J/ApJS/196/9ivo://CDS.VizieR/J/ApJS/196/9doi:10.26093/cds/vizier.21960009CDSChen X.Ellingsen S.P.Shen Z.-Q.Titmarsh A.Gan C.-G.2017-10-16T14:57:26Z2011-12-07T13:21:08ZCDS support team

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

cds-question@unistra.frinfrared-sourcesmillimeter-astronomysubmillimeter-astronomyinterstellar-masersinterstellar-mediumradio-astronomyWe report the results of a systematic survey for 95GHz class I methanol masers toward a new sample of 192 massive young stellar object candidates associated with ongoing outflows (known as extended green objects or EGOs) identified from the Spitzer Galactic Legacy Infrared Mid-Plane Survey Extraordinaire (GLIMPSE) survey. The observations were made with the Australia Telescope National Facility (ATNF) Mopra 22m radio telescope and resulted in the detection of 105 new 95GHz class I methanol masers. For 92 of the sources our observations provide the first identification of a class I maser transition associated with these objects (i.e., they are new class I methanol maser sources). Our survey proves that there is indeed a high detection rate (55%) of class I methanol masers toward EGOs. Comparison of the GLIMPSE point sources associated with EGOs with and without class I methanol maser detections shows that they have similar mid-IR colors, with the majority meeting the color selection criteria -0.6<[5.8]-[8.0]<1.4 and 0.5<[3.6]-[4.5]<4.0. Investigations of the Infrared Array Camera and Multiband Imaging Photometer for Spitzer 24um colors and the associated millimeter dust clump properties (mass and density) of the EGOs for the sub-samples based on the class of methanol masers they are associated with suggest that the stellar mass range associated with class I methanol masers extends to lower masses than for class II methanol masers, or alternatively class I methanol masers may be associated with more than one evolutionary phase during the formation of a high-mass star.2011ApJS..196....9Chttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/196/9CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/ApJS/188/123 : The Bolocam Galactic Plane Survey. II. (Rosolowsky+, 2010)J/ApJ/702/1615 : Class I and II CH_3_OH maser survey of EGOs (Cyganowski+,J/AJ/136/2391 : GLIMPSE Extended Green Objects catalog (Cyganowski+, 2008)J/MNRAS/301/640 : Ultracompact H II regions studies. II. (Walsh+, 1998)J/ApJS/91/347 : A 5-GHz VLA Survey of the Galactic Plane (Becker+ 1994)J/ApJS/91/659 : Ultracompact HII regions radio images (Kurtz+ 1994)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/196/9https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/196/9http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/196/9https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJS/196/9https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJS/196/9http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJS/196/9GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJS/196/9/table1 (Sample parameters)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/196/9/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/196/9/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/196/9/table1?GETtext/xml+votable180.050000true272.205417-20.0991670.0055555555555555565/7377 6/14341 14355 29091 29094 29097 29100 29101 29103 29113 29461 29505 29507 29528 29529 29535 30218 30219 30245 30256 30260 30318 30319 30330 30405 30420 30422 30423 30594 30595 30618 30622 30644 30692 30694 30719 32085 41597 41599 41653 41655 41661 41671 41676 41677 41681 41682 41683 41688 41767 41780 41802 41807 41811 41813 41814 41815 41816 41817 41820 42159 42169 42170 42171 42172 42173 42207 42211 42213 42214 42215 42225 42229 42376 42378 42379 42382 42383 42387 42390 42392 42397 42398 42436 42438 42441 42497 42498 42512 42513 430196.294766091792609e-23 1.8058623843283312e-22https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJS/196/9?format=asciiInfraredRadiodefaultJ/ApJS/196/9/table3Observed properties of 95GHz class I methanol maser sources detectedrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintEGOSource name (GLLL.ll+B.bb)meta.id;meta.maincharSIntegrated flux density at 95GHz (1)Jy.km/sphot.flux.density;em.mm.50-100GHzfloate_SFormal uncertainty in SJy.km/sstat.errorfloatVLSRVelocity at peak maser emission (1)km/sphys.veloc;pos.lsrfloate_VLSRFormal uncertainty in VLSRkm/sstat.error;phys.veloc;pos.lsrfloatDelVLine width; FWMH (1)km/sspect.line.widthfloate_DelVFormal uncertainty in DelVkm/sstat.errorfloatPkPeak flux density at 95GHz (1)Jyphot.flux.density;em.mm.50-100GHzfloatrms? 1{sigma} noise in observed maser spectrumJystat.snr;phot.flux.densityfloatnullableSInt? Total integrated flux density at 95GHz (2)Jy.km/sphot.flux.density;em.mm.50-100GHzfloatnullableDist? Kinematic distance (3)kpcpos.distance;pos.heliocentricfloatnullableLm? Integrated luminosity (4)1e-06solLumphys.luminosityfloatnullableJ/ApJS/196/9/table7Properties of mm dust clumps associated with methanol masersrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintEGOEGO name (GLL.ll+B.bb except for IRDC18223-3)meta.id;meta.maincharn_EGO[d-j, ] Notes on individual sources (1)meta.notecharBGPSBGPS name (GLLL.lll+BB.bbb) (2)meta.id.crosscharl_RobjLimit flag on Robjmeta.code.errorcharRobjAssociated 1.1mm BGPS source radius (3)arcsecphys.angSize;srcintSintAssociated 1.1mm BGPS source flux density (3)Jyphot.flux.density;em.mm.200-400GHzfloatMassGas mass of clump (4)solMassphys.massintl_nH2Limit flag on nH2meta.code.errorcharnH2Beam-averaged volume density of clump (4)1000cm**-3phys.densityfloatNH2Beam-averaged column density N(H2) of clump (5)1e+22cm**-2phys.columnDensityfloatAvReddening vector A_{nu}_ of clump (5)phys.absorptionintSimbadNameSimbad column added by the CDSmeta.idcharJ/ApJS/196/9/table1Sample parametersEGOSource designation (GLLL.ll+B.bb)meta.id;meta.maincharprimaryrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintn_EGONote(s) on individual sources (1)meta.notecharPSimbad column added by the CDSmeta.ref.urlcharRAJ2000Hour of right ascension (J2000) (2)pos.eq.ra;meta.mainDEJ2000Degree of declination (J2000)pos.eq.dec;meta.mainDC[Y/N] EGO associated with an IR dark cloud?, from Cyganowski et al. (2008, Cat. J/AJ/136/2391)meta.codecharII[YN-] EGO associated with a 6.7GHz Class II methanol maser? (3)meta.codecharOH[YN-] EGO associated with a 1665 or 1667MHz OH maser? (4)meta.codecharUC[YN-] EGO associated with an ultra-compact HII region? (4)meta.codecharmm[YN-] EGO associated with a 1.1mm continuum source? (4)meta.codecharRk[1,5]? Table selection for the source (5)meta.noteintnullableI[YN-] Detection with 95GHz class I methanol masers in our observations?meta.codecharC08Display the GLIMPSE EGOs catalog (Cyganowski+ 2008, Cat. J/AJ/136/2391)meta.ref.urlcharSimbadNameSimbad column added by the CDSmeta.idchar