J/MNRAS/470/1462ivo://CDS.VizieR/J/MNRAS/470/1462doi:10.26093/cds/vizier.74701462CDSLongmore S.N.Walsh A.J.Purcell C.R.Burke D.J.Henshaw J.Walker D.,Urquhart J.Barnes A.T.Whiting M.Burton M.G.Breen S.L.Britton T.,Brooks K.J.Cunningham M.R.Green J.A.Harvey-smith L.Hindson L.,Hoare M.G.Indermuehle B.Jones P.A.Lo N.Lowe V.Moore T.J.T.,Thompson M.A.Voronkov M.A.2024-08-17T20:19:46Z2020-06-13T10:18:39ZCDS support team

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

cds-question@unistra.frgalaxy-planesmilky-way-galaxyastrophysical-masersradio-astronomyspectroscopyThe H_2_O Southern Galactic Plane Survey (HOPS) has mapped 100deg^2^ of the Galactic plane for water masers and thermal molecular line emission using the 22m Mopra telescope. We describe the automated spectral-line fitting pipelines used to determine the properties of emission detected in HOPS data cubes, and use these to derive the physical and kinematic properties of gas in the survey. A combination of the angular resolution, sensitivity, velocity resolution and high critical density of lines targeted make the HOPS data cubes ideally suited to finding precursor clouds to the most massive and dense stellar clusters in the Galaxy. We compile a list of the most massive HOPS ammonia regions and investigate whether any may be young massive cluster progenitor gas clouds. HOPS is also ideally suited to trace the flows of dense gas in the Galactic Centre. We find the kinematic structure of gas within the inner 500pc of the Galaxy is consistent with recent predictions for the dynamical evolution of gas flows in the centre of the Milky Way. We confirm a recent finding that the dense gas in the inner 100pc has an oscillatory kinematic structure with characteristic length-scale of 20pc, and also identify similar oscillatory kinematic structure in the gas at radii larger than 100pc. Finally, we make all of the above fits and the remaining HOPS data cubes across the 100deg^2^ of the survey available to the community.2017MNRAS.470.1462Lhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/470/1462CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/MNRAS/416/1764 : H_2_O Southern Galactic Plane Survey (HOPS) (Walsh+, 2011)J/MNRAS/426/1972 : H_2_O Southern Galactic Plane Survey. II (Purcell+, 2012)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/470/1462https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/470/1462http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/470/1462https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/470/1462https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/470/1462http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/470/1462GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/470/1462/tableb1 (Output from the automated spectral line fitting procedure)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/470/1462/tableb1?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/470/1462/tableb1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/470/1462/tableb1?GETtext/xml+votable180.050000true266.99939-28.990980.005555555555555556Cone search capability for table J/MNRAS/470/1462/tableb2 (Derived gas properties for sources with robust NH_3_ (1,1) and NH_3_ (2,2) detections)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/470/1462/tableb2?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/470/1462/tableb2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/470/1462/tableb2?GETtext/xml+votable180.050000true281.5211595-2.67789290.0055555555555555565/7206 7278 7376 7383 7564 10451 10453 10542 10556 6/28802-28803 28808-28809 28812-28813 28815 28828 28830-28831 28853 28874-28875 28896-28897 28900-28901 28912-28913 28915-28916 28918-28919 29090-29091 29094 29096-29097 29100-29101 29103 29118-29119 29162 29460-29461 29508 29510-29511 29522 29528-29529 30218-30219 30222 30241 30244-30245 30262 41599 41653-41655 41660 41662 41673 41676-41678 41681-41683 41688 41696-41698 41758-41759 41766-41767 41769-41770 41772 41776-41778 41780 41802 41811 41816-41817 41820 42155 42159 42172-42173 42175 42206-42207 42210-42211 42213-42217 42228-42229 42378-42379 42381-42383 42387 42390-42393 42396-42397 42434-42435 42438-42441 42444-42445 42450-42451 42454-42457 42460-42461 42496-42497 42500-42501 43013 43020 43024https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/470/1462?format=asciiRadiodefaultJ/MNRAS/470/1462/tableb1Output from the automated spectral line fitting procedureSimbadNameSimbad column added by the CDSmeta.idcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintGLONGalactic longitude (1)degpos.galactic.lonGLATGalactic latitude (1)degpos.galactic.latT11Bm? Best fit NH_3_(1,1) peak brightness temperature of the main componentKphys.temperature;meta.main;meta.modelledfloatnullablee_T11Bm? rms uncertainty on T11BmKstat.errorfloatnullableV11lsr? Best fit NH_3_(1,1) line-centre velocitykm/sphys.veloc;pos.lsrfloatnullablee_V11lsr? rms uncertainty on V11lsrkm/sstat.errorfloatnullableDV11? Best fit NH_3_(1,1) line widthkm/sspect.line.widthfloatnullablee_DV11? rms uncertainty on DV11km/sstat.errorfloatnullabletaum11? Opacity of the NH_3_(1,1) transitionphys.absorption.coefffloatnullablee_taum11? rms uncertainty on taum11stat.errorfloatnullableT11ex? Excitation temperature of the NH_3_(1,1) transitionKphys.atmol.excitation;phys.atmol.transitionfloatnullableIntT22BdV? NH_3_(2,2) integrated intensityK.km/sphot.flux.density;em.radiofloatnullablee_IntT22BdV? rms uncertainty on IntT22BdVK.km/sstat.errorfloatnullableV22lsr? Best fit NH_3_(2,2) line-centre velocitykm/sphys.veloc;pos.lsrfloatnullablee_V22lsr? rms uncertainty on V22lsrkm/sstat.errorfloatnullableDV22? Best fit NH_3_(2,2) line widthkm/sspect.line.widthfloatnullablee_DV22? rms uncertainty on DV22km/sstat.errorfloatnullableT22B? Best fit NH_3_(2,2) peak brightness temperatureKphys.temperature;meta.modelled;stat.maxfloatnullableProp[*] * indicates derived gas properties in tableb2.datmeta.codechar_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.decnullableindexedJ/MNRAS/470/1462/tableb2Derived gas properties for sources with robust NH_3_ (1,1) and NH_3_ (2,2) detectionsSimbadNameSimbad column added by the CDSmeta.idcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintGLONGalactic longitudedegpos.galactic.lonGLATGalactic latitudedegpos.galactic.latTrotRotational temperature, for the peak NH3 (1,1) pixelKphys.temperatureintNH3Total NH_3_ column density, for the peak NH3 (1,1) pixel1e+14cm**-3phys.columnDensityfloatTkinKinetic temperature, for the peak NH3 (1,1) pixelKphys.temperatureintDVntNon-thermal contributions to the line width, for the peak NH3 (1,1) pixelkm/sspect.line.widthfloatDVthThermal contributions to the line width, for the peak NH3 (1,1) pixelkm/sspect.line.widthfloat_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