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<ri:Resource created="2007-01-11T12:16:05Z" status="active" updated="2025-05-19T09:50:00Z" 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>Barnes-Evans relations for dwarfs</title><shortName>J/A+A/460/783</shortName><identifier>ivo://CDS.VizieR/J/A+A/460/783</identifier><altIdentifier>doi:10.26093/cds/vizier.34600783</altIdentifier><curation><publisher ivo-id="ivo://CDS">CDS</publisher><creator><name>Beuermann K.</name></creator><date role="Updated">2007-01-11T11:17:28Z</date><date role="Created">2007-01-11T12:16:05Z</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>astronomical-models</subject><subject>dwarf-stars</subject><description>Barnes-Evans type relations provide an empirical relationship between the surface brightness of stars and their color. They are widely used for measuring the distances to stars of known radii, as the Roche-lobe filling secondaries in cataclysmic variables (CVs). The calibration of the surface brightness of field dwarfs of near-solar metalicity with spectral types A0 to L8 covers all secondary spectral types detectable in CVs and related objects and will aid in the measurement of their distances. The calibrations are based on the radii of field dwarfs measured by the Infrared Flux Method and by interferometry. Published photometry is used and homogenized to the Cousins Rc and Ic and the CIT JHK photometric systems. The narrow band surface brightness at 7500{AA} is based on our own and published spectrophotometry. Care is taken to select the dwarfs for near-solar metalicity, appropriate to CVs, and to avoid errors caused by unrecognized binarity.</description><source format="bibcode">2006A&amp;A...460..783B</source><referenceURL>https://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/460/783</referenceURL><type>Catalog</type><contentLevel>Research</contentLevel><relationship><relationshipType>IsServedBy</relationshipType><relatedResource ivo-id="ivo://CDS.VizieR/TAP">TAP VizieR generic service</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/460/783</accessURL><mirrorURL title="VizieR at IUCAA: Pune, India">https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/460/783</mirrorURL><mirrorURL title="VizieR at SAAO: SAAO, South Africa">http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/460/783</mirrorURL></interface></capability><capability><interface xsi:type="vs:ParamHTTP"><accessURL use="base">https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/460/783</accessURL><mirrorURL title="VizieR at IUCAA: Pune, India">https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/460/783</mirrorURL><mirrorURL title="VizieR at SAAO: SAAO, South Africa">http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/460/783</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"/></coverage><tableset><schema><name>default</name><table><name>J/A+A/460/783/table2</name><description>Parameters of polynomial fits of surface brightness vs. V-K or spectral type</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>Line</name><description>Line number</description><ucd>meta.id</ucd><dataType xsi:type="vs:VOTableType">int</dataType></column><column><name>DepV</name><description>Dependant variable (1)</description><ucd>meta.note</ucd><dataType xsi:type="vs:VOTableType" arraysize="6*">char</dataType></column><column><name>X</name><description>[X V-K] Independent variable used in polynomial fit (2)</description><ucd>stat.param</ucd><dataType xsi:type="vs:VOTableType" arraysize="3*">char</dataType></column><column><name>Rangel</name><description>Range of independant variable (lower limit)</description><ucd>stat.param</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>Rangeu</name><description>Range of independant variable (upper limit)</description><ucd>stat.param</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>SpTypel</name><description>Lower spectral type range</description><ucd>instr.bandwidth</ucd><dataType xsi:type="vs:VOTableType" arraysize="4*">char</dataType></column><column><name>SpTypeu</name><description>Upper spectral type range</description><ucd>instr.bandwidth</ucd><dataType xsi:type="vs:VOTableType" arraysize="4*">char</dataType></column><column><name>a0</name><description>a0 coefficient of polynomial fit (2)</description><ucd>stat.fit.param;meta.modelled</ucd><dataType xsi:type="vs:VOTableType">double</dataType></column><column><name>a1</name><description>a1 coefficient of polynomial fit (2)</description><ucd>stat.fit.param;meta.modelled</ucd><dataType xsi:type="vs:VOTableType">double</dataType></column><column><name>a2</name><description>? a2 coefficient of polynomial fit (2)</description><ucd>stat.fit.param;meta.modelled</ucd><dataType xsi:type="vs:VOTableType">double</dataType><flag>nullable</flag></column><column><name>a3</name><description>? a3 coefficient of polynomial fit (2)</description><ucd>stat.fit.param;meta.modelled</ucd><dataType xsi:type="vs:VOTableType">double</dataType><flag>nullable</flag></column><column><name>a4</name><description>? a4 coefficient of polynomial fit (2)</description><ucd>stat.fit.param;meta.modelled</ucd><dataType xsi:type="vs:VOTableType">double</dataType><flag>nullable</flag></column><column><name>a5</name><description>? a5 coefficient of polynomial fit (2)</description><ucd>stat.fit.param;meta.modelled</ucd><dataType xsi:type="vs:VOTableType">double</dataType><flag>nullable</flag></column></table></schema></tableset></ri:Resource>