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<ri:Resource created="1999-10-13T16:00:10Z" status="active" updated="2025-06-13T15:25:00Z" version="1.2" xmlns:ri="http://www.ivoa.net/xml/RegistryInterface/v1.0" xmlns:vr="http://www.ivoa.net/xml/VOResource/v1.0" xmlns:vs="http://www.ivoa.net/xml/VODataService/v1.1" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.ivoa.net/xml/VOResource/v1.0 http://vo.ari.uni-heidelberg.de/docs/schemata/VOResource.xsd http://www.ivoa.net/xml/VODataService/v1.1 http://vo.ari.uni-heidelberg.de/docs/schemata/VODataService.xsd" xsi:type="vs:CatalogService"><title>Bp-Ap stars HR-diagram from Hipparcos data</title><shortName>J/A+A/336/953</shortName><identifier>ivo://CDS.VizieR/J/A+A/336/953</identifier><altIdentifier>doi:10.26093/cds/vizier.33360953</altIdentifier><curation><publisher ivo-id="ivo://CDS">CDS</publisher><creator><name>Gomez A.E.</name></creator><creator><name>Luri X.</name></creator><creator><name>Grenier S.</name></creator><creator><name>Figueras F.</name></creator><creator><name>North P.</name></creator><creator><name>Royer F.,Torra J.</name></creator><creator><name>Mennessier M.O.</name></creator><date role="Updated">1999-10-13T16:01:12Z</date><date role="Created">1999-10-13T16:00:10Z</date><contact><name>CDS support team</name><address>CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France</address><email>cds-question@unistra.fr</email></contact></curation><content><subject>ap-stars</subject><subject>stellar-distance</subject><subject>absolute-magnitude</subject><description>Using Hipparcos (Cat. &lt;I/239&gt;) parallaxes and proper motions together with radial velocity data, the luminosity calibration and kinematics of Bp-Ap stars have been obtained. The used statistical method allows to treat inhomogeneous samples and to identify the different groups. Six types of Bp-Ap stars (He-rich, He-weak, Hg-Mn, Si, Si+ and SrCrEu) have been considered. In most of the samples, with the exception of the He-rich and He-weak stars, two groups have been separated. Individual distances and luminosities are given for the stars belonging to the main groups which contain the largest number of stars. The list of stars in the secondary groups is given</description><source format="bibcode">1998A&amp;A...336..953G</source><referenceURL>https://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/336/953</referenceURL><type>Catalog</type><contentLevel>Research</contentLevel><relationship><relationshipType>IsServedBy</relationshipType><relatedResource ivo-id="ivo://CDS.VizieR/TAP">TAP VizieR generic service</relatedResource></relationship><relationship><relationshipType>related-to</relationshipType><relatedResource ivo-id="ivo://CDS.VizieR/I/239">I/239 : The Hipparcos and Tycho Catalogues (ESA 1997)</relatedResource></relationship></content><rights>https://cds.unistra.fr/vizier-org/licences_vizier.html</rights><capability><interface xsi:type="vr:WebBrowser"><accessURL use="full">https://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/336/953</accessURL><mirrorURL title="VizieR at IUCAA: Pune, India">https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/336/953</mirrorURL><mirrorURL title="VizieR at SAAO: SAAO, South Africa">http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/336/953</mirrorURL></interface></capability><capability><interface xsi:type="vs:ParamHTTP"><accessURL use="base">https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/336/953</accessURL><mirrorURL title="VizieR at IUCAA: Pune, India">https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/336/953</mirrorURL><mirrorURL title="VizieR at SAAO: SAAO, South Africa">http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/336/953</mirrorURL><queryType>GET</queryType><resultType>text/xml+votable</resultType></interface></capability><capability standardID="ivo://ivoa.net/std/TAP#aux"><interface xsi:type="vs:ParamHTTP" role="std"><accessURL use="base">https://tapvizier.cds.unistra.fr/TAPVizieR/tap</accessURL></interface></capability><coverage><footprint ivo-id="ivo://ivoa.net/std/moc"/><waveband>Optical</waveband></coverage><tableset><schema><name>default</name><table><name>J/A+A/336/953/table3</name><description>Individual estimations for main group stars</description><column><name>Dist</name><description>Distance</description><unit>pc</unit><ucd>pos.distance</ucd><dataType xsi:type="vs:VOTableType">int</dataType></column><column><name>recno</name><description>Record number assigned by the VizieR team. Should Not be used for identification.</description><ucd>meta.record</ucd><dataType xsi:type="vs:VOTableType">int</dataType></column><column><name>HIP</name><description>HIPPARCOS (Cat. &lt;I/239&gt;) number</description><ucd>meta.id;meta.main</ucd><dataType xsi:type="vs:VOTableType">int</dataType></column><column><name>HD</name><description>? HD (Cat. &lt;III/135&gt;) number</description><ucd>meta.id</ucd><dataType xsi:type="vs:VOTableType">int</dataType><flag>nullable</flag></column><column><name>Prob</name><description>Probability of belonging to the group</description><unit>%</unit><ucd>stat.fit.goodness</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>e_Dist</name><description>Distance error</description><unit>pc</unit><ucd>stat.error</ucd><dataType xsi:type="vs:VOTableType">int</dataType></column><column><name>Vmag</name><description>Apparent V-magnitude</description><unit>mag</unit><ucd>phot.mag;em.opt.V</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>MVmag</name><description>Absolute visual magnitude</description><unit>mag</unit><ucd>phys.magAbs;em.opt</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>Class</name><description>Spectral Classification</description><ucd>src.spType</ucd><dataType xsi:type="vs:VOTableType" arraysize="9*">char</dataType></column></table><table><name>J/A+A/336/953/table4</name><description>List of stars in the secondary groups</description><column><name>recno</name><description>Record number assigned by the VizieR team. Should Not be used for identification.</description><ucd>meta.record</ucd><dataType xsi:type="vs:VOTableType">int</dataType></column><column><name>HIP</name><description>HIPPARCOS (Cat. &lt;I/239&gt;) number</description><ucd>meta.id;meta.main</ucd><dataType xsi:type="vs:VOTableType">int</dataType></column><column><name>HD</name><description>? HD (Cat. &lt;III/135&gt;) number</description><ucd>meta.id</ucd><dataType xsi:type="vs:VOTableType">int</dataType><flag>nullable</flag></column><column><name>Prob</name><description>Probability of belonging to the group</description><unit>%</unit><ucd>stat.fit.goodness</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>Class</name><description>Spectral Classification</description><ucd>src.spType</ucd><dataType xsi:type="vs:VOTableType" arraysize="6*">char</dataType></column></table></schema></tableset></ri:Resource>