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<ri:Resource created="2002-01-29T20:42:25Z" 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>Old Stellar Populations of the SMC</title><shortName>J/ApJ/562/303</shortName><identifier>ivo://CDS.VizieR/J/ApJ/562/303</identifier><altIdentifier>doi:10.26093/cds/vizier.15620303</altIdentifier><curation><publisher ivo-id="ivo://CDS">CDS</publisher><creator><name>Dolphin A.E.</name></creator><creator><name>Walker A.R.</name></creator><creator><name>Hodge P.W.</name></creator><creator><name>Mateo M.</name></creator><creator><name>Olszewski E.W.,Schommer R.A.</name></creator><creator><name>Suntzeff N.B.</name></creator><date role="Updated">2002-01-29T19:42:42Z</date><date role="Created">2002-01-29T20:42:25Z</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>magellanic-clouds</subject><subject>stellar-populations</subject><description>Photometry is given for six data sets of SMC photometry, all in the V and I bands. Field names in the file summary below are the names used in the STScI archive for the WFPC2 observations. WFPC2 observations of NGC 121 and the SMC fields reach limiting magnitudes of V=26 and I=25.5; ground-based observations cover a square region of 14.5 arcmin on a side and reach V=25.5 and I=24.5.</description><source format="bibcode">2001ApJ...562..303D</source><referenceURL>https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/562/303</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/ApJ/562/303</accessURL><mirrorURL title="VizieR at IUCAA: Pune, India">https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/562/303</mirrorURL><mirrorURL title="VizieR at SAAO: SAAO, South Africa">http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/562/303</mirrorURL></interface></capability><capability><interface xsi:type="vs:ParamHTTP"><accessURL use="base">https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/562/303</accessURL><mirrorURL title="VizieR at IUCAA: Pune, India">https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/562/303</mirrorURL><mirrorURL title="VizieR at SAAO: SAAO, South Africa">http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/562/303</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><facility>HST</facility><coverage><footprint ivo-id="ivo://ivoa.net/std/moc"/><waveband>Optical</waveband></coverage><tableset><schema><name>default</name><table><name>J/ApJ/562/303/field1</name><description>SMC-004600-703500 photometry</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>Chip</name><description>WFPC2 chip number; 1=PC1, 2=WFC2, etc.</description><ucd>obs.field</ucd><dataType xsi:type="vs:VOTableType" arraysize="1*">char</dataType></column><column><name>X</name><description>X position</description><unit>pix</unit><ucd>pos.cartesian.x;instr.det</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>Y</name><description>Y position</description><unit>pix</unit><ucd>pos.cartesian.y;instr.det</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>Vmag</name><description>V magnitude in HST F555W filter</description><unit>mag</unit><ucd>phot.mag;em.opt.V</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>e_Vmag</name><description>V uncertainty</description><unit>mag</unit><ucd>stat.error</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>Imag</name><description>I magnitude in HST F814W filter</description><unit>mag</unit><ucd>phot.mag;em.opt.I</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>e_Imag</name><description>I uncertainty</description><unit>mag</unit><ucd>stat.error</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column></table><table><name>J/ApJ/562/303/field2</name><description>SMC-004900-704800 photometry</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>Chip</name><description>WFPC2 chip number; 1=PC1, 2=WFC2, etc.</description><ucd>obs.field</ucd><dataType xsi:type="vs:VOTableType" arraysize="1*">char</dataType></column><column><name>X</name><description>X position</description><unit>pix</unit><ucd>pos.cartesian.x;instr.det</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>Y</name><description>Y position</description><unit>pix</unit><ucd>pos.cartesian.y;instr.det</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>Vmag</name><description>V magnitude in HST F555W filter</description><unit>mag</unit><ucd>phot.mag;em.opt.V</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>e_Vmag</name><description>V uncertainty</description><unit>mag</unit><ucd>stat.error</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>Imag</name><description>I magnitude in HST F814W filter</description><unit>mag</unit><ucd>phot.mag;em.opt.I</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>e_Imag</name><description>I uncertainty</description><unit>mag</unit><ucd>stat.error</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column></table><table><name>J/ApJ/562/303/field3</name><description>SMC-004612-704700 photometry</description><column><name>e_Vmag</name><description>V uncertainty</description><unit>mag</unit><ucd>stat.error</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>X</name><description>X position</description><unit>pix</unit><ucd>pos.cartesian.x;instr.det</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>Y</name><description>Y position</description><unit>pix</unit><ucd>pos.cartesian.y;instr.det</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>Chip</name><description>WFPC2 chip number; 1=PC1, 2=WFC2, etc.</description><ucd>obs.field</ucd><dataType xsi:type="vs:VOTableType" arraysize="1*">char</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>Vmag</name><description>V magnitude in HST F555W filter</description><unit>mag</unit><ucd>phot.mag;em.opt.V</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>Imag</name><description>I magnitude in HST F814W filter</description><unit>mag</unit><ucd>phot.mag;em.opt.I</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>e_Imag</name><description>I uncertainty</description><unit>mag</unit><ucd>stat.error</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column></table><table><name>J/ApJ/562/303/field4</name><description>SMC-004900-703300 photometry</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>Chip</name><description>WFPC2 chip number; 1=PC1, 2=WFC2, etc.</description><ucd>obs.field</ucd><dataType xsi:type="vs:VOTableType" arraysize="1*">char</dataType></column><column><name>X</name><description>X position</description><unit>pix</unit><ucd>pos.cartesian.x;instr.det</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>Y</name><description>Y position</description><unit>pix</unit><ucd>pos.cartesian.y;instr.det</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>Vmag</name><description>V magnitude in HST F555W filter</description><unit>mag</unit><ucd>phot.mag;em.opt.V</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>e_Vmag</name><description>V uncertainty</description><unit>mag</unit><ucd>stat.error</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>Imag</name><description>I magnitude in HST F814W filter</description><unit>mag</unit><ucd>phot.mag;em.opt.I</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>e_Imag</name><description>I uncertainty</description><unit>mag</unit><ucd>stat.error</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column></table><table><name>J/ApJ/562/303/ground</name><description>Ground-based photometry</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>X</name><description>X position</description><unit>pix</unit><ucd>pos.cartesian.x;instr.det</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>Y</name><description>Y position</description><unit>pix</unit><ucd>pos.cartesian.y;instr.det</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>Vmag</name><description>V magnitude</description><unit>mag</unit><ucd>phot.mag;em.opt.V</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>V-I</name><description>V-I color</description><unit>mag</unit><ucd>phot.color;em.opt.V;em.opt.I</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>e_Vmag</name><description>V uncertainty</description><unit>mag</unit><ucd>stat.error</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>e_V-I</name><description>V-I uncertainty</description><unit>mag</unit><ucd>stat.error</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column></table><table><name>J/ApJ/562/303/ngc121</name><description>NGC121 photometry</description><column><name>e_Vmag</name><description>V uncertainty</description><unit>mag</unit><ucd>stat.error</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>recno</name><description>Record number assigned by the VizieR team. 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