in F2.17mJystat.errordoublenullableF3.6? IRAC 3.6 micron flux densitymJyphot.mag;em.IR.3-4umdoublenullablee_F3.6? Error in F3.6mJystat.errordoublenullableF4.5? IRAC 4.5 micron flux densitymJyphot.mag;em.IR.4-8umdoublenullablee_F4.5? Error in F4.5mJystat.errordoublenullableF5.8? IRAC 5.8 micron flux densitymJyphot.flux.density;em.IR.4-8umdoublenullablee_F5.8? Error in F5.8mJystat.errordoublenullableF8.0? IRAC 8.0 micron flux densitymJyphot.flux.density;em.IR.8-15umdoublenullablee_F8.0? Error in F8.0mJystat.errordoublenullableF24? MIPS 24 micron flux densitymJyphot.flux.density;em.IR.15-30umfloatnullablee_F24? Error in F24mJystat.errordoublenullableF70? MIPS 70 micron flux densitymJyphot.flux.density;em.IR.30-60umintnullablee_F70? Error in F70mJystat.errordoublenullableF0.36? The U band flux densitymJyphot.flux.density;em.opt.Ufloatnullablee_F0.36? Error in F0.36mJystat.errordoublenullableF0.44? The B band flux densitymJyphot.flux.density;em.opt.Bdoublenullablee_F0.44? Error in F0.44mJystat.errordoublenullableF0.55? The V band flux densitymJyphot.flux.density;em.opt.Vfloatnullablee_F0.55? Error in F0.55mJystat.errorfloatnullableF0.64? The R band flux densitymJyphot.flux.density;em.opt.Rdoublenullablee_F0.64? Error in F0.64mJystat.errordoublenullableF0.665? The H{alpha}12 flux densitymJyphot.flux;em.line.Halphadoublenullablee_F0.665? Error in F0.665mJystat.errordoublenullableF0.79? The I band flux densitymJyphot.flux.density;em.opt.Ifloatnullablee_F0.79? Error in F0.79mJystat.errordoublenullableF0.915? The m914 band flux densitymJyphot.flux.density;em.IRfloatnullablee_F0.915? Error in F0.915mJystat.errordoublenullableF0.96? The z band flux densitymJyphot.flux.density;em.IRfloatnullablee_F0.96? Error in F0.96mJystat.errordoublenullableF3.4? The L band flux densitymJyphot.flux.density;em.IR.3-4umintnullablee_F3.4? Error in F3.4mJystat.errorfloatnullableF5.0? The M band flux densitymJyphot.flux.density;em.IR.4-8umintnullablee_F5.0? Error in F5.0mJystat.errorintnullableF6.7? ISO 6.7 micron flux densitymJyphot.flux.density;em.IR.4-8umfloatnullablee_F6.7? Error in F6.7mJystat.errorfloatnullableF12? IRAS 12 micron flux densitymJyphot.flux.density;em.IR.8-15umintnullablee_F12? Error in F12mJystat.errorfloatnullableF14.3? ISO 14.3 micron flux densitymJyphot.flux.density;em.IR.8-15umfloatnullablee_F14.3? Error in F14.3mJystat.errorfloatnullableF25? IRAS 25 micron flux densitymJyphot.flux.density;em.IR.15-30umintnullablee_F25? Error in F25mJystat.errorfloatnullableF60? IRAS 60 micron flux densitymJyphot.flux.density;em.IR.30-60umintnullablee_F60? Error in F60mJystat.errorintnullableF100? IRAS 100 micron flux densitymJyphot.flux.density;em.IR.60-100umintnullablee_F100? Error in F100mJystat.errorintnullableF160? MIPS 160 micron flux densitymJyphot.flux.density;em.mm.1500-3000GHzintnullablee_F160? Error in F160mJystat.errorintnullableF350? The 350 micron flux densitymJyphot.flux.density;em.mm.750-1500GHzintnullablee_F350? Error in F350mJystat.errorintnullableF450? The 450 micron flux densitymJyphot.flux.density;em.mm.400-750GHzintnullablee_F450? Error in F450mJystat.errorintnullableF850? The 850 micron flux densitymJyphot.flux.density;em.mm.200-400GHzintnullablee_F850? Error in F850mJystat.errorintnullableF1100? The 1100 micron flux densitymJyphot.flux.density;em.mm.200-400GHzintnullablee_F1100? Error in F1100mJystat.errorfloatnullableF1200? The 1200 micron flux densitymJyphot.flux.density;em.mm.200-400GHzintnullablee_F1200? Error in F1200mJystat.errorintnullableF1300? The 1300 micron flux densitymJyphot.flux.density;em.mm.200-400GHzintnullablee_F1300? Error in F1300mJystat.errorfloatnullableSimbadSimbad column added by the CDSmeta.ref.urlchar_RAPosition from Spitzer (SSTc2d) name (right ascension part)degpos.eq.ra;meta.main_DEPosition from Spitzer (SSTc2d) name (declination part)degpos.eq.dec;meta.main