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<ri:Resource created="2009-01-02T20:47:22Z" 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>GALEX ultraviolet variability catalog</title><shortName>J/AJ/130/825</shortName><identifier>ivo://CDS.VizieR/J/AJ/130/825</identifier><altIdentifier>doi:10.26093/cds/vizier.51300825</altIdentifier><curation><publisher ivo-id="ivo://CDS">CDS</publisher><creator><name>Welsh B.Y.</name></creator><creator><name>Wheatley J.M.</name></creator><creator><name>Heafield K.</name></creator><creator><name>Seibert M.</name></creator><creator><name>Browne S.E.</name></creator><creator><name>Salim S.,Rich R.M.</name></creator><creator><name>Barlow T.A.</name></creator><creator><name>Bianchi L.</name></creator><creator><name>Byun Y.-I.</name></creator><creator><name>Donas J.</name></creator><creator><name>Forster K.,Friedman P.G.</name></creator><creator><name>Heckman T.M.</name></creator><creator><name>Jelinsky P.N.</name></creator><creator><name>Lee Y.-W.</name></creator><creator><name>Madore B.F.,Malina R.F.</name></creator><creator><name>Martin D.C.</name></creator><creator><name>Milliard B.</name></creator><creator><name>Morrissey P.</name></creator><creator><name>Neff S.G.,Schiminovich D.</name></creator><creator><name>Siegmund O.H.W.</name></creator><creator><name>Small T.</name></creator><creator><name>Szalay A.S.</name></creator><creator><name>Wyder T.K.</name></creator><date role="Updated">2018-01-08T06:37:42Z</date><date role="Created">2009-01-02T20:47:22Z</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>variable-stars</subject><subject>ultraviolet-astronomy</subject><subject>photometry</subject><description>We present version 1.0 of the NASA Galaxy Evolution Explorer (GALEX) ultraviolet variability (GUVV) catalog, which contains information on 84 time-variable and transient sources gained with simultaneous near-ultraviolet (NUV) and far-ultraviolet (FUV) photometric observations. These time-variable sources were serendipitously revealed in the various 1.2{deg} diameter star fields currently being surveyed by the GALEX satellite in two ultraviolet bands (NUV 1750-2750{AA}, FUV 1350-1750{AA}) with limiting AB magnitudes of 23-25. The largest amplitude variable objects currently detected by GALEX are M dwarf flare stars, which can brighten by 5-10mag in both the NUV and FUV bands during short-duration (&lt;500s) outbursts. Other types of large-amplitude ultraviolet variable objects include ab-type RR Lyrae stars, which can vary periodically by 2-5mag in the GALEX FUV band. This first GUVV catalog lists galactic positions and possible source identifications in order to provide the astronomical community with a list of time-variable objects that can now be repeatedly observed at other wavelengths.</description><source format="bibcode">2005AJ....130..825W</source><referenceURL>https://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/130/825</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/I/284">I/284 : The USNO-B1.0 Catalog (Monet+ 2003)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/II/259">II/259 : The SDSS Photometric Catalog, Release 3 (Abazajian+ 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/AJ/130/825</accessURL><mirrorURL title="VizieR at IUCAA: Pune, India">https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/130/825</mirrorURL><mirrorURL title="VizieR at SAAO: SAAO, South Africa">http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/130/825</mirrorURL></interface></capability><capability><interface xsi:type="vs:ParamHTTP"><accessURL use="base">https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/130/825</accessURL><mirrorURL title="VizieR at IUCAA: Pune, India">https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/130/825</mirrorURL><mirrorURL title="VizieR at SAAO: SAAO, South Africa">http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/130/825</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/AJ/130/825/table2 (GALEX Ultraviolet Variability catalog, V1.0.)</description><interface xsi:type="vs:ParamHTTP" role="std"><accessURL use="base">https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/130/825/table2?</accessURL><mirrorURL title="VizieR at IUCAA: Pune, India">https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/130/825/table2?</mirrorURL><mirrorURL title="VizieR at SAAO: SAAO, South Africa">http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/130/825/table2?</mirrorURL><queryType>GET</queryType><resultType>text/xml+votable</resultType></interface><maxSR>180.0</maxSR><maxRecords>50000</maxRecords><verbosity>true</verbosity><testQuery><ra>10.949583</ra><dec>42.281917</dec><sr>0.005555555555555556</sr></testQuery></capability><coverage><spatial>6/2624 2752 4165 4198 4201 5021 5056 5606 5624 5961 6047 6071 6090 7451 11252 11949 25083 25345 25463 26126 26151 26159 26243 26252 26264 26271 26972 27026 27247 27256 27258 27298 27318 27325 27368 28110 28122 35383 38664 38841</spatial><spectral>2.85864675833786e-19 4.653515163505597e-19</spectral><footprint ivo-id="ivo://ivoa.net/std/moc">https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/130/825?format=ascii</footprint><waveband>UV</waveband><waveband>Optical</waveband></coverage><tableset><schema><name>default</name><table><name>J/AJ/130/825/table2</name><description>GALEX Ultraviolet Variability catalog, V1.0.</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>GUVV</name><description>GALEX Ultraviolet Variability catalog ID (JHHMMSS.s+DDMMSS.s)</description><ucd>meta.id;meta.main</ucd><dataType xsi:type="vs:VOTableType" arraysize="18*">char</dataType></column><column><name>Var</name><description>[VT] Variable or Transient variability type</description><ucd>meta.code;src.var</ucd><dataType xsi:type="vs:VOTableType" arraysize="1*">char</dataType></column><column><name>OName</name><description>Possible identification</description><ucd>meta.id.cross</ucd><dataType xsi:type="vs:VOTableType" arraysize="24*">char</dataType></column><column><name>Type</name><description>Most likely source type (2)</description><ucd>src.class</ucd><dataType xsi:type="vs:VOTableType" arraysize="18*">char</dataType></column><column><name>Survey</name><description>GALEX survey mode of the sky field in which the object was discovered (3)</description><ucd>meta.note</ucd><dataType xsi:type="vs:VOTableType" arraysize="3*">char</dataType></column><column><name>NUVobs</name><description>Number of NUV (175-275nm) observations</description><ucd>meta.number</ucd><dataType xsi:type="vs:VOTableType">int</dataType></column><column><name>NUVdet</name><description>Number of NUV (175-275nm) detections</description><ucd>meta.number</ucd><dataType xsi:type="vs:VOTableType">int</dataType></column><column><name>NUVmax</name><description>Maximum near-UV (175-275nm) magnitude</description><unit>mag</unit><ucd>phot.mag;em.UV</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>NUVdm</name><description>? The near-UV (175-275nm) amplitude</description><unit>mag</unit><ucd>src.var.amplitude;em.UV.200-300nm</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>FUVobs</name><description>Number of FUV (135-175nm) observations</description><ucd>meta.number</ucd><dataType xsi:type="vs:VOTableType">int</dataType></column><column><name>FUVdet</name><description>Number of FUV (135-175nm) detections</description><ucd>meta.number</ucd><dataType xsi:type="vs:VOTableType">int</dataType></column><column><name>FUVmax</name><description>? Maximum far-UV (135-175nm) magnitude</description><unit>mag</unit><ucd>phot.mag;em.UV</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>FUVdm</name><description>? The far-UV (135-175nm) amplitude</description><unit>mag</unit><ucd>src.var.amplitude;em.UV.100-200nm</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>gmag</name><description>? SDSS DR3 (Cat. &lt;II/259&gt;) g band magnitude</description><unit>mag</unit><ucd>phot.mag;em.opt.B</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>f_gmag</name><description>[*] Indicates an uncertain SDSS magnitude</description><ucd>meta.code</ucd><dataType xsi:type="vs:VOTableType" arraysize="1*">char</dataType></column><column><name>rmag</name><description>? 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