J/A+A/532/A127ivo://CDS.VizieR/J/A+A/532/A127doi:10.26093/cds/vizier.35320127CDSDu Z.M.Zhou J.J.Esimbek J.Han X.H.Zhang C.P.2017-09-27T05:55:52Z2011-12-27T11:30:34ZCDS support team

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

cds-question@unistra.frh-ii-regionsinterstellar-mediumradio-astronomyWe report simultaneous H110{alpha} and H_2_CO line observations with the 25m radio telescope of Nanshan station toward 251 HII regions. We used the H110{alpha} line to establish the velocity of the HII regions and H_2_CO absorption lines to distinguish between near and far distances. We detected the H110{alpha} RRLs in 28 sources and H_2_CO absorption lines in 59 sources. In the latter case, 43 features had not previously been observed. H_2_CO and H110{alpha} lines were simultaneously detected toward 23 HII regions. We resolved the kinematic distance ambiguities for 14 HII regions and 20 intervening molecular clouds.2011A&A...532A.127Dhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/532/A127CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toII/125 : IRAS catalogue of Point Sources, Version 2.0 (IPAC 1986)VIII/58 : Survey of Radio HII Regions in Northern Sky (Lockman+ 1989)J/ApJS/165/338 : Radio recombination lines in HII regions (Quireza+, 2006)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/532/A127https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/532/A127http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/532/A127https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/532/A127https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/532/A127http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/532/A127GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/532/A127/table1 (Observed sources)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/532/A127/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/532/A127/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/532/A127/table1?GETtext/xml+votable180.050000true20.884708361.81352780.0055555555555555566/857 3630 14307 14317 14624 14691 14693 21430 21458 22876 23982 24554 28827-28828 28830-28831 28917 28919 29091 29101 29112 29114-29116 29118 29160 29505 29510 29515 29533 29556 30218 30258 30262 30268-30269 30318 30328 30405 30422 30624 30644-30645 30691 306943.2001662755499532e-24 1.9864425968556103e-21https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/532/A127?format=asciiRadiodefaultJ/A+A/532/A127/table1Observed sourcesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSourceSource namemeta.id;meta.maincharprimaryMCSimbad column added by the CDSmeta.ref.urlcharNameAlias namemeta.idcharRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.mainrmsThe rms of the spectral lines (1)instr.det.noisefloatS100um? Flux density at 100{mu}mkJyphot.flux.density;em.IR.60-100umfloatnullableS6cm? Flux density at 6cm (2)Jyphot.flux.density;em.radio.3-6GHzfloatnullableNoteReference (3)meta.notecharJ/A+A/532/A127/table2H110{alpha} line parameters of sourcesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintf_Source[*] Changes (1)meta.codecharSourceSource namemeta.id;meta.maincharVLSR? Local Standard of Rest Velocitykm/sphys.veloc;pos.lsrfloatnullablee_VLSR? The 1{sigma} error in VLSRkm/sstat.error;phys.veloc;pos.lsrfloatnullableFWHM? Full-Width at Half-Maximumkm/sphys.angSizefloatnullablee_FWHM? The 1{sigma} error in FWHMkm/sstat.error;phys.angSizefloatnullableSH110a? The H110{alpha} flux density at 4874.1570MHzJyphot.flux.density;em.radio.3-6GHzfloatnullablee_SH110a? The 1{sigma} error in SH110aJystat.errorfloatnullableSint? Integrated flux density at 4874.1570MHzJy.km/sphot.flux.density;em.radio.3-6GHzfloatnullablee_Sint? The 1{sigma} error in SintJy.km/sstat.errorfloatnullableJ/A+A/532/A127/table3H_2_CO line parametersSourceSource namemeta.id;meta.maincharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintf_Source[*] Changes (1)meta.codecharMC[1/4]? H_2_CO molecular cloud number within the source (G1)meta.code.multipintnullableVLSR? Local Standard of Rest Velocitykm/sphys.veloc;pos.lsrdoublenullablee_VLSR? The 1{sigma} error in VLSRkm/sstat.error;phys.veloc;pos.lsrfloatnullableFWHM? Full-Width at Half-Maximumkm/sphys.angSizefloatnullablee_FWHM? The 1{sigma} error in FWHMkm/sstat.error;phys.angSizefloatnullableSH2CO? The H_2_CO flux density at 4829.6594MHzJyphot.flux.density;em.radio.3-6GHzfloatnullablee_SH2CO? The 1{sigma} error in SH2COJystat.errorfloatnullableSint? Integrated flux density at 4829.6594MHzJy.km/sphot.flux.density;em.radio.3-6GHzdoublenullablee_Sint? The 1{sigma} error in SintJy.km/sstat.errorfloatnullableJ/A+A/532/A127/table4Kinematic parametersCodeThe Near/Far code (2)meta.codecharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintf_SourceChanges (1)meta.codecharSourceSource namemeta.id;meta.maincharMC[1/4]? H_2_CO molecular cloud number within the source (G1)meta.code.multipintnullableVLSRLocal Standard of Rest Velocitykm/sphys.veloc;pos.lsrfloatVTP? Tangent point velocitykm/sphys.veloc.transversefloatnullableDTP? Tangent point distancekpcpos.distance;pos.heliocentricfloatnullableDfar? Far source distancekpcpos.distance;pos.heliocentricfloatnullableDnear? Near source distancekpcpos.distance;pos.heliocentricfloatnullableDLSR? Adopted kinematic source distancekpcpos.distance;pos.heliocentricfloatnullableE_DLSR? Upper limit in DLSRkpcstat.error;stat.maxfloatnullablee_DLSR? Lower limit in DLSRkpcstat.errorfloatnullableZ? Galactic plane distancepcpos.distance;pos.galacticfloatnullableRGC? Galactic center distancekpcpos.distance;pos.galacticfloatnullable