J/A+A/408/305ivo://CDS.VizieR/J/A+A/408/305doi:10.26093/cds/vizier.34080305CDSMiroshnichenko A.S.Bjorkman K.S.Morrison N.D.Wisniewski J.P.,Manset N.Levato H.Grosso M.Pollmann E.Buil C.Knauth D.C.2017-06-19T07:57:34Z2003-11-11T17:55:05ZCDS support team

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

cds-question@unistra.frspectroscopic-binary-starsline-intensitiesWe present the results of a spectroscopic monitoring program of the binary system Scorpii, whose primary became a Be star after the last periastron encounter in the Summer of 2000. The observations cover a period of 2 years (March 2001-June 2003) and are a continuation of our previous campaign reported in Miroshnichenko et al. (2001A&A...377..485M). We found that the emission-line spectrum was gradually strengthening over the whole monitoring period. Several short-term increases of the line emission, possibly due to outbursts of matter ejected from the stellar surface, were detected. The outbursts seem to be responsible for the brightness fadings, seen afterwards. We attempt to explain the overall observed line and continuum behaviour in terms of a circumstellar disk, growing in density and size. The disk is most likely Keplerian with an outer radius of and a mean expansion speed of ~0.4km/s.2003A&A...408..305Mhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/408/305CatalogResearchIsServedByTAP VizieR generic servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/408/305https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/408/305http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/408/305https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/408/305https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/408/305http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/408/305GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapOpticaldefaultJ/A+A/408/305/table1Summary of the high-resolution H{alpha} observations of {delta} ScorecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintHJDHeliocentric Julian datedtime.epochdoubleSite[RLCM] Site of observation (1)meta.id;instr.obstycharEWLine equivalent width0.1nmspect.line.eqWidthfloatBintIntensity of the blue emission peak (2)phot.flux.density;arith.ratiofloatRintIntensity of the red emission peak (2)phot.flux.density;arith.ratiofloatCDint? Intensity of the central depression (2)phot.flux.density;arith.ratiofloatnullableRV? Radial velocity of the wingskm/sphys.veloc;pos.heliocentricfloatnullableu_RVUncertainty flag on RVmeta.code.errorcharPeakSep? Peak separation (3)km/sphys.veloc;arith.diffintnullableu_PeakSepUncertainty flag on PeakSepmeta.code.errorcharFWHMFull width at half-maximumkm.sspect.line.widthintJ/A+A/408/305/table2Summary of the low-resolution H{alpha} observations of {delta} Sco.recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintMJDModified Julian datetime.epochintSite[GF] Observing site (F: France; G: Germany)meta.id;instr.obstycharEWLine equivalent width0.1nmspect.line.eqWidthfloat