J/AJ/154/140ivo://CDS.VizieR/J/AJ/154/140doi:10.26093/cds/vizier.51540140CDSWhitaker J.S.Jackson J.M.Rathborne J.M.Foster J.B.Contreras Y.,Sanhueza P.Stephens I.W.Longmore S.N.2019-08-20T07:32:17Z2018-07-09T09:51:36ZCDS support team

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

cds-question@unistra.frmolecular-cloudssurveysmillimeter-astronomysubmillimeter-astronomyradial-velocitystellar-distanceUsing molecular-line data from the Millimetre Astronomy Legacy Team 90 GHz Survey (MALT90), we have estimated kinematic distances to 1905 molecular clumps identified in the ATLASGAL 870 {mu}m continuum survey over the longitude range 295{deg}<l<350{deg}. The clump velocities were determined using a flux-weighted average of the velocities obtained from Gaussian fits to the HCO^+^, HNC, and N_2_H^+^ (1-0) transitions. The near/far kinematic distance ambiguity was addressed by searching for the presence or absence of absorption or self-absorption features in 21 cm atomic hydrogen spectra from the Southern Galactic Plane Survey. Our algorithm provides an estimation of the reliability of the ambiguity resolution. The Galactic distribution of the clumps indicates positions where the clumps are bunched together, and these locations probably trace the locations of spiral arms. Several clumps fall at the predicted location of the far side of the Scutum-Centaurus arm. Moreover, a number of clumps with positive radial velocities are unambiguously located on the far side of the Milky Way at galactocentric radii beyond the solar circle. The measurement of these kinematic distances, in combination with continuum or molecular-line data, now enables the determination of fundamental parameters such as mass, size, and luminosity for each clump.2017AJ....154..140Whttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/154/140CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/ApJS/197/25 : MALT90 pilot survey (Foster+, 2011)J/ApJ/777/157 : 90GHz obs. of high-mass star-forming regions (Hoq+, 2013)J/ApJ/815/130 : High-mass molecular clumps from MALT90 (Guzman+, 2015)J/ApJ/824/29 : ATLASGAL clumps with IRAS flux and MALT90 dataJ/MNRAS/473/1059 : Complete sample of Galactic clump propertieshttp://malt90.bu.edu/ : MALT90 home pagehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/154/140https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/154/140http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/154/140https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/154/140https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/154/140http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/154/140GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/154/140/table1 (Results of the kinematic distance analysis)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/154/140/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/154/140/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/154/140/table1?GETtext/xml+votable180.050000true185.6188-62.513060.0055555555555555565/10413 10444 10445 10451 10453 10542 10543 10556 10595 10599 10624 6/41595 41597 41599 41657 41658 41660 41661 41663 41671 41673 41675 41676 41677 41678 41681 41682 41683 41684 41685 41688 41697 41758 41759 41762 41763 41766 41767 41769 41770 41772 41773 41799 41801 41802 41803 41809 41811 41816 41817 41820 41824 41825 42158 42159 42206 42207 42210 42211 42213 42214 42215 42216 42217 42228 42229 42230 42376 42378 42379 42387 42390 42391 42392 42393 42434 42435 42436 42438 42439 42440 42441 42444 42445 42500 42501 42502 42512 42513 43013 43014 43015 43020 43021 43024 43025 43026https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/154/140?format=asciiMillimeterdefaultJ/AJ/154/140/table1Results of the kinematic distance analysisSimbadNameSimbad column added by the CDSmeta.idcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintAGALClump name (AGAL LLL.lll+BB.bbb)meta.id;meta.maincharGLON[299.597/349.997] Galactic longitudedegpos.galactic.lonGLAT[-1.157/1.314] Galactic latitudedegpos.galactic.latRV[-137.64/35.56] Radial velocitykm/sphys.veloc;pos.heliocentricfloatTV[-169.7/-27.91] Tangent velocitykm/sphys.veloc.transversefloatRgal[2.19/15.51] Galactocentric radiuskpcpos.distance;pos.galactocentricfloatKDt[4.2/8.37] Kinematic distance to tangent pointkpcpos.distancefloatKDn[0.02/7.8]? Near kinematic distancekpcpos.distancefloatnullableb_KDn[0/7.49] Lower boundary range to KDnkpcpos.distance;stat.minfloatB_KDn[0.11/7.82]? Upper boundary range to KDnkpcpos.distance;stat.maxfloatnullableKDf[4.27/23.8] Far kinematic distancekpcpos.distancefloatb_KDf[4.27/19.94] Lower boundary range to KDfkpcpos.distance;stat.minfloatB_KDf[4.27/31.23] Upper boundary range to KDfkpcpos.distance;stat.maxfloatPHISA[0/0.96] Probability of a HISA absoprtion dipstat.fit.goodnessfloatMabsv[-154.17/199] Minimum velocity of significant absorptionkm/sspect.dopplerVelocfloatDcode[1/24] Analysis process flag (1)meta.codeintDflagKinematic distance ambiguity resolution flag (1)meta.code.error;pos.distance;pos.angResolutioncharDqual[0/9] Integer flag for near/far ambiguity resolution (2)meta.codeintDbest[0.02/23.8] Best guess for kinematic distancekpcpos.distance;pos.heliocentricfloatb_Dbest[0/19.94] Lower boundary range to Dbestkpcpos.distance;pos.heliocentric;stat.minfloatB_Dbest[1/31.23] Upper boundary range to Dbestkpcpos.distance;pos.heliocentric;stat.maxfloat_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.ranullableindexed_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.decnullableindexed