J/ApJ/689/461ivo://CDS.VizieR/J/ApJ/689/461doi:10.26093/cds/vizier.16890461CDSTycner C.Jones C.E.Sigut T.A.A.Schmitt H.R.Benson J.A.,Hutter D.J.Zavala R.T.2011-02-19T19:36:36Z2011-02-01T15:13:52ZCDS support team

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

cds-question@unistra.frbe-starsastronomical-modelsinterferometryWe present a numerical model describing a circularly symmetric gaseous disk around the Be star {chi} Ophiuchi. The model is constrained by long-baseline interferometric observations that are sensitive to the H{alpha} Balmer line emission from the disk. For the first time, our interferometric observations spatially resolve the inner region of the circumstellar disk around {chi} Oph, and we use these results to place a constraint on the physical extent of the H{alpha}-emitting region. We demonstrate how this in turn results in very specific constraints on the parameters that describe the variation of the gas density as a function of radial distance from the central star.2008ApJ...689..461Thttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/689/461CatalogResearchIsServedByTAP VizieR generic servicerelated-toJ/ApJ/654/527 : Interferometric observations of northern Be stars (Gies+, 2007)J/ApJ/652/458 : BVRH{alpha} photometry of candidates Be stars (Wisniewski+,J/AZh/73/194 : Circumstellar Disks of Ae/Be Herbig Stars (Grinin+ 1996)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/689/461https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/689/461http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/689/461https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/689/461https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/689/461http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/689/461GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapdefaultJ/ApJ/689/461/table2Calibrated H{alpha} squared visibilities of {chi} OphrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintJDJulian Date (JD-2450000.0)dtime.epochdoubleuSpatial frequency u in 10^6^cycles/radian units1e+06rad**-1obs.paramfloatvSpatial frequency v in 10^6^cycles/radian units1e+06rad**-1obs.paramfloatV2HaSquared visibility in H{alpha} channelinstr.calibfloate_V2HaUncertainty in V2Hastat.errorfloatBaseBaseline (1)instr.baselinechar