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<ri:Resource created="1999-05-12T22:28:08Z" 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>Asiago Catalogue of QSOs</title><shortName>VII/69</shortName><identifier>ivo://CDS.VizieR/VII/69</identifier><curation><publisher ivo-id="ivo://CDS">CDS</publisher><creator><name>Barbieri C.</name></creator><creator><name>Capaccioli M.</name></creator><creator><name>Custiani S.</name></creator><creator><name>Nardo G.</name></creator><creator><name>Omizzolo A.</name></creator><date role="Updated">2019-08-06T12:19:22Z</date><date role="Created">1999-05-12T22:28:08Z</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>quasars</subject><subject>redshifted</subject><description>The Asiago Catalog of 2004 Quasi Stellar Objects (QSOs) is an updated version of that published by Barbieri, Capaccioli and Zambon in 1975 (1975MmSAI..46..461B). Most of the information of these objects are taken from the literature published before Dec. 31, 1981. Specifically, the catalog.dat file contains names, equatorial and galactic coordinates, photometry, redshifts, information on radio emission, variability, morphology, presence of absorption lines, for 2004 QSOs. The indexed references (in refs.dat) and further detailed information (in remarks.dat) concerning absorption spectra, X-ray properties, and cross-reference tables are also provided.</description><source format="bibcode">1983MmSAI..54..601B</source><referenceURL>https://cdsarc.cds.unistra.fr/viz-bin/cat/VII/69</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/VII/158">VII/158 : Catalog of Quasi-Stellar Objects (Hewitt &amp; Burbidge 1993)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/VII/188">VII/188 : Quasars and Active Galactic Nuclei (7th Ed.) 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Should Not be used for identification.</description><ucd>meta.record</ucd><dataType xsi:type="vs:VOTableType">int</dataType></column><column><name>u_Vmag</name><description>[-] The '-' means uncertain photometry</description><ucd>meta.code.error</ucd><dataType xsi:type="vs:VOTableType" arraysize="1*">char</dataType></column><column><name>Vmag</name><description>? Visual magnitude</description><unit>mag</unit><ucd>phot.mag;em.opt.V</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>B-V</name><description>? (B-V) color</description><unit>mag</unit><ucd>phot.color;em.opt.B;em.opt.V</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>U-B</name><description>? (U-B) color</description><unit>mag</unit><ucd>phot.color;em.opt.U;em.opt.B</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>r_Vmag</name><description>? Reference for photometry</description><ucd>meta.ref;pos.frame</ucd><dataType xsi:type="vs:VOTableType">int</dataType><flag>nullable</flag></column><column><name>u_z</name><description>[-] The '-' means uncertain redshift</description><ucd>meta.code.error;src.redshift</ucd><dataType xsi:type="vs:VOTableType" arraysize="1*">char</dataType></column><column><name>z</name><description>? Redshift, normally from emission line</description><ucd>src.redshift</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>r_z(1)</name><description>? References of redshift (more in remarks)</description><ucd>meta.ref;pos.frame</ucd><dataType xsi:type="vs:VOTableType">int</dataType><flag>nullable</flag></column><column><name>r_z(2)</name><description>? References of redshift (more in remarks)</description><ucd>meta.ref;pos.frame</ucd><dataType xsi:type="vs:VOTableType">int</dataType><flag>nullable</flag></column><column><name>RA1950</name><description>Right Ascension 1950</description><ucd>pos.eq.ra;meta.main</ucd></column><column><name>DE1950</name><description>Declination 1950</description><ucd>pos.eq.dec;meta.main</ucd></column><column><name>r_DE1950</name><description>Reference of position</description><ucd>meta.ref</ucd><dataType xsi:type="vs:VOTableType">int</dataType></column><column><name>NoteSum</name><description>? SumNote (1)</description><ucd>meta.note</ucd><dataType xsi:type="vs:VOTableType">int</dataType><flag>nullable</flag></column><column><name>u_NoteSum</name><description>? Uncertainties on SumNote (1)</description><ucd>meta.code.error</ucd><dataType xsi:type="vs:VOTableType">int</dataType><flag>nullable</flag></column><column><name>ExpRef</name><description>? 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Should Not be used for identification.</description><ucd>meta.record</ucd><dataType xsi:type="vs:VOTableType">int</dataType></column><column><name>HHMM+DDd</name><description>Designation based on position</description><ucd>meta.id</ucd><dataType xsi:type="vs:VOTableType" arraysize="8*">char</dataType></column><column><name>Text</name><description>Text of remark, includes references.</description><ucd>meta.note</ucd><dataType xsi:type="vs:VOTableType" arraysize="79*">char</dataType></column></table><table><name>VII/69/refs</name><description>References quoted in catalog and remarks.</description><column><name>recno</name><description>Record number assigned by the VizieR team. 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