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<ri:Resource created="2012-06-02T15:50:07Z" status="active" updated="2025-09-25T20:15:46Z" version="1.2" xmlns:cs="http://www.ivoa.net/xml/ConeSearch/v1.0" 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/ConeSearch/v1.0 http://vo.ari.uni-heidelberg.de/docs/schemata/ConeSearch.xsd 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>OGLE II detached red giant eclipsing binary twins</title><shortName>J/AcA/62/33</shortName><identifier>ivo://CDS.VizieR/J/AcA/62/33</identifier><altIdentifier>doi:10.26093/cds/vizier.120620033</altIdentifier><curation><publisher ivo-id="ivo://CDS">CDS</publisher><creator><name>Nataf D.M.</name></creator><creator><name>Gould A.</name></creator><creator><name>Pinsonneault M.H.</name></creator><date role="Updated">2025-09-25T20:15:46Z</date><date role="Created">2012-06-02T15:50:07Z</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>eclipsing-binary-stars</subject><subject>giant-stars</subject><description>We identify 34 highly-probable detached, red giant eclipsing binary pairs among 315 candidates in Devor's catalog of ~10000 OGLE-II eclipsing binaries. We estimate that there should be at least 200 such systems in OGLE-III. We show that spectroscopic measurements of the metallicities and radial-velocity-derived masses of these systems would independently constrain both the age-metallicity and helium-metallicity relations of the Galactic bulge, potentially breaking the age-helium degeneracy that currently limits our ability to characterize the bulge stellar population.</description><source format="bibcode">2012AcA....62...33N</source><referenceURL>https://cdsarc.cds.unistra.fr/viz-bin/cat/J/AcA/62/33</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>IsServedBy</relationshipType><relatedResource>Conesearch service</relatedResource></relationship><relationship><relationshipType>related-to</relationshipType><relatedResource ivo-id="ivo://CDS.VizieR/J/ApJ/628/411">J/ApJ/628/411 : Identification &amp; analysis of eclipsing binaries (Devor+, 2005)</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/AcA/62/33</accessURL><mirrorURL title="VizieR at IUCAA: Pune, India">https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AcA/62/33</mirrorURL><mirrorURL title="VizieR at SAAO: SAAO, South Africa">http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AcA/62/33</mirrorURL></interface></capability><capability><interface xsi:type="vs:ParamHTTP"><accessURL use="base">https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AcA/62/33</accessURL><mirrorURL title="VizieR at IUCAA: Pune, India">https://vizier.iucaa.in/viz-bin/votable?-source=J/AcA/62/33</mirrorURL><mirrorURL title="VizieR at SAAO: SAAO, South Africa">http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AcA/62/33</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><capability xsi:type="cs:ConeSearch" standardID="ivo://ivoa.net/std/ConeSearch"><description>Cone search capability for table J/AcA/62/33/table12 (OGLE-II identification, coordinates, apparent magnitudes, relative radii and periods for the gold and silver sample RG eclipsing binary pairs identified (tables 1 &amp; 2 of the paper))</description><interface xsi:type="vs:ParamHTTP" role="std"><accessURL use="base">https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AcA/62/33/table12?</accessURL><mirrorURL title="VizieR at IUCAA: Pune, India">https://vizier.iucaa.in/viz-bin/conesearch/J/AcA/62/33/table12?</mirrorURL><mirrorURL title="VizieR at SAAO: SAAO, South Africa">http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AcA/62/33/table12?</mirrorURL><queryType>GET</queryType><resultType>text/xml+votable</resultType></interface><maxSR>180.0</maxSR><maxRecords>50000</maxRecords><verbosity>true</verbosity><testQuery><ra>268.3137917</ra><dec>-30.1325556</dec><sr>0.005555555555555556</sr></testQuery></capability><coverage><spatial>5/7179 7205 7216 6/28706-28707 28713 28725 28727-28728 28730-28731 28734 28768 28770 28776 28778-28779 28819 28857 28868-28870 28880 28882-28883 28887 28910-28911 29062 29065 29068 42351</spatial><footprint ivo-id="ivo://ivoa.net/std/moc">https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AcA/62/33?format=ascii</footprint><waveband>Optical</waveband></coverage><tableset><schema><name>default</name><table><name>J/AcA/62/33/table12</name><description>OGLE-II identification, coordinates, apparent magnitudes, relative radii and periods for the gold and silver sample RG eclipsing binary pairs identified (tables 1 &amp; 2 of the paper)</description><column><name>recno</name><description>Record number assigned by the VizieR team. 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