J/AZh/73/906ivo://CDS.VizieR/J/AZh/73/906CDSKnyazeva L.N.Kharitonov A.V.2017-06-20T13:17:19Z2005-08-17T17:52:37ZCDS support team

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

cds-question@unistra.frob-starsspectral-energy-distributionThe normal spectral energy distribution in the spectra of main-sequence B stars of five subclasses is presented. Spectral classification and UBV photometry from the fourth edition of the BSC and spectrophotometry from three extensive spectrophotometric catalogs are used. The method of selecting unreddened stars is outlined. The good agreement between the mean color indices in the UBV system calculated for a sample of stars with spectrophotometry and for considerably larger samples of unreddened stars of the corresponding subclasses from the BSC confirms the reliability of the results obtained.1996AZh....73..906Khttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AZh/73/906CatalogResearchIsServedByTAP VizieR generic servicerelated-toIII/186 : Energy distribution in stars at 320-760 nm (Knyazeva+, 1996)V/50 : Bright Star Catalogue, 5th Revised Ed. (Hoffleit+, 1991)J/AZh/73/67 : Energy distribution of G,K and M stars (Knyazeva+, 1996)J/AZh/75/70 : Energy distribution of O9-B5 stars (Knyazeva+, 1998)J/AZh/75/197 : Energy distribution of O5-O8 stars (Knyazeva+, 1998)Table 1: Normal color indices for MS B5-B9.5 stars as described byReferences:(Multicolor stellar photometry), Vilnius: Mokslas Publishers.Table 2: Properties of the sample of starsTable 3: List of stars (BS number) used to derive thehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AZh/73/906https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AZh/73/906http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AZh/73/906https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AZh/73/906https://vizier.iucaa.in/viz-bin/votable?-source=J/AZh/73/906http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AZh/73/906GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapOpticaldefaultJ/AZh/73/906/table4Normal energy distributionsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintLambdaWavelengthnmfloatB5VSpectral energy for B5V stars normalized to 1.0 at 5475{AA}floatB7VSpectral energy for B7V stars normalized to 1.0 at 5475{AA}floatB8VSpectral energy for B8V stars normalized to 1.0 at 5475{AA}floatB9VSpectral energy for B9V stars normalized to 1.0 at 5475{AA}floatB9.5VSpectral energy for B9.5V stars normalized to 1.0 at 5475{AA}float