J/MNRAS/483/3146ivo://CDS.VizieR/J/MNRAS/483/3146doi:10.26093/cds/vizier.74833146CDSBillington S.J.Urquhart J.S.Figura C.Eden D.J.Moore T.J.T.2024-08-19T20:15:55Z2022-08-11T11:59:07ZCDS support team

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

cds-question@unistra.frinterstellar-mediumradial-velocityWe present the results from NH_3_ mapping observations towards 34 regions identified by the Red MSX Source (RMS) survey. We have used the Australia Telescope Compact Array to map ammonia (1,1) and (2,2) inversion emission spectra at a resolution of 10arcsec with velocity channel resolution of 0.4km/s towards the positions of embedded massive star formation. Complementary data have been used from the ATLASGAL and GLIMPSE Legacy Surveys in order to improve the understanding of the regions and to estimate physical parameters for the environments. The fields have typical masses of ~1000M_{sun}_, radii of ~0.15pc, and distances of ~3.5kpc. Luminosities range between ~10^3^ and ~10^6^L_{sun}_ and kinetic temperatures between 10 and 40K. We classify each field into one of two subsets in order to construct an evolutionary system for massive star formation in these regions based on the morphology and relative positions of the NH_3_ emission, RMS sources, and ATLASGAL thermal dust emission. Differences in morphology between NH_3_ emission and ATLASGAL clumps are shown to correspond to evolutionary stages of ongoing massive star formation in these regions. The study has been further refined by including the positions of known methanol and water masers in the regions to gain insight into possible protostellar regions and triggered star formation.2019MNRAS.483.3146Bhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/483/3146CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/MNRAS/452/4029 : RMS survey (Urquhart+, 2015)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/483/3146https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/483/3146http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/483/3146https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/483/3146https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/483/3146http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/483/3146GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/483/3146/table2 (Observed field parameters)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/483/3146/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/483/3146/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/483/3146/table2?GETtext/xml+votable180.050000true128.0310833-43.23019440.005555555555555556Cone search capability for table J/MNRAS/483/3146/table3 (FellWalker source catalogue for detected clumps)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/483/3146/table3?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/483/3146/table3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/483/3146/table3?GETtext/xml+votable180.050000true128.0375-43.22988060.0055555555555555566/38019 39246 41655 41671 41684 41770 41777 41804 41815 41817 41820 41824 42159 42171-42172 42174 42214 42228-42230 42376 42379 42383 42387 42392-42393 42396 42496 42498https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/483/3146?format=asciidefaultJ/MNRAS/483/3146/table1Extracted field parameters from the ATLASGAL surveyIDField IDobs.fieldintrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameField Name from the ATLASGAL survey (GLLL.llll+BB.bbbb)meta.id;meta.maincharLbol? Bolometric luminosity of the regionlog(solLum)phys.luminosityfloatnullableMfield? Mass of the regionlog(solMass)phys.massfloatnullableNH2? H_2_ column densitylog(cm**-2)phys.columnDensityfloatnullableJ/MNRAS/483/3146/table2Observed field parametersSimbadNameSimbad column added by the CDSmeta.idcharnullableRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIDField IDobs.fieldintNameField Name from the ATLASGAL survey (GLLL.llll+BB.bbbb)meta.id;meta.maincharDEJ2000Declination (J2000)pos.eq.dec;meta.mainNbCNumber of clumpsmeta.numberintvLSRRadial velocity relative to local standard of restkm/sspect.dopplerVeloc;pos.lsrfloatDistDistancekpcpos.distancefloatrmsRoot mean square (rms) noiseJy/beaminstr.det.noise;stat.meanfloatBeammajBeam major axisarcsecphys.angSize;instr.beamfloatBeamminBeam minor axisarcsecphys.angSize;instr.beamfloatJ/MNRAS/483/3146/table3FellWalker source catalogue for detected clumpsSimbadSimbad column added by the CDSmeta.ref.urlcharIDField IDobs.fieldintrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameClump name derived from the galactic coordinates of the peak emission of the source (GLLL.llll+B.bbbb)meta.id;meta.maincharRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.mainsigmajSemimajor axis of the clumparcsecphys.angSize;srcfloatsigminSemiminor axis of the clumparcsecphys.angSize.sminAxisfloatAspectAspect ratio (sigmaj/sigmin)phys.size.axisRatiofloatRad? Radius of the clumppcphys.size.radiusfloatnullableSsumIntegrated fluxK.km/sphot.fluxfloatSpeakPeak emission valueK.km/sphot.fluxfloatSNRSignal to noise ratiostat.snrfloatJ/MNRAS/483/3146/table4Table of RMS associations with corresponding angular offset values for all detected clumpsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIDField IDobs.fieldintNameClump name derived from the galactic coordinates of the peak emission of the source (GLLL.llll+B.bbbb)meta.id;meta.maincharONameRMS name (GLLL.llll+BB.bbbb)meta.idcharf_OName[*] Flag on OName (1)meta.codecharTypeRMS type (HII region or YSO)src.classcharAOffsetAngular offsetarcsecpos;arith.diffintJ/MNRAS/483/3146/table6Detected NH3 clump parametersIDField IDobs.fieldintrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameClump name derived from the galactic coordinates of the peak emission of the source (GLLL.llll+B.bbbb)meta.id;meta.maincharf_Name[*] Flag on Name (1)meta.codecharvLSRRadial velocity relative to local standard of restkm/sspect.dopplerVeloc;pos.lsrfloatDeltavpeakIntrinsic FWHM line width of the peakkm/sspect.line.widthfloatDeltavmeanIntrinsic FWHM line width median valuekm/sspect.line.widthfloatTexpeakExcitation temperature of the peakKphys.atmol.excitation;stat.maxfloatTexmeanExcitation temperature median valueKphys.atmol.excitation;stat.medianfloatTrotpeakRotational temperature of the peak (2)Kphys.temperaturefloatTrotmeanRotational temperature median value (2)Kphys.temperaturefloatTkinpeakKinetic temperature of the peakKphys.temperature;stat.maxfloatTkinmeanKinetic temperature median valueKphys.temperature;stat.medianfloatBffpeakBeam filling factor of the entire sample of the peak (3)arith.factor;stat.filling;instr.beamfloatBffmeanMedian value of the beam filling factor of the entire sample (3)arith.factor;stat.filling;stat.medianfloatNNH3peakNH_3_ column density of the peaklog(cm**-2)phys.columnDensity;stat.maxfloatNNH3meanNH_3_ column density median valuelog(cm**-2)phys.columnDensity;stat.medianfloat