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<ri:Resource created="2000-11-28T10:23:34Z" 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>Northern RASS X-ray sources catalog</title><shortName>J/ApJS/117/319</shortName><identifier>ivo://CDS.VizieR/J/ApJS/117/319</identifier><altIdentifier>doi:10.26093/cds/vizier.21170319</altIdentifier><curation><publisher ivo-id="ivo://CDS">CDS</publisher><creator><name>Appenzeller I.</name></creator><creator><name>Thiering I.</name></creator><creator><name>Zickgraf F.-J.</name></creator><creator><name>Krautter J.</name></creator><creator><name>Voges W.,Chavarria C.</name></creator><creator><name>Kneer R.</name></creator><creator><name>Mujica R.</name></creator><creator><name>Pakull M.</name></creator><creator><name>Rosso C.</name></creator><creator><name>Ruzicka F.,Serrano A.</name></creator><creator><name>Ziegler B.</name></creator><date role="Updated">2000-11-28T09:23:48Z</date><date role="Created">2000-11-28T10:23:34Z</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>radio-sources</subject><subject>photometry</subject><description>We present a catalog of optical identifications of a representative sample of northern ({delta})&gt;-9{deg}) ROSAT All-Sky Survey (RASS) sources. A full identification has been carried out for a count-rate- and area-limited complete RASS subsample comprising 674 sources. All sources are within six study areas outside the galactic plane (|b|&gt;19.6{deg}), one area being near the north Galactic pole and one near the north ecliptic pole.</description><source format="bibcode">1998ApJS..117..319A</source><referenceURL>https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/117/319</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/IX/10">IX/10 : ROSAT All-Sky Bright Source Catalogue (1RXS) (Voges+ 1996)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/VIII/14">VIII/14 : 87GB Catalog of radio sources (Gregory et al., 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