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<ri:Resource created="2013-02-12T11:18:53Z" 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>The [OIII] emission line in SDSS AGNs</title><shortName>J/ApJ/737/71</shortName><identifier>ivo://CDS.VizieR/J/ApJ/737/71</identifier><altIdentifier>doi:10.26093/cds/vizier.17370071</altIdentifier><curation><publisher ivo-id="ivo://CDS">CDS</publisher><creator><name>Zhang K.</name></creator><creator><name>Dong X.-B.</name></creator><creator><name>Wang T.-G.</name></creator><creator><name>Gaskell C.M.</name></creator><date role="Updated">2017-10-12T13:00:46Z</date><date role="Created">2013-02-12T11:18:53Z</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>seyfert-galaxies</subject><subject>quasars</subject><subject>spectroscopy</subject><subject>line-intensities</subject><description>We use homogeneous samples of radio-quiet Seyfert 1 galaxies and QSOs selected from the Sloan Digital Sky Survey to investigate the connection between the velocity shift and the equivalent width (EW) of the [OIII]{lambda}5007 emission line, and their correlations with physical parameters of active galactic nuclei (AGNs). We find a significant and negative correlation between the EW of the core component, EW(core), and the blueshift of either the core (the peak), the wing, or the total profile of [OIII] emission; it is fairly strong for the blueshift of the total profile in particular. However, both quantities (EW and velocity shift) generally have only weak, if any, correlations with fundamental AGN parameters such as the nuclear continuum luminosity at 5100{AA} (L_5100_), black hole mass (M_BH_), and the Eddington ratio (L/L_Edd_); these correlations include the classical Baldwin effect of EW(core), an inverse Baldwin effect of EW(wing), and the relationship between velocity shifts and L/L_Edd_. Our findings suggest that both the large object-to-object variation in the strength of [OIII] emission and the blueshift-EW(core) connection are not governed primarily by fundamental AGN parameters such as L_5100_, M_BH_, and L/L_Edd_. We propose that the interstellar medium conditions of the host galaxies play a major role instead in the diversity of the [OIII] properties in active galaxies. This suggests that the use of [OIII]{lambda}5007 luminosity as a proxy of AGN luminosity does not depend strongly on the above-mentioned fundamental AGN parameters.</description><source format="bibcode">2011ApJ...737...71Z</source><referenceURL>https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/737/71</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/294">II/294 : The SDSS Photometric Catalog, Release 7 (Adelman-McCarthy+, 2009)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/ApJ/708/427">J/ApJ/708/427 : Type 2 AGNs with double-peaked [OIII] lines (Liu+, 2010)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/ApJ/705/L76">J/ApJ/705/L76 : AGNs with double-peaked [OIII] lines (Wang+, 2009)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/ApJ/702/767">J/ApJ/702/767 : CIV and FeK{alpha} Baldwin effects in AGNs (Wu+, 2009)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/AJ/130/381">J/AJ/130/381 : Blueshifted [O III] emission (Boroson+, 2005)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/ApJ/549/155">J/ApJ/549/155 : [OIII] emission in a sample of AGNs (Nagao+, 2001)</relatedResource><relatedResource>http://www.sdss.org/ : SDSS home page</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/ApJ/737/71</accessURL><mirrorURL title="VizieR at IUCAA: Pune, 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