J/A+A/542/A57ivo://CDS.VizieR/J/A+A/542/A57doi:10.26093/cds/vizier.35420057CDSPolster J.Korcakova D.Votruba V.Skoda P.Slechta M.Kucerova B.,Kubat J.2017-06-20T13:17:21Z2012-06-05T11:08:05ZCDS support team

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

cds-question@unistra.frspectroscopic-binary-starsbe-starsspectroscopyWe present results of nearly six years long spectroscopic observations of the B[e] star V2028 Cyg. The presence of the cold type absorption lines combined with the hot type spectrum indicate a binarity of this object. Since the B[e] stars are embedded in an extended envelope, the usage of common stellar atmosphere models for the analysis is not very appropriate. Therefore we focus on the analysis of the long term spectral line variations in order to determine the nature of this object. We present time dependencies of the equivalent width and radial velocities of the H{alpha} line, [OI] 6300{AA}, FeII 6427, 6433, and 6456{AA} lines. The bisector variations and line intensities are shown for the H{alpha} line. The radial velocities are also measured for the absorption lines of the K component. No periodic variation was found. The observed data show correlations between the measured quantities, which can be used for the future modelling.2012A&A...542A..57Phttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/542/A57CatalogResearchIsServedByTAP VizieR generic servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/542/A57https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/542/A57http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/542/A57https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/542/A57https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/542/A57http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/542/A57GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapOpticaldefaultJ/A+A/542/A57/table1List of the spectrarecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintFileNameName of the spectrum filemeta.id;meta.filecharJDJulian datedtime.epochdoubleIntervalWavelength intervalnminstr.bandwidthcharspspectrummeta.ref.urlchar