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<ri:Resource created="2012-07-24T09:10:32Z" 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>CFHT M33 extended sources catalog</title><shortName>J/ApJ/720/1674</shortName><identifier>ivo://CDS.VizieR/J/ApJ/720/1674</identifier><altIdentifier>doi:10.26093/cds/vizier.17201674</altIdentifier><curation><publisher ivo-id="ivo://CDS">CDS</publisher><creator><name>San Roman I.</name></creator><creator><name>Sarajedini A.</name></creator><creator><name>Aparicio A.</name></creator><date role="Updated">2017-12-05T05:09:50Z</date><date role="Created">2012-07-24T09:10:32Z</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>galaxies</subject><subject>stellar-associations</subject><subject>infrared-photometry</subject><subject>visible-astronomy</subject><subject>broad-band-photometry</subject><subject>astronomical-object-identification</subject><description>We present a catalog of 2990 extended sources in a 1x1{deg} area centered on M33 using the MegaCam camera on the 3.6m Canada-France-Hawaii Telescope. The catalog includes 599 new candidate stellar clusters, 204 previously confirmed clusters, 1969 likely background galaxies, and 218 unknown extended objects. We present ugriz integrated magnitudes of the candidates and confirmed star clusters (SCs) as well as the full width at half maximum, ellipticity, and stellarity. Based on the properties of the confirmed SCs, we select a sub-sample of highly probable clusters composed of 246 objects. The integrated photometry of the complete cluster catalog reveals a wide range of colors of -0.4&lt;(g-r)&lt;1.5 and -1.0&lt;(r-i)&lt;1.0 with no obvious cluster subpopulations. Comparisons with models of simple stellar populations suggest a large range of ages some as old as ~10Gyr.</description><source format="bibcode">2010ApJ...720.1674S</source><referenceURL>https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/720/1674</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/699/839">J/ApJ/699/839 : Newly identified star clusters in M33. II. (San Roman+, 2009)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/ApJ/700/103">J/ApJ/700/103 : Ages of star clusters in M33 (Park+, 2009)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/AcA/59/47">J/AcA/59/47 : HST photometry of M33 stellar clusters (Zloczewski+, 2009)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/AcA/58/23">J/AcA/58/23 : Photometric survey for M33 star clusters (Zloczewski+, 2008)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/AJ/134/447">J/AJ/134/447 : Catalog of star cluster candidates in M 33 (Sarajedini+, 2007)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/AJ/134/2168">J/AJ/134/2168 : BVI photometry of M33 star clusters (Park+, 2007)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/MNRAS/371/1405">J/MNRAS/371/1405 : Variables in M33 (Hartman+, 2006)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/A+A/444/831">J/A+A/444/831 : New star clusters in M33 (Bedin+, 2005)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/A+A/366/498">J/A+A/366/498 : VI photometry of M33 star clusters (Chandar+, 2001)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/ApJS/122/431">J/ApJS/122/431 : Star Clusters in M33 (Chandar+, 1999)</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/720/1674</accessURL><mirrorURL title="VizieR at IUCAA: Pune, India">https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/720/1674</mirrorURL><mirrorURL title="VizieR at SAAO: SAAO, South Africa">http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/720/1674</mirrorURL></interface></capability><capability><interface xsi:type="vs:ParamHTTP"><accessURL use="base">https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/720/1674</accessURL><mirrorURL title="VizieR at IUCAA: Pune, India">https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/720/1674</mirrorURL><mirrorURL title="VizieR at SAAO: SAAO, South Africa">http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/720/1674</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/ApJ/720/1674/table1 (Extended source catalog)</description><interface xsi:type="vs:ParamHTTP" role="std"><accessURL use="base">https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/720/1674/table1?</accessURL><mirrorURL title="VizieR at IUCAA: Pune, India">https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/720/1674/table1?</mirrorURL><mirrorURL title="VizieR at SAAO: SAAO, South Africa">http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/720/1674/table1?</mirrorURL><queryType>GET</queryType><resultType>text/xml+votable</resultType></interface><maxSR>180.0</maxSR><maxRecords>50000</maxRecords><verbosity>true</verbosity><testQuery><ra>22.8880417</ra><dec>31.0682361</dec><sr>0.005555555555555556</sr></testQuery></capability><coverage><spatial>6/2154 2155 2240 2241</spatial><spectral>1.7965626859802475e-19 5.950631229554308e-19</spectral><footprint ivo-id="ivo://ivoa.net/std/moc">https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/720/1674?format=ascii</footprint><waveband>Optical</waveband><waveband>Infrared</waveband></coverage><tableset><schema><name>default</name><table><name>J/ApJ/720/1674/table1</name><description>Extended source catalog</description><column><name>recno</name><description>Record number assigned by the VizieR team. 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