J/ApJS/264/24ivo://CDS.VizieR/J/ApJS/264/24doi:10.26093/cds/vizier.22640024CDSZhang C.Zhang G.-Y.Li J.-Z.Yuan J.-H.2023-08-25T12:18:10Z2023-04-21T09:47:20ZCDS support team

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

cds-question@unistra.fryoung-stellar-objectsstellar-massesstellar-distanceaccretioninfrared-sourcesMassive young stellar objects (MYSOs) play a crucial role in star formation. Given that MYSOs were previously identified based on the extended structure and the observational data for them is limited, screening the Wide-field Infrared Survey Explorer (WISE) objects showing green features (for the common coding of the 4.6{mu}m band as the green channel in three-color composite WISE images) will yield more MYSO candidates. Using WISE images in the whole Galactic plane (0{deg}<l<360{deg} and |b|<2{deg}), we identified sources with strong emissions at the 4.6{mu}m band, then according to morphological features divided them into three groups. We present a catalog of 2135 WISE Green Objects (WGOs). 264 WGOs have an extended structure. 1366 WGOs show compact green features but without extended structure. 505 WGOs have neither extended structure nor green features, but the intensity at 4.6{mu}m is numerically at least 4.5 times that of 3.4{mu}m. According to the analysis of the coordinates of WGOs, we find WGOs are mainly distributed in |l|<60{deg}, coincident with the position of the giant molecular clouds in |l|>60{deg}. Matching results with various masers show that those three groups of WGOs are at different evolutionary stages. After crossmatching WGOs with published YSO survey catalogs, we infer that ~50% of WGOs are samples of newly discovered YSOs. In addition, 1260 WGOs are associated with Hi-GAL sources, according to physical parameters estimated by spectral energy distribution fitting, of which 231 are classified as robust MYSOs and 172 as candidate MYSOs.2023ApJS..264...24Zhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/264/24CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+A/308/573 : Ammonia on YSOs IRAS sources (Molinari+ 1996)J/A+A/434/613 : H2O maser survey of methanol maser sources (Szymczak+, 2005)J/AJ/136/2391 : GLIMPSE Extended Green Objects catalog (Cyganowski+, 2008)J/ApJ/702/1615 : CH_3_OH maser survey of EGOs (Cyganowski+, 2009)J/ApJS/181/227 : Catalog of 24um sources toward Galactic Center (Hinz+, 2009)J/ApJ/702/178 : YSOs in the central 400pc of the Galaxy (Yusef-Zadeh+, 2009)J/ApJ/723/1019 : Galactic SFR and gas surface densities (Heiderman+, 2010)J/ApJ/736/133 : Spitzer-IRS study of massive YSOs in Gal. center (An+, 2011)J/ApJS/196/9 : 95GHz maser survey toward GLIMPSE EGOs (Chen+, 2011)J/ApJ/756/60 : A 3mm line survey in 37 IR dark clouds (Sanhueza+, 2012)J/ApJS/206/9 : New EGOs from Spitzer GLIMPSE II survey. I. (Chen+, 2013)J/ApJ/764/61 : Water maser & NH3 survey of GLIMPSE EGOs (Cyganowski+, 2013)J/ApJS/208/11 : Red MSX Source Survey: massive protostars (Lumsden+, 2013)J/A+A/568/A41 : ATLASGAL Compact Source Catalog: 280<l<60 (Urquhart+, 2014)J/MNRAS/443/1555 : ATLASGAL massive star forming clumps (Urquhart+, 2014)J/MNRAS/458/3479 : SVM selection of WISE YSO Candidates (Marton+, 2016)J/ApJ/824/29 : ATLASGAL clumps with IRAS flux & MALT90 (Stephens+, 2016)J/A+A/620/A163 : Cores in California molecular cloud (Zhang+, 2018)J/MNRAS/488/4638 : Infall & outflow on massive star-forming regions (Li+, 2019)J/MNRAS/490/832 : Young stellar pop. of metal-poor NGC 6822 (Jones+, 2019)J/MNRAS/500/3050 : SSEDIGISM-ATLASGAL in Galactic disc (Urquhart+, 2021)J/ApJS/254/33 : Gal. midplane Spitzer/IRAC cand. YSOs (SPICY) (Kuhn+, 2021)J/A+A/646/A74 : Distance of HiGAL sources (Mege+, 2021)J/MNRAS/510/3389 : High-mass star formation evolution (Urquhart+, 2022)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/264/24https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/264/24http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/264/24https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJS/264/24https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJS/264/24http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJS/264/24GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJS/264/24/table2 (Robust massive young stellar objects)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/264/24/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/264/24/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/264/24/table2?GETtext/xml+votable180.050000true267.107526-29.2018470.005555555555555556Cone search capability for table J/ApJS/264/24/table3 (Candidate massive young stellar objects)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/264/24/table3?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/264/24/table3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/264/24/table3?GETtext/xml+votable180.050000true267.70308-27.3674160.0055555555555555565/3588 7564 10413 10453 10556 10624 6/12968 14317 14356 14406 14409 14625 14640 14647 14686 14688 14694 14704 15375 28807 28810-28813 28815 28824 28826-28829 28831 28874 28896-28897 28901 28912-28913 28915 28918-28919 29090-29091 29094 29097 29100-29101 29103 29112 29114-29115 29118 29504-29505 29507 29509-29511 29529 29532-29533 29535 30218-30219 30240 30244-30245 30262-30263 30268-30269 30312-30313 30315 30317-30319 30405 30417 30420 30422-30423 30592 30594-30595 30601 30604 30606 30616 30619 30623 30644 30688 30691-30694 30701 30706 30710 30712-30713 30716 30719 37343 37893-37894 37897 37906 37926 37928 37931 37934 38018 41595 41597-41599 41651 41660-41661 41671 41677 41681 41683 41685 41758-41759 41765 41767 41770 41772-41773 41777-41778 41780 41782 41799 41802-41805 41811 41817 41825 42159 42169-42172 42175 42207 42210-42211 42213-42215 42229 42376 42378-42379 42381-42383 42387 42390 42392-42393 42397 42434 42437 42441 42445 42454 42456-42457 42502 42512-42513 43013 43019 43040https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJS/264/24?format=asciiInfrareddefaultJ/ApJS/264/24/table2Robust massive young stellar objectsMMassive star threshold (6)meta.codecharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameSource name based on Galactic coordinatemeta.id;meta.maincharGroupGroup of WISE Green Objects (I, II or III); See Section 3.1src.classcharGLONGalactic longitude (1)degpos.galactic.lonGLAT[-1.7/1.8] Galactic latitude (1)degpos.galactic.latModelName of beat-fit model set from Robitaille+ 2017A&A...600A..11Rmeta.id;stat.param;meta.modelledcharMstar[0.9/15.8] Protostellar mass (2)solMassphys.massfloate_Mstar[0/18.4] Uncertainty in Mstar (3)solMassstat.errorfloatMdot[0.28/503] Accretion rate (4)0.0001solMass.yr**-1phys.mass.lossfloat_RA.icrsRight ascension (ICRS) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services)degpos.eq.raindexed_DE.icrsDeclination (ICRS) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services)degpos.eq.decindexedDist[1.6/21.8] Distance (5)kpcpos.distancefloatHHigh mass star (7)meta.codecharMasClass II methanol maser associated? (+=yes)meta.codecharU22Display data from Urquhart+, 2022, J/MNRAS/510/3389 within 3"meta.ref.urlintnullableWISEDisplay the WISE (II/311) and unWISE (II/363) data within 3"meta.ref.urlcharJ/ApJS/264/24/table3Candidate massive young stellar objects_RA.icrsRight ascension (ICRS) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services)degpos.eq.raindexed_DE.icrsDeclination (ICRS) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services)degpos.eq.decindexedMasClass II methanol maser associated? (+=yes)meta.codecharU22Display data from Urquhart+, 2022, J/MNRAS/510/3389 within 3"meta.ref.urlintnullableWISEDisplay the WISE (II/311) and unWISE (II/363) data within 3"meta.ref.urlcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameSource name based on Galactic coordinatemeta.id;meta.maincharGroupGroup of WISE Green Objects (I, II or III); See Section 3.1src.classcharGLONGalactic longitude (1)degpos.galactic.lonGLAT[-1.7/1.8] Galactic latitude (1)degpos.galactic.latModelName of beat-fit model set from Robitaille+ 2017A&A...600A..11Rmeta.id;stat.param;meta.modelledcharMstar[0.9/15.8] Protostellar mass (2)solMassphys.massfloate_Mstar[0/18.4] Uncertainty in Mstar (3)solMassstat.errorfloatMdot[0.28/503] Accretion rate (4)0.0001solMass.yr**-1phys.mass.lossfloatDist[1.6/21.8] Distance (5)kpcpos.distancefloatMMassive star threshold (6)meta.codecharHHigh mass star (7)meta.codechar