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<ri:Resource created="2012-05-13T15:28:06Z" 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>BL Lac objects beyond z=1.3</title><shortName>J/A+A/538/A26</shortName><identifier>ivo://CDS.VizieR/J/A+A/538/A26</identifier><altIdentifier>doi:10.26093/cds/vizier.35380026</altIdentifier><curation><publisher ivo-id="ivo://CDS">CDS</publisher><creator><name>Rau A.</name></creator><creator><name>Schady P.</name></creator><creator><name>Greiner J.</name></creator><creator><name>Salvato M.</name></creator><creator><name>Ajello M.</name></creator><creator><name>Bottacini E.,Gehrels N.</name></creator><creator><name>Afonso P.M.J.</name></creator><creator><name>Elliott J.</name></creator><creator><name>Filgas R.</name></creator><creator><name>Kann D.A.</name></creator><creator><name>Klose S.,Kruehler T.</name></creator><creator><name>Nardini M.</name></creator><creator><name>Nicuesa Guelbenzu A.</name></creator><creator><name>Olivares E.F.</name></creator><creator><name>Rossi A.,Sudilovsky V.</name></creator><creator><name>Updike A.C.</name></creator><creator><name>Hartmann D.H.</name></creator><date role="Updated">2017-06-13T11:09:04Z</date><date role="Created">2012-05-13T15:28:06Z</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>bl-lacertae-objects</subject><subject>redshifted</subject><subject>visible-astronomy</subject><subject>sloan-photometry</subject><subject>infrared-photometry</subject><subject>ultraviolet-photometry</subject><description>Observations of the {gamma}-ray sky with Fermi led to significant advances towards understanding blazars, the most extreme class of active galactic nuclei. A large fraction of the population detected by Fermi is formed by BL Lacertae (BL Lac) objects, whose sample has always suffered from a severe redshift incompleteness due to the quasi-featureless optical spectra. Our goal is to provide a significant increase of the number of confirmed high-redshift BL Lac objects contained in the 2 LAC Fermi/LAT catalog.</description><source format="bibcode">2012A&amp;A...538A..26R</source><referenceURL>https://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/538/A26</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/188/405">J/ApJS/188/405 : Fermi-LAT first source catalog (1FGL) (Abdo+, 2010)</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/538/A26</accessURL><mirrorURL title="VizieR at IUCAA: Pune, India">https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/538/A26</mirrorURL><mirrorURL title="VizieR at SAAO: SAAO, South Africa">http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/538/A26</mirrorURL></interface></capability><capability><interface xsi:type="vs:ParamHTTP"><accessURL use="base">https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/538/A26</accessURL><mirrorURL title="VizieR at IUCAA: Pune, India">https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/538/A26</mirrorURL><mirrorURL title="VizieR at SAAO: SAAO, South Africa">http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/538/A26</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/538/A26/blazars (The BL Blac objects studied, with Swift/UVOT and GROND photometries, SED fits and redshift solutions)</description><interface xsi:type="vs:ParamHTTP" role="std"><accessURL use="base">https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/538/A26/blazars?</accessURL><mirrorURL title="VizieR at IUCAA: Pune, India">https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/538/A26/blazars?</mirrorURL><mirrorURL title="VizieR at SAAO: SAAO, South Africa">http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/538/A26/blazars?</mirrorURL><queryType>GET</queryType><resultType>text/xml+votable</resultType></interface><maxSR>180.0</maxSR><maxRecords>50000</maxRecords><verbosity>true</verbosity><testQuery><ra>0.325</ra><dec>-7.7741389</dec><sr>0.005555555555555556</sr></testQuery></capability><coverage><spatial>6/250 514 2094 4312 4865-4866 8321 8615 8746 8915 10280 16510 16665 16816 17347 17579 17611 18119 18210 18253 18402 18457 19143 19487 19723 19756 19907 20016 20049 20202 20611 20777 21160 21179 23011 23015 23127 23181 24027 24902 25910 26254 26256 26483 26539 26550 26798 26983 27082 27217 27523 28342 28350 28370 30012 31663 33040 33370 33467 33611 33744 33825 33865 33880 33898 34163 34317 34461 34528 34747 34767 35074 35076 35199 35252 35700 35722 35981 36882 37045 37529 38481 38766 38937 39142 39466 39505 40689 40703 40766 40811 40874 43447 43596-43597 45482 45836 46204 46258 46444 47398 49037</spatial><spectral>7.814024453220682e-20 1.2058628298368645e-18</spectral><footprint ivo-id="ivo://ivoa.net/std/moc">https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/538/A26?format=ascii</footprint><waveband>UV</waveband><waveband>Optical</waveband><waveband>Infrared</waveband></coverage><tableset><schema><name>default</name><table><name>J/A+A/538/A26/blazars</name><description>The BL Blac objects studied, with Swift/UVOT and GROND photometries, SED fits and redshift solutions</description><column><name>SimbadName</name><description>Simbad column added by the CDS</description><ucd>meta.id</ucd><dataType xsi:type="vs:VOTableType" arraysize="29*">char</dataType></column><column><name>Name</name><description>Name</description><ucd>meta.id;meta.main</ucd><dataType xsi:type="vs:VOTableType" arraysize="24*">char</dataType></column><column><name>recno</name><description>Record number assigned by the VizieR team. 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GROND J AB magnitude (G1)</description><unit>mag</unit><ucd>phot.mag;em.IR.J</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>e_Jmag</name><description>? rms uncertainty on Jmag</description><unit>mag</unit><ucd>stat.error;phot.mag;em.IR.J</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>Hmag</name><description>? GROND H AB magnitude (G1)</description><unit>mag</unit><ucd>phot.mag;em.IR.H</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>e_Hmag</name><description>? rms uncertainty on Hmag</description><unit>mag</unit><ucd>stat.error;phot.mag;em.IR.H</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>Kmag</name><description>? 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