J/A+A/570/A49ivo://CDS.VizieR/J/A+A/570/A49doi:10.26093/cds/vizier.35700049CDSLeurini S.Codella C.Lopez-Sepulcre A.Gusdorf A.Csengeri T.,Anderl S.2018-05-01T14:21:49Z2014-10-15T08:47:19ZCDS support team

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

cds-question@unistra.fryoung-stellar-objectsspectroscopyMolecular outflows are a direct consequence of accretion, and therefore they represent one of the best tracers of accretion processes in the still poorly understood early phases of high-mass star formation. Previous studies suggested that the SiO abundance decreases with the evolution of a massive young stellar object probably because of a decay of jet activity, as witnessed in low-mass star-forming regions. We investigate the SiO excitation conditions and its abundance in outflows from a sample of massive young stellar objects through observations of the SiO(8-7) and CO(4-3) lines with the APEX telescope.2014A&A...570A..49Lhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/570/A49CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/570/A49https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/570/A49http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/570/A49https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/570/A49https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/570/A49http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/570/A49GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/570/A49/list (List of FITS files)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/570/A49/list?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/570/A49/list?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/570/A49/list?GETtext/xml+votable180.050000true274.46039-12.131890.005555555555555556Associated datahttps://cdsarc.cds.unistra.fr/assocdata/?obs_collection=J/A+A/570/A496/29509-29511 29513 29533 29535 30218 30241 30318 30618https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/570/A49?format=asciidefaultJ/A+A/570/A49/listList of FITS filesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ2000Right ascension of center (J2000)degpos.eq.ra;meta.mainDEJ2000Declination of center (J2000)degpos.eq.dec;meta.mainObsDateObservation datetime.epoch;obsnullableNx[150] Number of measurementsmeta.numberintVlsr[26/114] LSR velocity of central pointkm/sphys.veloc;pos.lsrfloatdFreq[2] Frequency resolutionMHzspect.resolutionintbFreq[-173.8] Lower frequencyMHzphys.velocfloatBFreq[171.5] Upper frequencyMHzphys.velocfloatsize[8] Size of the FITS fileKibytephys.size;meta.fitsintspPlot the spectrummeta.ref.urlcharfitsDownload the FITS file (8Kibyte)meta.ref.urlcharFileNameName of the FITS file in subdirectory fitsmeta.id;meta.fitscharTitleTitle of the filemeta.title;meta.filecharSNameSimbad name of the sourcemeta.id;meta.maincharAssocDataAssociated Data web pagemeta.bib.pagechar