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<ri:Resource created="2011-10-24T12:59:12Z" 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>Obscured active galaxies</title><shortName>J/ApJ/702/441</shortName><identifier>ivo://CDS.VizieR/J/ApJ/702/441</identifier><altIdentifier>doi:10.26093/cds/vizier.17020441</altIdentifier><curation><publisher ivo-id="ivo://CDS">CDS</publisher><creator><name>Greene J.E.</name></creator><creator><name>Zakamska N.L.</name></creator><creator><name>Liu X.</name></creator><creator><name>Barth A.J.</name></creator><creator><name>Ho L.C.</name></creator><date role="Updated">2017-07-03T14:25:29Z</date><date role="Created">2011-10-24T12:59:12Z</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>active-galactic-nuclei</subject><subject>galaxies</subject><subject>spectroscopy</subject><subject>absolute-magnitude</subject><description>Obscured or narrow-line active galaxies offer an unobstructed view of the quasar environment in the presence of a luminous and vigorously accreting black hole (BH). We exploit the large new sample of optically selected luminous narrow-line active galaxies from the Sloan Digital Sky Survey at redshifts 0.1&lt;z&lt;0.45, in conjunction with follow-up observations with the Low Dispersion Survey Spectrograph (LDSS3) at Magellan, to study the distributions of BH mass and host galaxy properties in these extreme objects.</description><source format="bibcode">2009ApJ...702..441G</source><referenceURL>https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/702/441</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/MNRAS/399/1206">J/MNRAS/399/1206 : SWIRE/SDSS quasars. II. Type 2 AGN (Hatziminaoglou+, 2009)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/AJ/136/2373">J/AJ/136/2373 : Type 2 quasars from SDSS (Reyes+, 2008)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/AJ/131/84">J/AJ/131/84 : AGNs and host galaxies information (Vanden Berk+, 2006)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/AJ/128/1002">J/AJ/128/1002 : SDSS candidate type II quasars. 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