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<ri:Resource created="2007-08-01T11:27:28Z" 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>Radio-loud AGN in SDSS</title><shortName>J/MNRAS/362/9</shortName><identifier>ivo://CDS.VizieR/J/MNRAS/362/9</identifier><altIdentifier>doi:10.26093/cds/vizier.73620009</altIdentifier><curation><publisher ivo-id="ivo://CDS">CDS</publisher><creator><name>Best P.N.</name></creator><creator><name>Kauffmann G.</name></creator><creator><name>Heckman T.M.</name></creator><creator><name>Ivezic Z.</name></creator><date role="Updated">2024-07-01T20:15:19Z</date><date role="Created">2007-08-01T11:27:28Z</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>surveys</subject><subject>radio-galaxies</subject><subject>active-galactic-nuclei</subject><subject>redshifted</subject><description>A sample of 2712 radio-luminous galaxies is defined from the second data release of the Sloan Digital Sky Survey (SDSS) by cross-comparing the main spectroscopic galaxy sample with two radio surveys: the National Radio Astronomy Observatories (NRAO) Very Large Array (VLA) Sky Survey (NVSS, &lt;VIII/65&gt;) and the Faint Images of the Radio Sky at Twenty centimeters (FIRST, &lt;VIII/71&gt;) survey. The comparison is carried out in a multistage process and makes optimal use of both radio surveys by exploiting the sensitivity of the NVSS to extended and multicomponent radio sources in addition to the high angular resolution of the FIRST images. A radio source sample with 95 per cent completeness and 98.9% reliability is achieved, far better than would be possible for this sample if only one of the surveys was used. The radio source sample is then divided into two classes: radio-loud active galactic nuclei (AGN) and galaxies in which the radio emission is dominated by star formation. The division is based on the location of a galaxy in the plane of 4000{AA} break strength versus radio luminosity per unit stellar mass and provides a sample of 2215 radio-loud AGN and 497 star-forming galaxies brighter than 5mJy at 1.4GHz. A full catalogue of positions and radio properties is provided for these sources.</description><source format="bibcode">2005MNRAS.362....9B</source><referenceURL>https://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/362/9</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/II/259">II/259 : The SDSS Photometric Catalog, Release 3 (Abazajian+ 2005)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/VIII/65">VIII/65 : 1.4GHz NRAO VLA Sky Survey (NVSS) (Condon+ 1998)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/VIII/71">VIII/71 : The FIRST Survey Catalog, Version 03Apr11 (Becker+ 2003)</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/MNRAS/362/9</accessURL><mirrorURL title="VizieR at IUCAA: Pune, India">https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/362/9</mirrorURL><mirrorURL title="VizieR at SAAO: SAAO, South Africa">http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/362/9</mirrorURL></interface></capability><capability><interface xsi:type="vs:ParamHTTP"><accessURL use="base">https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/362/9</accessURL><mirrorURL title="VizieR at IUCAA: Pune, India">https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/362/9</mirrorURL><mirrorURL title="VizieR at SAAO: SAAO, South 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27418-27419 27424 27427-27428 27430 27432-27434 27436 27440 27456 27458 27648-27650 27656-27658 27660-27662 27667-27668 27671-27672 27675-27677 27681-27682 27692 27694 27696-27697 27777 31292 31310 31322 31326 31332-31334 31336 31339 31344 31354-31355 31358 31367 31370-31371 31373-31375 31377-31378 31385-31388 31392 31394-31395 31404-31406 31408-31410 31415 31418-31421 31423 31425 31431 31433 31435-31437 31442 31458-31459 32499-32500 32503 32508-32509 32511 32680 32682 36607 36763 36765-36766 36774-36775 36777-36780 36782 36785 36787-36789 36792 36794 36803 36808-36809 40959 45039 45043-45046 45050-45052 48990 49007 49010-49011 49013-49016 49018 49020 49094 49100 49106 49112</spatial><footprint ivo-id="ivo://ivoa.net/std/moc">https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/362/9?format=ascii</footprint><waveband>Optical</waveband><waveband>Radio</waveband></coverage><tableset><schema><name>default</name><table><name>J/MNRAS/362/9/table2</name><description>Properties of the 2712 SDSS radio galaxies</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>IDPlate</name><description>Plate identification number (from SDSS)</description><ucd>obs.field</ucd><dataType xsi:type="vs:VOTableType">int</dataType></column><column><name>JD</name><description>Julian Date of observation (from SDSS)</description><unit>d</unit><ucd>time.epoch</ucd><dataType xsi:type="vs:VOTableType">int</dataType></column><column><name>IDFibre</name><description>Fibre identification number (from SDSS)</description><ucd>meta.note</ucd><dataType xsi:type="vs:VOTableType">int</dataType></column><column><name>RAJ2000</name><description>Right ascension in decimal degrees (J2000)</description><unit>deg</unit><ucd>pos.eq.ra;meta.main</ucd></column><column><name>DEJ2000</name><description>Declination in decimal degrees (J2000)</description><unit>deg</unit><ucd>pos.eq.dec;meta.main</ucd></column><column><name>z</name><description>Redshift</description><ucd>src.redshift</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>SNVSS</name><description>NVSS (&lt;VIII/65&gt;) 1.4GHz integrated flux density of the source</description><unit>Jy</unit><ucd>phot.flux.density;em.radio.750-1500MHz</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>Cl</name><description>Radio class (1)</description><ucd>meta.code.class</ucd><dataType xsi:type="vs:VOTableType">int</dataType></column><column><name>SFIRST</name><description>? 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Radio size of the central FIRST component (2)</description><unit>arcsec</unit><ucd>phys.angSize</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>Type</name><description>Classification of the source</description><ucd>src.class</ucd><dataType xsi:type="vs:VOTableType" arraysize="14*">char</dataType></column><column><name>SDSS</name><description>Show SDSS data</description><ucd>meta.ref.url</ucd><dataType xsi:type="vs:VOTableType" arraysize="*">char</dataType></column><column><name>NVSS</name><description>Show the NVSS data (Cat. VIII/65)</description><ucd>meta.ref.url</ucd><dataType xsi:type="vs:VOTableType" arraysize="*">char</dataType></column><column><name>FIRST</name><description>Show the FIRST data (Cat. VIII/71)</description><ucd>meta.ref.url</ucd><dataType xsi:type="vs:VOTableType" arraysize="*">char</dataType></column></table></schema></tableset></ri:Resource>