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<ri:Resource created="2001-01-27T15:24:06Z" status="active" updated="2025-05-19T09:50:00Z" 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>VI photometry of M33 star clusters</title><shortName>J/A+A/366/498</shortName><identifier>ivo://CDS.VizieR/J/A+A/366/498</identifier><altIdentifier>doi:10.26093/cds/vizier.33660498</altIdentifier><curation><publisher ivo-id="ivo://CDS">CDS</publisher><creator><name>Chandar R.</name></creator><creator><name>Bianchi L.</name></creator><creator><name>Ford H. C.</name></creator><date role="Updated">2001-01-27T14:25:52Z</date><date role="Created">2001-01-27T15:24:06Z</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>globular-star-clusters</subject><subject>infrared-photometry</subject><subject>visible-astronomy</subject><subject>photometry</subject><description>We have detected 102 star clusters in M 33, from 35 deep Hubble Space Telescope (HST) WFPC2 fields taken from our program and from the HST archive. Twenty-eight fields have V and I band imaging, and an additional seven fields are imaged in a single V filter. Eighty-two of the clusters were previously unknown. Integrated photometry reveals that 25 clusters have (V-I) colors typical of those found in Galactic globular clusters (only ten of these objects were previously known). Our discovery of 15 new globular cluster candidates increases previous estimates of the old cluster population in M 33 by ~60%. An additional eleven objects (only two were previously known) have colors expected for intermediate age clusters. The new clusters have a range of ages from 6 million years to &gt;15Gyrs, and masses between 10^2^M_{sun}_-10^6^M_{sun}_, although these parameters are estimated from only one color.</description><source format="bibcode">2001A&amp;A...366..498C</source><referenceURL>https://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/366/498</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/ApJS/122/431">J/ApJS/122/431 : Star Clusters in M33. I. (Chandar+, 1999)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/AJ/121/861">J/AJ/121/861 : BVI photometry of central part of M33 (Macri+, 2001)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/AJ/121/870">J/AJ/121/870 : Variables in the central part of M33 BVI phot. (Macri+, 2001)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/AJ/110/1649">J/AJ/110/1649 : HST VI photometry near the M33 nucleus (Mighell+ 1995)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/AJ/110/2715">J/AJ/110/2715 : UBV photometry in NGC 6822, M31 and M33 (Massey+ 1995)</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/366/498</accessURL><mirrorURL title="VizieR at IUCAA: Pune, India">https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/366/498</mirrorURL><mirrorURL title="VizieR at SAAO: SAAO, South Africa">http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/366/498</mirrorURL></interface></capability><capability><interface xsi:type="vs:ParamHTTP"><accessURL use="base">https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/366/498</accessURL><mirrorURL title="VizieR at IUCAA: Pune, India">https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/366/498</mirrorURL><mirrorURL title="VizieR at SAAO: SAAO, South Africa">http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/366/498</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/A+A/366/498/table2 (M33 clusters detected in deep HST WFPC2 fields)</description><interface xsi:type="vs:ParamHTTP" role="std"><accessURL use="base">https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/366/498/table2?</accessURL><mirrorURL title="VizieR at IUCAA: Pune, India">https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/366/498/table2?</mirrorURL><mirrorURL title="VizieR at SAAO: SAAO, South Africa">http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/366/498/table2?</mirrorURL><queryType>GET</queryType><resultType>text/xml+votable</resultType></interface><maxSR>180.0</maxSR><maxRecords>50000</maxRecords><verbosity>true</verbosity><testQuery><ra>23.4375</ra><dec>30.7963639</dec><sr>0.005555555555555556</sr></testQuery></capability><facility>HST</facility><coverage><spatial>6/2154-2155 2240</spatial><footprint ivo-id="ivo://ivoa.net/std/moc">https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/366/498?format=ascii</footprint><waveband>Optical</waveband><waveband>Infrared</waveband></coverage><tableset><schema><name>default</name><table><name>J/A+A/366/498/table2</name><description>M33 clusters detected in deep HST WFPC2 fields</description><column><name>recno</name><description>Record number assigned by the VizieR team. 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