J/ApJ/695/511ivo://CDS.VizieR/J/ApJ/695/511doi:10.26093/cds/vizier.16950511CDSChen C.-H.R.Chu Y.-H.Gruendl R.A.Gordon K.D.Heitsch F.2017-09-19T14:23:47Z2011-05-26T15:05:43ZCDS support team

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

cds-question@unistra.frh-ii-regionsyoung-stellar-objectsinfrared-photometryThe HII complex N44 in the Large Magellanic Cloud (LMC) provides an excellent site to perform a detailed study of star formation in a mild starburst, as it hosts three regions of star formation at different evolutionary stages, and it is not as complicated and confusing as the 30 Doradus giant HII region. We have obtained Spitzer Space Telescope observations and complementary ground-based 4m uBVIJK observations of N44 to identify candidate massive young stellar objects (YSOs). We further classify the YSOs into Types I, II, and III, according to their spectral energy distributions (SEDs). In our sample of 60 YSO candidates, ~65% of them are resolved into multiple components or extended sources in high-resolution ground-based images.2009ApJ...695..511Chttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/695/511CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toII/246 : 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)J/ApJS/184/172 : High- and intermediate-mass YSOs in the LMC (Gruendl+, 2009)J/ApJ/678/200 : YSOs in N63 and N180 (Caulet+, 2008)J/A+AS/123/455 : LH 47 UVBRI photometry (Will+ 1997)J/ApJS/104/71 : UBV photometry of OB associations in LMC superbubbles (OeyJ/ApJ/452/210 : UBV photometry in LH 47/48 (Oey+ 1995)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/695/511https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/695/511http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/695/511https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/695/511https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/695/511http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/695/511GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/695/511/table2 (Multi-wavelength photometry of IRAC sources in N44)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/695/511/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/695/511/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/695/511/table2?GETtext/xml+votable180.050000true80.12759-68.054640.0055555555555555565/82752.4016587514425055e-21 6.118840631666147e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/695/511?format=asciiInfrareddefaultJ/ApJ/695/511/table2Multi-wavelength photometry of IRAC sources in N44recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordint[CCG2009]Source name (HHMMSS.s+DDMMSS.s -- J2000)meta.id;meta.maincharprimaryYSimbad column added by the CDSmeta.ref.urlcharUmag? The U band magnitudemagphot.mag;em.opt.Ufloatnullablee_Umag? Uncertainty in Umagmagstat.error;phot.mag;em.opt.UfloatnullableBmag? The B band magnitudemagphot.mag;em.opt.Bfloatnullablee_Bmag? Uncertainty in Bmagmagstat.error;phot.mag;em.opt.BfloatnullableVmag? The V band magnitudemagphot.mag;em.opt.Vfloatnullablee_Vmag? Uncertainty in Vmagmagstat.error;phot.mag;em.opt.VfloatnullableImag? The I band magnitudemagphot.mag;em.opt.Ifloatnullablee_Imag? Uncertainty in Imagmagstat.error;phot.mag;em.opt.IfloatnullableJmag? 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 3.6 micron band magnitudemagphot.mag;em.IR.3-4umfloatnullablee_3.6mag? Uncertainty in 3.6magmagstat.errorfloatnullable4.5mag? Spitzer/IRAC 4.5 micron band magnitudemagphot.mag;em.IR.4-8umfloatnullablee_4.5mag? Uncertainty in 4.5magmagstat.errorfloatnullable5.8mag? Spitzer/IRAC 5.8 micron band magnitudemagphot.flux.density;em.IR.4-8umfloatnullablee_5.8mag? Uncertainty in 5.8magmagstat.errorfloatnullable8.0mag? Spitzer/IRAC 8.0 micron band magnitudemagphot.flux.density;em.IR.8-15umfloatnullablee_8.0mag? Uncertainty in 8.0magmagstat.errorfloatnullable24mag? Spitzer/MIPS 24 micron band magnitudemagphot.flux.density;em.IR.15-30umfloatnullablef_24mag[s] Indicates 24mag is saturatedmeta.codechare_24mag? Uncertainty in 24magmagstat.errorfloatnullable70mag? Spitzer/MIPS 70 micron band magnitudemagphot.flux.density;em.IR.30-60umfloatnullablee_70mag? Uncertainty in 70magmagstat.errorfloatnullableRef[0/10] UBVI photometry reference flag (1)meta.note;photint2MDisplay the 2MASS data (Cutri et al. 2003, Cat. II/246)meta.ref.urlcharRAJ2000Right Ascension in decimal degrees (J2000)degpos.eq.ra;meta.mainDEJ2000Declination in decimal degrees (J2000)degpos.eq.dec;meta.mainJ/ApJ/695/511/table5Multiwavelength photometry of YSO candidates selected from CMD criteriaNoteRemark (3)meta.notecharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordint[CCG2009]Source name, as in table2meta.id;meta.maincharNoRanking of the brightness at 8ummeta.numberintUmag? The U band magnitudemagphot.mag;em.opt.Ufloatnullablee_Umag? Uncertainty in Umagmagstat.error;phot.mag;em.opt.UfloatnullableBmag? The B band magnitudemagphot.mag;em.opt.Bfloatnullablee_Bmag? Uncertainty in Bmagmagstat.error;phot.mag;em.opt.BfloatnullableVmag? The V band magnitudemagphot.mag;em.opt.Vfloatnullablee_Vmag? Uncertainty in Vmagmagstat.error;phot.mag;em.opt.Vfloatnullablel_ImagLimit flag on Imag (1)meta.code.errorcharImag? The I band magnitudemagphot.mag;em.opt.Ifloatnullablee_Imag? Uncertainty in Imagmagstat.error;phot.mag;em.opt.Ifloatnullablel_JmagLimit flag on Jmag (1)meta.code.errorcharJmag? 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.Hfloatnullablel_KsmagLimit flag on Ksmag (1)meta.code.errorcharKsmag? 2MASS K_S_ band magnitudemagphot.mag;em.IR.Kfloatnullablee_Ksmag? Uncertainty in Ksmagmagstat.error;phot.mag;em.IR.Kfloatnullablel_3.6magLimit flag on 3.6mag (1)meta.code.errorchar3.6mag? Spitzer/IRAC 3.6 micron band magnitudemagphot.mag;em.IR.3-4umfloatnullablee_3.6mag? Uncertainty in 3.6magmagstat.errorfloatnullablel_4.5magLimit flag on 4.5mag (1)meta.code.errorchar4.5mag? Spitzer/IRAC 4.5 micron band magnitudemagphot.mag;em.IR.4-8umfloatnullablee_4.5mag? Uncertainty in 4.5magmagstat.errorfloatnullable5.8mag? Spitzer/IRAC 5.8 micron band magnitudemagphot.flux.density;em.IR.4-8umfloatnullablee_5.8mag? Uncertainty in 5.8magmagstat.errorfloatnullable8.0mag? Spitzer/IRAC 8.0 micron band magnitudemagphot.flux.density;em.IR.8-15umfloatnullablee_8.0mag? Uncertainty in 8.0magmagstat.errorfloatnullablel_24magLimit flag on 24mag (1)meta.code.errorchar24mag? Spitzer/MIPS 24 micron band magnitudemagphot.flux.density;em.IR.15-30umfloatnullablef_24mag[s] Indicates 24mag is saturatedmeta.codechare_24mag? Uncertainty in 24magmagstat.errorfloatnullablel_70magLimit flag on 70mag (1)meta.code.errorchar70mag? Spitzer/MIPS 70 micron band magnitudemagphot.flux.density;em.IR.30-60umfloatnullablee_70mag? Uncertainty in 70magmagstat.errorfloatnullableRef[0/11] IJHK photometry reference flag (2)meta.note;photintClassClassification (3)src.classcharSimbadSimbad column added by the CDSchar