J/ApJ/698/324ivo://CDS.VizieR/J/ApJ/698/324doi:10.26093/cds/vizier.16980324CDSRagan S.E.Bergin E.A.Gutermuth R.A.2017-12-06T07:38:14Z2012-11-24T17:57:02ZCDS support team

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

cds-question@unistra.frmolecular-cloudsinfrared-photometryyoung-stellar-objectsinterstellar-mediumWe have conducted a survey of a sample of infrared-dark clouds (IRDCs) with the Spitzer Space Telescope in order to explore their mass distribution. We present a method for tracing mass using dust absorption against the bright Galactic background at 8um. The IRDCs in this sample are comprised of tens of clumps, ranging in sizes from 0.02 to 0.3pc in diameter and masses from 0.5 to a few 10^3^M_{sun}_, the broadest dynamic range in any clump mass spectrum study to date.2009ApJ...698..324Rhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/698/324CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toII/246 : 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)J/A+A/505/405 : A catalogue of Spitzer dark clouds (Peretto+, 2009)J/ApJS/181/321 : Properties of Spitzer c2d dark clouds (Evans+, 2009)J/ApJ/663/1149 : Spitzer survey of Serpens YSO population (Harvey+, 2007)J/ApJS/166/567 : Radio Molecular lines in infrared dark clouds (Ragan+, 2006)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/698/324https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/698/324http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/698/324https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/698/324https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/698/324http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/698/324GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/698/324/table1 (Spitzer targets)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/698/324/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/698/324/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/698/324/table1?GETtext/xml+votable180.050000true269.97083-24.002780.005555555555555556Cone search capability for table J/ApJ/698/324/table2 (Spitzer-identified YSOs: 2MASS, IRAC, and MIPS photometry)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/698/324/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/698/324/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/698/324/table2?GETtext/xml+votable180.050000true269.9219583-24.05716670.005555555555555556Cone search capability for table J/ApJ/698/324/table6 (Clumpfind results, foreground estimation method A)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/698/324/table6?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/698/324/table6?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/698/324/table6?GETtext/xml+votable180.050000true269.9778272-24.00916640.0055555555555555566/28912 28913 28919 29090 29101 29532 29533 29535 30319 30417 304206.772611666688002e-21 1.7003137259100215e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/698/324?format=asciiInfrareddefaultJ/ApJ/698/324/table1Spitzer targetsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIRDCIRDC identification (GLLL.ll+B.bb)meta.id.parentcharprimaryRAJ2000Hour of right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Degree of declination (J2000)pos.eq.dec;meta.mainDistDistance (1)kpcpos.distance;pos.galactocentricfloatE_DistPositive error on Dist (1)kpcstat.error;stat.maxfloate_DistNegative error on Dist (1)kpcstat.errorfloatN2Number of YSOs found in this dark cloud (table2)meta.numberintnullableN6Number of clumps found in this dark cloud (table6)meta.numberintnullableR06Display the IRDC properties from Ragan et al., 2006, Cat. J/ApJS/166/567meta.ref.urlcharSimbadSimbad column added by the CDSmeta.refcharJ/ApJ/698/324/table2Spitzer-identified YSOs: 2MASS, IRAC, and MIPS photometrySeq[1/46] Index numbermeta.id;meta.mainintrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIRDCIRDC identification (GLLL.ll+B.bb)meta.id.parentcharRAJ2000Hour of Right Ascension (J2000)pos.eq.ra;meta.mainDEJ2000Degree of Declination (J2000)pos.eq.dec;meta.mainJmag? 2MASS J band magnitudemagphot.mag;em.IR.Jfloatnullablee_Jmag? Uncertainty in Jmagmagstat.error;phot.mag;em.IR.JfloatnullableHmag? 2MASS H band magnitudemagphot.mag;em.IR.Hfloatnullablee_Hmag? Uncertainty in Hmagmagstat.error;phot.mag;em.IR.HfloatnullableKsmag? 2MASS Ks band magnitudemagphot.mag;em.IR.Kfloatnullablee_Ksmag? Uncertainty in Ksmagmagstat.error;phot.mag;em.IR.Kfloatnullable[3.6]? Spitzer/IRAC 3.6 micron band magnitudemagphot.mag;em.IR.3-4umfloatnullablee_[3.6]? Uncertainty in [3.6]magstat.errorfloatnullable[4.5]Spitzer/IRAC 4.5 micron band magnitudemagphot.mag;em.IR.4-8umfloate_[4.5]Uncertainty in [4.5]magstat.errorfloat[5.8]? Spitzer/IRAC 5.8 micron band magnitudemagphot.flux.density;em.IR.4-8umfloatnullablee_[5.8]? Uncertainty in [5.8]magstat.errorfloatnullable[8.0]? Spitzer/IRAC 8.0 micron band magnitudemagphot.flux.density;em.IR.8-15umfloatnullablee_[8.0]? Uncertainty in [8.0]magstat.errorfloatnullable[24]? Spitzer/MIPS 24.0 micron band magnitudemagphot.flux.density;em.IR.15-30umfloatnullablee_[24]? Uncertainty in [24]magstat.errorfloatnullableAK? The Ks band extinctionmagphys.absorptionfloatnullableClassClassification of the YSO (1)meta.code.classchar2MDisplay the 2MASS data (Cutri et al. 2003, Cat. II/246)meta.ref.urlcharSimbadSimbad column added by the CDSmeta.refcharJ/ApJ/698/324/table6Clumpfind results, foreground estimation method ACSeqClump number (CNN)meta.id;meta.maincharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIRDCIRDC identification (GLLL.ll+B.bb)meta.id.parentcharoffRAOffset in Right Ascension from centerarcsecpos.eq.ra;arith.diffintoffDEOffset in Declination from centerarcsecpos.eq.dec;arith.diffintCMassClump masssolMassphys.massfloattauMaximum optical depthphys.absorption.opticalDepth;stat.maxfloatCSizeClump sizepcphys.angSizefloatNotesAdditional notes (1)meta.notechar_RAPosition computed from IRDC in table1 and offsets (right ascension part)degpos.eq.ra;meta.main_DEPosition computed from IRDC in table1 and offsets (declination part)degpos.eq.dec;meta.main