J/MNRAS/396/2061ivo://CDS.VizieR/J/MNRAS/396/2061doi:10.26093/cds/vizier.73962061CDSSriraghavan S.M.Babu G.S.D.2024-07-08T20:16:02Z2009-12-22T19:29:25ZCDS support team

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

cds-question@unistra.frpeculiar-variable-starsline-intensitiesThe chemically peculiar star HR 4330 (=HD 96707, EP UMa) was observed using the 2-m Himalayan Chandra Telescope at the Indian Astronomical Observatory, Hanle, India, for studying the variations in its spectral features. It was found that the spectral features of CaII 3933{AA} and SrII 4077{AA} were showing rapid variations in their equivalent widths with a periodicity of 0.28+/-0.02d. Such short-term variations suggest that there could be a dynamically active surface with rapid variation in the conditions of the stellar atmosphere.2009MNRAS.396.2061Shttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/396/2061CatalogResearchIsServedByTAP VizieR generic servicerelated-toJ/A+AS/136/379 : uvby photometry of 4 CP stars (Adelman+ 1999)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/396/2061https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/396/2061http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/396/2061https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/396/2061https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/396/2061http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/396/2061GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapOpticaldefaultJ/MNRAS/396/2061/table3Equivalent widths of CaII 3933 and SrII 4077SNRSignal-to-noise ratiostat.snrfloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintJDJulian date of observations (1)dtime.epochdoubleEW3933Equivalent width at CaII 3933{AA}0.1nmspect.line.eqWidthfloatEW4077Equivalent width at SrII 4077{AA}0.1nmspect.line.eqWidthfloat