J/ApJS/241/18ivo://CDS.VizieR/J/ApJS/241/18doi:10.26093/cds/vizier.22410018CDSYang K.Chen X.Shen Z.-Q.Li X.-Q.Wang J.-Z.Jiang D.-R.Li J.,Dong J.Wu Y.-J.Qiao H.-H.2026-08-25T08:56:37Z2019-12-30T15:13:18ZCDS support team

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

cds-question@unistra.frastrophysical-masersradio-astronomyinterstellar-mediuminfrared-photometryWe report the results of our systematic survey for Galactic 6.7GHz Class II CH_3_OH maser emission toward a sample of young stellar objects. The survey was conducted with the Shanghai Tianma Radio Telescope (TMRT). The sample consists of 3348 sources selected from the all-sky Wide-field Infrared Survey Explorer (WISE) point-source catalog. We discussed the selection criteria in detail and the detection results of those at high Galactic latitudes (i.e., |b|>2{deg}) in a previous paper (Paper I; Yang+ 2017, J/ApJ/846/160). Here, we present the results from the survey of those at low Galactic latitudes, i.e., |b|<2{deg}. Of 1875 selected WISE point sources, 291 positions that were actually associated with 224 sources that were detected with CH_3_OH maser emission. Among them, 32 are newly detected. A majority of the newly detected sources are associated with bright WISE sources. The majority of the detected sources (209/224=93.3%) are quite close to the Galactic Plane (|b|<1{deg}) and lie on the inner spiral arms with positive local standard of rest velocities. The detection rate and the color-color distribution of our detection are all matched with our anticipation. Combining with detections from previous surveys, we compile a catalog of 1085 sources with 6.7GHz CH_3_OH maser emission in our Galaxy.2019ApJS..241...18Yhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/241/18CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toVIII/96 : 6-GHz methanol multibeam maser catalogue (Caswell+, 2010-12)J/MNRAS/291/261 : Methanol maser of IRAS-selected sources (Walsh+ 1997)J/A+A/403/1095 : 6.7GHz methanol masers survey of low-mass YSO (Minier+, 2003)J/A+A/432/737 : General Catalog of 6.7GHz Methanol Masers (Pestalozzi+, 2005)J/MNRAS/377/571 : GLIMPSE 6.7GHz methanol masers non-det. (Ellingsen+, 2007)J/ApJ/656/255 : Arecibo methanol maser Galactic plane survey (Pandian+, 2007)J/ApJS/177/515 : 6cm and 20cm survey of Galactic Center (Law+, 2008)J/ApJ/702/1615 : CH_3_OH maser survey of EGOs (Cyganowski+, 2009)J/A+A/501/539 : RMS survey. 6cm observations of YSOs (Urquhart+, 2009)J/ApJ/717/L133 : Formaldehyde maser flares in IRAS 18566+0408 (Araya+, 2010)J/AN/333/634 : Torun methanol source catalogue (Szymczak+, 2012)J/MNRAS/435/400 : ATLASGAL. Properties of compact HII regions (Urquhart+, 2013)J/A+A/565/A75 : ATLASGAL: dust condensations in Gal. plane (Csengeri+, 2014)J/ApJ/783/130 : Parallaxes of high mass star forming regions (Reid+, 2014)J/MNRAS/443/1555 : ATLASGAL massive star forming clumps (Urquhart+, 2014)J/MNRAS/439/2584 : Southern methanol masers at 36 and 44GHz (Voronkov+, 2014)J/A+A/600/L10 : Massive cluster progenitors from ATLASGAL (Csengeri+, 2017)J/A+A/601/A60 : ATLASGAL: Massive cluster progenitors (Csengeri+, 2017)J/ApJ/846/160 : 6.7GHz Class II methanol maser survey (Yang+, 2017)J/A+A/617/A89 : G328.2551-0.5321 ALMA images (Csengeri+, 2018)J/ApJ/854/170 : Methanol (CH_3_OH) and OH masers in NGC 6334I (Hunter+, 2018)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/241/18https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/241/18http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/241/18https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJS/241/18https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJS/241/18http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJS/241/18GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJS/241/18/table1 (WISE-selected sources for the Shanghai Tianma Radio Telescope (TMRT) survey of methanol maser)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/241/18/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/241/18/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/241/18/table1?GETtext/xml+votable180.050000true278.0015-11.85886110.005555555555555556Cone search capability for table J/ApJS/241/18/table3 (192 already detected 6.7GHz methanol masers)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/241/18/table3?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/241/18/table3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/241/18/table3?GETtext/xml+votable180.050000true276.9164583-11.24230560.005555555555555556Cone search capability for table J/ApJS/241/18/table6 (A 6.7GHz CH_3_OH maser sources catalog)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/241/18/table6?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/241/18/table6?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/241/18/table6?GETtext/xml+votable180.050000true267.10791667-29.201638890.0055555555555555565/825 3242 3577 3579 3585 3588-3589 3650 3654-3655 3661 3666-3667 3672 3856 3860 3862 7206-7207 7228 7278 7377 7380 7383 7564-7565 7578-7579 7582 7604-7605 7648 7651 7654 7672-7673 7678-7679 10453 10542-10543 10556 10624 6/1299 1307 1311 1330 1337-1338 1340-1341 1354 1445 1464 1759 1781 1783 1787 1789-1791 1797 1806-1809 1831 1834 1923 1926 1928 1932 1960 3011 3031 3038 3046-3047 3052 3057-3061 3063 3157 3161 3173 3175 3187 3195-3196 3198 3261-3262 3268-3269 3275 3282 3290 3299 3307-3308 3310 3606 3614-3615 3630-3631 3633-3635 3640 3648-3650 3658 3713 3715 3718-3719 3724-3726 3744 3746 12962 12974-12975 12986-12987 12990-12991 13034 14063 14248 14252 14254-14255 14263 14266-14267 14269-14270 14287 14290 14293-14294 14297-14299 14301-14304 14306-14307 14312 14314-14315 14325 14327 14336-14337 14348 14360 14364-14365 14400 14402-14406 14409 14411-14414 14417-14418 14422-14423 14426-14430 14437 14452-14453 14594-14595 14598 14604-14605 14607 14610-14611 14614 14624-14625 14627-14628 14630-14631 14640-14642 14655 14658-14659 14662-14663 14674-14675 14678-14679 14681-14683 14685-14687 14692-14694 14704-14705 14707 14709 15362-15363 15367-15368 15370 15374-15375 15377 15379-15380 15382-15383 15385-15387 15390 15392 15409 15428-15430 15433 15435 15437-15438 15444 15447 15452-15453 15456 15473 15620-15621 15624 15626 15629 15632-15634 15636 15667 15671 15676 15680-15681 15684 21439 21458 21510 22122 22855 23638 23764 23969 23982 24320 24325 24361 24365 24367-24368 24378 24466 24468 24472 24474 24487 24498-24499 24501 24503 24505 24507-24508 24554 28808-28809 28811-28813 28817 28874-28875 28896-28897 28900-28901 28918-28919 29090-29092 29094 29096-29097 29100-29101 29103 29116 29118-29119 29154 29160 29461 29463 29504-29505 29507 29513 29517 29519 29526-29529 29531 29553 29556 30216 30218-30220 30222-30223 30238 30240-30241 30243-30245 30247 30249 30252-30253 30267-30269 30271 30306 30310 30334 30401 30403-30406 30425 30428-30429 30431 30596 30598 30600-30602 30622-30623 30625 30628-30629 30640-30641 30643-30645 30647 30666-30667 30682 30701 30706-30707 30710-30711 31757 32081 32084-32085 37244 37334 37343 37372 37839 37846 37848 37850 37886-37887 37893 37897 37899-37900 37903 37921 37923-37924 37938 38020 38024 39251 39282 39384 41597 41599 41653-41655 41657-41658 41660-41661 41671 41673-41674 41676-41678 41681 41683-41686 41688 41696 41706 41758-41759 41765-41767 41769-41770 41772-41773 41776-41778 41780-41781 41798-41799 41801 41804-41805 41809-41811 41816-41817 41820 41824 42155 42159 42207 42210-42211 42213-42217 42228-42230 42376 42378-42379 42381-42383 42387 42390-42393 42396-42398 42417 42436 42438-42441 42444-42445 42448 42450-42451 42454-42457 42460-42462 42500-42502 42504 42512 42515 43013 43015 43018-43021 43024 43026 43040-43041https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJS/241/18?format=asciiInfraredRadiodefaultJ/ApJS/241/18/table1WISE-selected sources for the Shanghai Tianma Radio Telescope (TMRT) survey of methanol maserrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeq[1/1875] Internal index numbermeta.id;meta.mainintGLON[20/185.2] Galactic longitudedegpos.galactic.lonGLAT[-2/2] Galactic latitudedegpos.galactic.latdoubleRAJ2000Hour of Right Ascension (J2000)pos.eq.ra;meta.mainDEJ2000Degree of Declination (J2000)pos.eq.dec;meta.mainW1mag[3.7/16] WISE 3.4 micron band apparent magnitudemagphot.mag;em.IR.3-4umfloatW2mag[0.7/12] WISE 4.6 micron band apparent magnitudemagphot.mag;em.IR.4-8umfloatW3mag[-3/12] WISE 12 micron band apparent magnitudemagphot.flux.density;em.IR.8-15umfloatW4mag[-6.6/6] WISE 22 micron band apparent magnitudemagphot.flux.density;em.IR.15-30umfloatW1-W2[2/6.7] WISE (W1-W2) color indexmagphot.color;em.IR;em.IRfloatW3-W4[2/9.7] WISE (W3-W4) color indexmagphot.color;em.IR;em.IRfloatWISEADisplay the AllWISE data (II/328) within 0.5"meta.ref.urlcharJ/ApJS/241/18/table3192 already detected 6.7GHz methanol masersEpochObservation epochtime.epoch;obsnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameSource identifier --GLLL.lll+BB.bbb(Left/Right)meta.id;meta.maincharprimaryRAJ2000Hour of Right Ascension (J2000) (1)pos.eq.ra;meta.mainDEJ2000Degree of Declination (J2000) (1)pos.eq.dec;meta.mainDeltaVl[-71.4/112.1] Lower velocity interval of maser emissionkm/sphys.veloc;arith.difffloatDeltaVh[-68.1/126] Upper velocity interval of maser emissionkm/sphys.veloc;arith.difffloatVpeak[-69.2/121.1] Peak emission velocitykm/sphys.veloc;phys.emissMeasure;stat.maxfloatSp[0.2/406.2] Peak flux densityJyphot.flux.density;em.radio.6-12GHzfloatSi[0.06/455.4] Integrated flux densityJy.km/sphot.flux.density;em.radio.6-12GHzfloatDist[1.6/15.5]? Kinematic distance estimate (2)kpcpos.distancefloatnullableRefDiscovery reference (G1)meta.ref;pos.framecharNnDisplay previous reference data (link to Table 4)meta.ref.urlintnullableWISEADisplay the AllWISE data (II/328) within 0.5"meta.ref.urlcharJ/ApJS/241/18/table4Comparison between the spectral profiles of our survey and the previous surveysNameSource identifier --GLLL.lll+BB.bbb(Left/Right)meta.id;meta.maincharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintPNamePrevious surveys identifiersmeta.idcharRefPrevious survey reference (G1)meta.ref;pos.framecharNotesAdditional notesmeta.notecharJ/ApJS/241/18/table6A 6.7GHz CH_3_OH maser sources catalogDeltaVl[-135.5/151] Lower velocity interval of maser emissionkm/sphys.veloc;arith.difffloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeq[1/1085] Internal index numbermeta.idintNameSource identifier --LLL.lll+BB.bbb(Left)meta.id;meta.maincharRAJ2000Hour of Right Ascension (J2000)pos.eq.ra;meta.mainDEJ2000Degree of Declination (J2000)pos.eq.dec;meta.mainDeltaVh[-122/159] Upper velocity interval of maser emissionkm/sphys.veloc;arith.difffloatVpeak[-131.2/157]? Peak emission velocitykm/sphys.veloc;phys.emissMeasure;stat.maxfloatnullableSp[-1.2/5196]? Peak flux densityJyphot.flux.density;em.radio.6-12GHzfloatnullableRefSource reference (1)meta.ref;pos.framechar