J/ApJS/268/1ivo://CDS.VizieR/J/ApJS/268/1CDSDong Y.Sun Y.Xu YeLin Z.Bian S.Hao C.Liu D.Li Y.Yang Ji,Su Y.Zhou X.Zhang S.Yan Q.-Z.Chen Z.2024-11-12T11:24:54Z2023-12-22T15:08:03ZCDS support team

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

cds-question@unistra.frmolecular-cloudsco-line-emissionmilky-way-galaxymillimeter-astronomysubmillimeter-astronomyWe present the results of an unbiased 12CO/13CO/C18O (J=1-0) survey in a portion of the third Galactic quadrant (TGQ): 219.75{deg}<=l<=229.75{deg} and -5.25{deg}<=b<=5.25{deg}. The high-resolution and high-sensitivity data sets help to unravel the distributions and physical properties of the molecular clouds (MCs) in the mapped area. In the LSR velocity range from ~-1 to ~85km/s, the molecular material successfully traces the Local, Perseus, and Outer arms. In the TGQ, the Outer arm appears to be more prominent than that in the second Galactic quadrant (SGQ), but the Perseus arm is not as conspicuous as that in the SGQ. A total of 1502 ^12^CO, 570 ^13^CO, and 53 C^18^O molecular structures are identified, spanning over ~2 and ~6 orders of magnitude in size and mass, respectively. Tight mass-radius correlations and virial parameter-mass anticorrelations are observable. Yet, it seems that no clear correlations between velocity dispersion and effective radius can be found over the full dynamic range. The vertical distribution of the MCs renders evident pictures of the Galactic warp and flare.2023ApJS..268....1Dhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/268/1CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toVII/50 : CO Radial Velocities Toward Galactic H II Regions (Blitz+ 1982)VIII/39 : Composite CO Survey of the Milky Way (Dame+ 1987)J/A+A/327/325 : Distances of molecular cloud (May+, 1997)J/A+AS/127/181 : H2O maser sources new detections (Han+ 1998)J/A+A/368/845 : Arcetri Cat. of H2O maser sources (Valdettaro+, 2001)J/A+A/397/133 : Star-forming complexes in the Galaxy (Russeil+, 2003)J/PASJ/56/313 : 13CO survey of Mon & CMa molecular clouds (Kim+, 2004)J/PASJ/59/1185 : Water maser in galactic IRAS sources (Sunada+, 2007)J/ApJ/672/930 : Distant CO clouds in 3rd Galactic quadrant (Vazquez+, 2008)J/ApJ/723/492 : GRS molecular clouds (Roman-Duval+, 2010)J/MNRAS/418/1689 : Red MSX water maser and ammonia emissions (Urquhart+, 2011)J/ApJ/772/45 : Hi-GAL obs.: star formation in 3rd quadrant (Elia+, 2013)J/MNRAS/431/1752 : ATLASGAL 6.7GHz methanol masers (Urquhart+, 2013)J/MNRAS/435/400 : ATLASGAL. Compact HII regions (Urquhart+, 2013)J/ApJS/212/1 : The WISE catalog of Galactic HII regions (Anderson+, 2014)J/A+A/584/A92 : Gal. Cold Cores. IV. Cold sub-mm sources (Montillaud+, 2015)J/A+A/594/A58 : Hi-GAL l=224deg region CO(1-0) data cubes (Olmi+, 2016)J/A+A/594/A28 : Planck Cat. of Galactic cold clumps (PGCC) (Planck+, 2016)J/ApJ/834/57 : MW molecular clouds from ^12^CO (Miville-Deschenes+, 2017)J/ApJ/885/131 : ~200 high-mass SFR plx & PM with VLBI (Reid+, 2019)J/A+A/633/A147 : FQS. Galactic Plane CO survey (Benedettini+, 2020)J/ApJS/251/26 : CO outflow cand. toward W3/4/5 complex. II. (Li+, 2020)J/A+A/654/A144 : 13CO (1-0) data molecular cloud cat. (Benedettini+, 2021)J/ApJS/252/20 : CO survey of the CMa OB1 complex (Lin+, 2021)J/ApJS/254/3 : CO obs. of molecular clouds in the MW midplane (Ma+, 2021)J/ApJS/261/37 : ^13^CO emission in MWISP ^12^CO mol. clouds (Yuan+, 2022)http://www.radioast.nsdc.cn/mwisp.php : MWISP home pagehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/268/1https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/268/1http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/268/1https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJS/268/1https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJS/268/1http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJS/268/1GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJS/268/1/table7 (Physical properties of molecular structures)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/268/1/table7?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/268/1/table7?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/268/1/table7?GETtext/xml+votable180.050000true106.47445-12.511870.0055555555555555564/1352 1354-1355 5/5215 5237 5239 5385-5387 5390 5412 5414-5415 5432 6/20854-20855 20857 20859 20945 20981 20983 21538-21539 21552 21554-21556 21558 21564 21566 21608 21652-21654 21706-21707 21732 21734 21736-21737 22017 22020-22021 22032https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJS/268/1?format=asciiMillimeterRadiodefaultJ/ApJS/268/1/table7Physical properties of molecular structuresRad[0/28]? Effective radiuspcphys.size.radiusfloatnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordinte_GLAT[0.004/0.7] Galactic Latitude dispersiondegstat.errorfloatWCO[0.2/12]? Average integrated intensity across area of cloudK.km/sphot.flux.density;em.line.CO;stat.meanfloatnullableTpeak[1/33]? Peak main-beam brightness temperatureKphys.temperature;stat.maxfloatnullableDist[0.2/9.7] Heliocentric distance (2)kpcpos.distancefloatArea[0/2445]? Areapc**2phys.areafloatnullableMass[0/104464]? Mass (3)solMassphys.massdoublenullablesigma[1.4/149]? Mass surface densitysolMass.pc**-2phot.flux.density.sbfloatnullableMvir[0.6/118542]? Virial masssolMassphys.massdoublenullablealpha[0.3/395]? Virial parameterphys.mass;arith.ratiofloatnullableArmSpiral arm (4)meta.notecharFlag[12/18] Emission line (5)meta.code.errorint12CO[4/1498]? Matching 12CO structure index (6)meta.idintnullableSimbadSimbad column added by the CDSmeta.ref.urlchar_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.decindexedMWISPMWISP project source identifier (1)meta.id;meta.maincharSeq[1/2125] Running sequence numbermeta.idintVlsr[-1.2/85] Average LSR velocitykm/sphys.veloc;pos.lsrfloate_Vlsr[0.09/2.3] Velocity dispersionkm/sstat.error;phys.veloc;pos.lsrfloatGLON[219.7/230] Galactic Longitudedegpos.galactic.lone_GLON[0.003/1.1] Galactic Longitude dispersiondegstat.errorfloatGLAT[-5.3/5.3] Galactic Latitudedegpos.galactic.lat