J/ApJ/702/178ivo://CDS.VizieR/J/ApJ/702/178doi:10.26093/cds/vizier.17020178CDSYusef-Zadeh F.Hewitt J.W.Arendt R.G.Whitney B.Rieke G.Wardle M.,Hinz J.L.Stolovy S.Lang C.C.Burton M.G.Ramirez S.2017-07-11T13:09:28Z2011-12-11T13:25:36ZCDS support team

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

cds-question@unistra.frinfrared-sourcesmilky-way-galaxyyoung-stellar-objectsstellar-massesThe central kpc of the Milky Way might be expected to differ significantly from the rest of the Galaxy with regard to gasdynamics and the formation of young stellar objects (YSOs). We probe this possibility with mid-infrared observations obtained with Infrared Array Camera and Multiband Imaging Photometer on Spitzer and with Midcourse Space Experiment. We use color-color diagrams and spectral energy distribution (SED) fits to explore the nature of YSO candidates (including objects with 4.5um excesses possibly due to molecular emission). We use the SEDs of these sources to estimate their physical characteristics; their masses appear to range from ~10 to ~20M_{sun}_.2009ApJ...702..178Yhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/702/178CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toII/295 : Spitzer IRAC survey of the galactic center (Ramirez+, 2008)J/ApJS/181/227 : Catalog of 24um sources toward Galactic Center (Hinz+, 2009)J/ApJ/697/1741 : Warped disks of YSOs in Galactic center (Bartko+, 2009)J/ApJS/177/255 : GBT multiwavelength survey of Galactic center (Law+, 2008)J/A+A/453/535 : Classification of bright mid-IR sources (Schuller+, 2006)J/ApJ/643/1011 : Early-type stars in the center of the Galaxy (Paumard+, 2006)J/ApJS/155/421 : Survey of Galactic Center region at 20cm (Yusef-Zadeh+, 2004)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/702/178https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/702/178http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/702/178https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/702/178https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/702/178http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/702/178GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/702/178/maser (Methanol class I)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/702/178/maser?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/702/178/maser?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/702/178/maser?GETtext/xml+votable180.050000true266.4221667-29.39458330.005555555555555556Cone search capability for table J/ApJ/702/178/table5 (Table of sources with 4.5um Excess Emission)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/702/178/table5?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/702/178/table5?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/702/178/table5?GETtext/xml+votable180.050000true267.0890417-28.08352780.005555555555555556Cone search capability for table J/ApJ/702/178/table6 (Table of 70um Sources)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/702/178/table6?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/702/178/table6?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/702/178/table6?GETtext/xml+votable180.050000true267.73475-28.52344440.005555555555555556Cone search capability for table J/ApJ/702/178/table1 (Galactic coordinates and flux density of sources in G359.43+0.02)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/702/178/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/702/178/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/702/178/table1?GETtext/xml+votable180.050000true266.10727018-29.337013150.005555555555555556Cone search capability for table J/ApJ/702/178/YSOcand (Combined table from original tables)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/702/178/YSOcand?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/702/178/YSOcand?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/702/178/YSOcand?GETtext/xml+votable180.050000true265.640176-30.0103660.005555555555555556Cone search capability for table J/ApJ/702/178/green (Parameters of SED fits to 4.5um excess sources near)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/702/178/green?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/702/178/green?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/702/178/green?GETtext/xml+votable180.050000true267.088649-28.0833730.0055555555555555565/7206 7207https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/702/178?format=asciiInfrareddefaultJ/ApJ/702/178/maserMethanol class IrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIDSource identificationmeta.id;meta.mainintClMethanol classsrc.classnullableGLONGalactic longitudedegpos.galactic.lonGLATGalactic latitudedegpos.galactic.latfloatRAJ2000Hour of right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Degree of declination (J2000)pos.eq.dec;meta.mainVlsrLSR velocitykm/sphys.veloc;pos.lsrfloatRefReference(s) (1)meta.ref;pos.framecharJ/ApJ/702/178/table5Table of sources with 4.5um Excess EmissionrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIDGreen source identification (<[YHA2009] gNN> in Simbad) (1)meta.id;meta.mainintGLONGalactic longitudedegpos.galactic.lonGLATGalactic latitudedegpos.galactic.latfloatRAJ2000Hour of right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Degree of declination (J2000)pos.eq.dec;meta.mainCommDescriptionmeta.notecharJ/ApJ/702/178/table6Table of 70um SourcesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIDSource identification from table 5, or from table8 when n_ID is 'a' (1)meta.id;meta.mainintn_ID[a] Methanol class II maser source (2)meta.notecharGLONGalactic longitudedegpos.galactic.lonGLATGalactic latitudedegpos.galactic.latdoubleRAJ2000Hour of right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Degree of declination (J2000)pos.eq.dec;meta.mainFlux? FluxmJyphot.flux.density;em.IRintnullableS/N? Signal to noise ratiostat.snrfloatnullableJ/ApJ/702/178/table1Galactic coordinates and flux density of sources in G359.43+0.02Surf? Surface when circulararcsec**2phys.angSizeintnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordint[YHA2009]Source numbermeta.id;meta.mainintm_[YHA2009][e] e: Extended componentmeta.code.multipcharn_[YHA2009][abc] Individual notes (1)meta.notecharGLONGalactic longitudedegpos.galactic.lonGLATGalactic latitudedegpos.galactic.latS6cm? VLA 6cm flux densityphot.flux.density;em.radio.3-6GHzfloatnullablee_S6cm? S6cm uncertaintystat.errorfloatnullableS20cm? VLA 20cm flux densityphot.flux.density;em.radio.750-1500MHzfloatnullablee_S20cm? S20cm uncertaintystat.errorfloatnullableamaj? Major axisarcsecphys.angSizefloatnullableamin? Minor axisarcsecphys.angSize;srcfloatnullableSimbadSimbad column added by the CDSchar_RA.icrsRight ascension (ICRS) (computed by VizieR, not part of the original data)degpos.eq.ra;meta.mainnullableindexed_DE.icrsDeclination (ICRS) (computed by VizieR, not part of the original data)degpos.eq.dec;meta.mainnullableindexedJ/ApJ/702/178/YSOcandCombined table from original tablesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSSTGCSST (Spitzer Space Telescope) Galactic center (GC) number (1)meta.idintn_SSTGC[abc, ] Notes for individual sources (2)meta.notecharGLONGalactic longitudedegpos.galactic.lonGLATGalactic latitudedegpos.galactic.latChi2{chi}^2^ valuestat.valuefloatNfitsNumber of acceptably fitting modelsmeta.numberintAvVisual extinction A_v_magphys.absorption;em.opt.VfloatMassAverage mass of the protostarsolMassphys.mass;stat.meanfloate_MassMass uncertaintysolMassstat.error;phys.massfloatLumAverage luminosity of the protostarsolLumphys.luminositydoublee_LumLum uncertaintysolLumstat.errordoubleMenvAverage mass accretion ratesolMass/yrphys.mass.lossdoublee_MenvMenv 1{sigma} standard deviationsolMass/yrstat.errordoubleStageEvolutionary stage of the fitted source (I, II or III)src.classnullable2M/IRACDisplay the 2MASS/IRAC catalog of the Galactic Center (SSTGC; Ramirez et al. 2008, Cat. II/295)meta.ref.urlcharSimbadSimbad column added by the CDSchar_RA.icrsRight ascension (ICRS) (computed by VizieR, not part of the original data)degpos.eq.ra;meta.mainnullableindexed_DE.icrsDeclination (ICRS) (computed by VizieR, not part of the original data)degpos.eq.dec;meta.mainnullableindexedJ/ApJ/702/178/greenParameters of SED fits to 4.5um excess sources nearrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordint[YHA2009]Green number (gNNA)meta.id;meta.maincharn_[YHA2009]Simbad column added by the CDSmeta.notecharSSTGCSSTGC numbermeta.idintGLONGalactic longitudedegpos.galactic.lonGLATGalactic latitudedegpos.galactic.latChi2{chi}^2^ valuestat.valuefloatNfitsNumber of acceptably fitting modelsmeta.numberintAvVisual extinction A_v_magphys.absorption;em.opt.VfloatMassAverage mass of the protostarsolMassphys.mass;stat.meanfloate_MassMass uncertaintysolMassstat.error;phys.massfloatLumAverage luminosity of the protostarsolLumphys.luminositydoublee_LumLum uncertaintysolLumstat.errordoubleMenvAverage mass accretion ratesolMass/yrphys.mass.lossdoublee_MenvMenv 1{sigma} standard deviationsolMass/yrstat.errordoubleStageEvolutionary stage of the fitted sourcesrc.classnullable2M/IRACDisplay the 2MASS/IRAC catalog of the Galactic Center (SSTGC; Ramirez et al. 2008, Cat. II/295)meta.ref.urlcharSimbadSimbad column added by the CDSchar_RA.icrsRight ascension (ICRS) (computed by VizieR, not part of the original data)degpos.eq.ra;meta.mainnullableindexed_DE.icrsDeclination (ICRS) (computed by VizieR, not part of the original data)degpos.eq.dec;meta.mainnullableindexed