J/MNRAS/366/1096ivo://CDS.VizieR/J/MNRAS/366/1096doi:10.26093/cds/vizier.73661096CDSBusfield A.L.Purcell C.R.Hoare M.G.Lumsden S.L.Moore T.J.T.,Oudmaijer R.D.2024-07-02T20:16:49Z2006-11-23T21:23:07ZCDS support team

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

cds-question@unistra.fryoung-stellar-objectsstellar-distanceh-i-line-emissionWe investigate the use of HI data to resolve the near/far ambiguity in kinematic distances of massive young stellar object (MYSO) candidates. Kinematic distances were obtained from ^13^CO 1-0 (and N_2_H^+^) spectral-line observations with the Mopra Telescope towards 94 candidates selected from the Red MSX Source (RMS) survey in the fourth Galactic quadrant (282{deg}<l<350{deg}). HI data from the Southern Galactic Plane Survey (SGPS) were used in conjunction with the HI self-absorption (SA) technique to determine the near or far distance. We resolved the kinematic distance ambiguity to 70 per cent of the sources. We can also simultaneously solve for any multiple line-of-sight component sources. We discuss the advantages and disadvantages of this technique in comparison with other methods, and also perform confidence checks on the reliability of using the HI SA technique.2006MNRAS.366.1096Bhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/366/1096CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toV/114 : MSX6C Infrared Point Source Catalog (Egan+ 2003)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/366/1096https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/366/1096http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/366/1096https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/366/1096https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/366/1096http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/366/1096GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/366/1096/CO (Kinematic parameters of ^13^CO(1-0) parameters)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/366/1096/CO?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/366/1096/CO?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/366/1096/CO?GETtext/xml+votable180.050000true153.332524-56.9257270.0055555555555555566/37364 37366-37367 37373 37893 37906 37923 37926 38024 41595 41597 41631 41647 41660 41677 41679 41696 41766 41769 41772 41777-41778 41804 41811-41812 41816-41817 42159 42168-42169 42172 42174 42206-42207 42213-42214 42220 42224-42226 42229 42376 42378-42382 42390-42392 42394-42398 42435-42436 42438-42439 42441 42444 42447 43020https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/366/1096?format=asciiRadiodefaultJ/MNRAS/366/1096/COKinematic parameters of ^13^CO(1-0) parametersrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTSimbad column added by the CDSmeta.id;meta.datasetcharMSXMSX object name in Galactic coordinatesmeta.id;meta.maincharn_MSX[a] Note on MSX (1)meta.notecharm_MSX[1/9]? Weaker line-of-sight componentsmeta.code.multipintnullableVlsrLSR velocity of the ^13^CO component(s), or central N_2_H^+^ maser linekm/sphys.veloc;pos.lsrfloatDnear? Calculated near distance (2) (6)kpcpos.distance;pos.heliocentricfloatnullablen_Dnear[*] * when correct distance solved (3)meta.notechare_Dnear? rms uncertainty on Dnear when correct distance solvedkpcstat.errorfloatnullableDfar? Calculated far distance (2)kpcpos.distance;pos.heliocentricfloatnullablen_Dfar[*] * when correct distance solvedmeta.notechare_Dfar? rms uncertainty on Dfar when correct distance solvedkpcstat.errorfloatnullablez? Scale-height to the Galactic centrepcpos.cartesian.z;pos.galacticfloatnullableRgcDistance to the Galactic centrekpcpos.distance;pos.galactocentricfloatR(FN ?) Adopted distance (6) (4)meta.notecharNotesNotes (5)meta.note_GlonPosition (from MSX6C catalog V/114) (longitude part)degpos.galactic.lon_GlatPosition (from MSX6C catalog V/114) (latitude part)degpos.galactic.lat