J/A+A/592/A76ivo://CDS.VizieR/J/A+A/592/A76doi:10.26093/cds/vizier.35920076CDSDecin L.Richards A.M.S.Millar T.J.Baudry A.De Beck E.Homan W.,Smith N.Van de Sande M.Walsh C.2016-07-29T07:24:08Z2016-07-29T08:22:54ZCDS support team

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

cds-question@unistra.frsupergiant-starsinterferometryAt the end of their lives, most stars lose a significant amount of mass through a stellar wind. The specific physical and chemical circumstances that lead to the onset of the stellar wind for cool luminous stars are not yet understood. Complex geometrical morphologies in the circumstellar envelopes prove that various dynamical and chemical processes are interlocked and that their relative contributions are not easy to disentangle. We aim to study the inner-wind structure (R<250R*) of the well-known red supergiant VY CMa, the archetype for the class of luminous red supergiant stars experiencing high mass loss. Specifically, the objective is to unravel the density structure in the inner envelope and to examine the chemical interaction between gas and dust species. We analyse high spatial resolution (~0.24"x0.13") ALMA Science Verification (SV) data in band 7, in which four thermal emission lines of gaseous sodium chloride (NaCl) are present at high signal-to-noise ratio.2016A&A...592A..76Dhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/592/A76CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/ApJS/190/348 : 1mm spectral survey of IRC+10216 + VY CMa (Tenenbaum+, 2010)J/A+A/551/A113 : VY CMa spectrum in 220.65-224.25GHz range (Kaminski+, 2013)J/MNRAS/437/532 : VY CMa molecular line spectra (Matsuura+, 2014)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/592/A76https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/592/A76http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/592/A76https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/592/A76https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/592/A76http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/592/A76GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/592/A76/list (List of fits files)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/592/A76/list?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/592/A76/list?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/592/A76/list?GETtext/xml+votable180.050000true110.74306-25.767590.0055555555555555566/39905https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/592/A76?format=asciidefaultJ/A+A/592/A76/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.mainNxNumber of pixels along X-axismeta.numberintNyNumber of pixels along Y-axismeta.numberintNzNumber of pixels along Z-axismeta.numberintObs.dateObservation date (YYYY-MM-DDThh:mm:ss.ssssss)time.epoch;obscharbFreqLower value of frequency intervalGHzem.freq;stat.minfloatBFreqUpper value of frequency intervalGHzem.freq;stat.maxfloatdFreqFrequency resolutionMHzem.freqdoublesizeSize of FITS fileKibytephys.size;meta.fitsintFileNameName of FITS file, in subdirectory fitsmeta.id;meta.fitscharTitleTitle of the FITS filemeta.title;meta.fitscharAllDisplay all datameta.ref.urlcharJ/A+A/592/A76/table1NaCl lines in the spectral windows covered by the ALMA observationsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintAllDisplay all datameta.ref.urlcharTransTransitionmeta.id;phys.atmol.transitioncharFreqlabRest frequencyGHzem.freqfloatElowLower state energycm**-1phys.energyfloatAEisntein A-values from CDMSs**-1phys.atmol.transProbfloatrmsrms noisestat.stdev;instr.det.noiseintmajSynthesized beam major axisarcsecphys.angSizefloatminSynthesized beam minor axisarcsecphys.angSize;srcfloatPASynthesized beam position angledegpos.posAng;instr.beamfloatComComment concerning line blendingmeta.note;spect.linechar