J/A+A/504/853ivo://CDS.VizieR/J/A+A/504/853doi:10.26093/cds/vizier.35040853CDSHerpin F.Marseille M.Wakelam V.Bontemps S.Lis D.C.2020-09-23T05:59:50Z2009-12-09T13:41:34ZCDS support team

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

cds-question@unistra.frinterstellar-mediuminfrared-sourcesspectroscopyTwo mid-infrared quiet and two brighter massive cores were observed in various transitions (E_up_ up to 289K) of CS, OCS, H_2_S, SO, and SO_2_ and of their ^34^S isotopologues at mm wavelengths with the IRAM 30m and CSO telescopes. The 1D modeling of the dust continuum is used to derive the density and temperature laws, which were then applied in the RATRAN code to modeling the observed line emission and to deriving the relative abundances of the molecules. All lines are detected, except the highest energy SO_2_ transition. Infall (up to 2.9km/s) may be detected towards the core W43MM1. We propose an evolutionary sequence of our sources (W43MM1 - IRAS18264-1152 - IRAS05358+3543 - IRAS18162-2048), based on the SED analysis. The analysis of the variations in abundance ratios from source to source reveals that the SO and SO_2_ relative abundances increase with time, while CS and OCS decrease. Molecular ratios, such as [OCS/H_2_S], [CS/H_2_S], [SO/OCS], [SO_2_/OCS], [CS/SO], and [SO_2_/SO] may be good indicators of evolution, depending on layers probed by the observed molecular transitions. Observations of molecular emission from warmer layers, so that involving higher upper energy levels must be included.2009A&A...504..853Hhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/504/853CatalogResearchIsServedByTAP VizieR generic servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/504/853https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/504/853http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/504/853https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/504/853https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/504/853http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/504/853GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapAssociated datahttps://cdsarc.cds.unistra.fr/assocdata/?obs_collection=J/A+A/504/853InfrareddefaultJ/A+A/504/853/table6Observed line emissions parameters for W43MM1recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSpeciesSpeciesmeta.noteTransObserved line transitionmeta.id;phys.atmol.transitiondV? Linewidthkm/sspect.line.widthfloatnullablee_dV? rms uncertainty on dVkm/sstat.errorfloatnullableu_dV[?] Uncertainty flag on dVmeta.code.errorcharTmb? Main beam temperatureKphot.antennaTempfloatnullableu_Tmb[?] Uncertainty flag on Tmbmeta.code.errorchare_Tmb? rms uncertainty on TmbmKstat.errorintnullablel_FluxLimit flag on Fluxmeta.code.error;phot.fluxcharFlux? Integrated fluxK.km/sphot.fluxfloatnullablee_Flux? rms uncertainty on FluxK.km/sstat.error;phot.fluxfloatnullableu_e_Flux[?] Uncertainty flag on Fluxmeta.code.errorchardV3s? linewidth at 3 sigmakm/sstat.stdev;spect.line.widthfloatnullableu_dV3s[?] Uncertainty flag on dV3smeta.code.errorchardV1/2? half-power linewidthkm/sspect.line.widthfloatnullableu_dV1/2[?] Uncertainty flag on dV1/2meta.code.errorcharFlag[abcdfg] Flag on profile (1)meta.code.errorcharFileNameName of the fits file in subdirectory fitsmeta.id;meta.fitscharComCommentsmeta.notecharAssocDataAssociated Data web pagemeta.ref.urlcharJ/A+A/504/853/table7Observed line emissions parameters for IRAS18264-1152ComCommentsmeta.notecharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSpeciesSpeciesmeta.noteTransObserved line transitionmeta.id;phys.atmol.transitiondV? Linewidthkm/sspect.line.widthfloatnullablee_dV? rms uncertainty on dVkm/sstat.errorfloatnullableu_dV[?] Uncertainty flag on dVmeta.code.errorcharTmb? Main beam temperatureKphot.antennaTempfloatnullableu_Tmb[?] Uncertainty flag on Tmbmeta.code.errorchare_Tmb? rms uncertainty on TmbmKstat.errorintnullablel_FluxLimit flag on Fluxmeta.code.error;phot.fluxcharFlux? Integrated fluxK.km/sphot.fluxfloatnullablee_Flux? rms uncertainty on FluxK.km/sstat.error;phot.fluxfloatnullableu_e_Flux[?] Uncertainty flag on Fluxmeta.code.errorchardV3s? linewidth at 3 sigmakm/sstat.stdev;spect.line.widthfloatnullableu_dV3s[?] Uncertainty flag on dV3smeta.code.errorchardV1/2? half-power linewidthkm/sspect.line.widthfloatnullableu_dV1/2[?] Uncertainty flag on dV1/2meta.code.errorcharFlag[abcdfg] Flag on profile (1)meta.code.errorcharFileNameName of the fits file in subdirectory fitsmeta.id;meta.fitscharAssocDataAssociated Data web pagemeta.ref.urlcharJ/A+A/504/853/table8Observed line emissions parameters for IRAS05358+3543ComCommentsmeta.notecharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSpeciesSpeciesmeta.noteTransObserved line transitionmeta.id;phys.atmol.transitiondV? Linewidthkm/sspect.line.widthfloatnullablee_dV? rms uncertainty on dVkm/sstat.errorfloatnullableu_dV[?] Uncertainty flag on dVmeta.code.errorcharTmb? Main beam temperatureKphot.antennaTempfloatnullableu_Tmb[?] Uncertainty flag on Tmbmeta.code.errorchare_Tmb? rms uncertainty on TmbmKstat.errorintnullablel_FluxLimit flag on Fluxmeta.code.error;phot.fluxcharFlux? Integrated fluxK.km/sphot.fluxfloatnullablee_Flux? rms uncertainty on FluxK.km/sstat.error;phot.fluxfloatnullableu_e_Flux[?] Uncertainty flag on Fluxmeta.code.errorchardV3s? linewidth at 3 sigmakm/sstat.stdev;spect.line.widthfloatnullableu_dV3s[?] Uncertainty flag on dV3smeta.code.errorchardV1/2? half-power linewidthkm/sspect.line.widthfloatnullableu_dV1/2[?] Uncertainty flag on dV1/2meta.code.errorcharFlag[abcdfg] Flag on profile (1)meta.code.errorcharFileNameName of the fits file in subdirectory fitsmeta.id;meta.fitscharAssocDataAssociated Data web pagemeta.ref.urlcharJ/A+A/504/853/table10Opacities derived from modeling the molecular emission of the sourcesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSpeciesSpeciesTransObserved line transitionOpac1? Line opacity for source W43MM1floatnullableOpac2Line opacity for source IRAS18264-1152floatOpac3? Line opacity for source IRAS05358+3543floatnullableOpac4? Line opacity for source IRAS18162-2048floatnullableJ/A+A/504/853/table9Observed line emissions parameters for IRAS18162-2048recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSpeciesSpeciesmeta.noteTransObserved line transitionmeta.id;phys.atmol.transitiondV? Linewidthkm/sspect.line.widthfloatnullablee_dV? rms uncertainty on dVkm/sstat.errorfloatnullableu_dV[?] Uncertainty flag on dVmeta.code.errorcharTmb? Main beam temperatureKphot.antennaTempfloatnullableu_Tmb[?] Uncertainty flag on Tmbmeta.code.errorchare_Tmb? rms uncertainty on TmbmKstat.errorintnullablel_FluxLimit flag on Fluxmeta.code.error;phot.fluxcharFlux? Integrated fluxK.km/sphot.fluxfloatnullablee_Flux? rms uncertainty on FluxK.km/sstat.error;phot.fluxfloatnullableu_e_Flux[?] Uncertainty flag on Fluxmeta.code.errorchardV3s? linewidth at 3 sigmakm/sstat.stdev;spect.line.widthfloatnullableu_dV3s[?] Uncertainty flag on dV3smeta.code.errorchardV1/2? half-power linewidthkm/sspect.line.widthfloatnullableu_dV1/2[?] Uncertainty flag on dV1/2meta.code.errorcharFlag[abcdfg] Flag on profile (1)meta.code.errorcharFileNameName of the fits file in subdirectory fitsmeta.id;meta.fitscharComCommentsmeta.notecharAssocDataAssociated Data web pagemeta.ref.urlchar