J/ApJS/184/172ivo://CDS.VizieR/J/ApJS/184/172doi:10.26093/cds/vizier.21840172CDSGruendl R.A.Chu Y.-H.2010-08-22T07:40:40Z2010-04-01T12:38:12ZCDS support team

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

cds-question@unistra.frinfrared-photometrymagellanic-cloudsyoung-stellar-objectsastronomical-object-identificationArchival Spitzer Infrared Array Camera (IRAC) and MIPS observations of the Large Magellanic Cloud (LMC) have been used to search for young stellar objects (YSOs). We have carried out independent aperture photometry of these data and merged the results from different passbands to produce a photometric catalog. To verify our methodology we have also analyzed the data from the SAGE and SWIRE Legacy programs; our photometric measurements are in general agreement with the photometry released by these programs. Using our mid-infrared photometric catalogs and two simple selection criteria, [4.5]-[8.0]>2.0 to exclude normal and evolved stars and [8.0]>14-([4.5]-[8.0]) to exclude background galaxies, we have identified a sample of 2910 sources in the LMC that could potentially be YSOs. We then used the Spitzer observations complemented by optical and near-infrared data to carefully assess the nature of each source. From the examination of the initial sample, we suggest that 1172 sources are most likely YSOs. Spitzer IRS observations of 269 of the brightest YSOs from our sample have confirmed that >~95% are indeed YSOs.2009ApJS..184..172Ghttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/184/172CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toII/255 : SWIRE ELAIS N1 Source Catalogs (Surace+, 2004)II/246 : 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)J/A+A/405/111 : LMC Survey of Young Stellar Systems (Gouliermis+, 2003)J/AJ/122/1844 : MSX and 2MASS cross-correlation in LMC (Egan+, 2001)J/AJ/132/2268 : SAGE calibration stars (Meixner+, 2006)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/184/172https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/184/172http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/184/172https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJS/184/172https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJS/184/172http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJS/184/172GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJS/184/172/catalog (IRAC and MIPS photometry of LMC objects: merged tables 4 to 12 of the paper, duplicates removed.)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/184/172/catalog?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/184/172/catalog?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/184/172/catalog?GETtext/xml+votable180.050000true65.7410833-69.60738890.0055555555555555564/2068 2069 5/8261 8262 8263 8268 8269 8270 8280 8281 8284 6/33039 33041 33043 33061 33069 33071 33084 33085 33086 33128 33129 33132 33133 33140 33142 33144 33792 37514 37536 37538 37544 37546 389128.650015785639275e-20 1.7003137259100215e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJS/184/172?format=asciiInfrareddefaultJ/ApJS/184/172/catalogIRAC and MIPS photometry of LMC objects: merged tables 4 to 12 of the paper, duplicates removed.recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSourceSource name (HHMMSS.ss+DDMMSS.s) (J2000) (1)meta.id;meta.maincharJmag? 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 K_s_ band magnitudemagphot.mag;em.IR.Kfloatnullablee_Ksmag? Uncertainty in Kmagmagstat.error;phot.mag;em.IR.Kfloatnullable3.6mag? Spitzer/IRAC 3.6um band magnitudemagphot.mag;em.IR.3-4umfloatnullablee_3.6mag? Uncertainty in 3.6magmagstat.errorfloatnullable4.5magSpitzer/IRAC 3.6um band magnitudemagphot.mag;em.IR.4-8umfloate_4.5magUncertainty in 4.5magmagstat.errorfloat5.8mag? Spitzer/IRAC 3.6um band magnitudemagphot.flux.density;em.IR.4-8umfloatnullablee_5.8mag? Uncertainty in 5.8magmagstat.errorfloatnullable8.0magSpitzer/IRAC 3.6um band magnitudemagphot.flux.density;em.IR.8-15umfloate_8.0magUncertainty in 8.0magmagstat.errorfloat24mag? Spitzer/MIPS 24.0um band magnitudemagphot.flux.density;em.IR.15-30umfloatnullablee_24mag? Uncertainty in 24.0magmagstat.errorfloatnullablef_24mag[s] saturated or amid saturated diffuse emission.meta.codecharl_70magLimit flag on 70.0magmeta.code.errorchar70mag? Spitzer/MIPS 70.0um band magnitudemagphot.flux.density;em.IR.30-60umfloatnullablee_70mag? Uncertainty in 70.0magmagstat.errorfloatnullableClassSource classification (3)meta.code.classcharSimbadCross identification from SIMBADmeta.id;phys.atmol.crossSectioncharu_Simbad[?] Uncertainty flag on cross-identificationmeta.code.errorcharTblTables in which the source appears: 4=LMC-evolved-stars , 5=PN, 6=background-galaxies, 7=probable-galaxies, 8=diffuse, 9=definite-LMC-YSO, 10=probable-LMC-YSO, 11=possible-LMC-YSO, 12=starmeta.id;meta.datasetchar2MDisplay the 2MASS data (Cutri et al. 2003, Cat. II/246)meta.ref.urlchar_RAPosition derived from source name (right ascension part)degpos.eq.ra;meta.main_DEPosition derived from source name (declination part)degpos.eq.dec;meta.main