<?xml-stylesheet href='/static/xsl/oai.xsl' type='text/xsl'?>
<ri:Resource created="2012-06-19T11:52:30Z" 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>SDSS search for binary AGN</title><shortName>J/ApJ/716/866</shortName><identifier>ivo://CDS.VizieR/J/ApJ/716/866</identifier><altIdentifier>doi:10.26093/cds/vizier.17160866</altIdentifier><curation><publisher ivo-id="ivo://CDS">CDS</publisher><creator><name>Smith K.L.</name></creator><creator><name>Shields G.A.</name></creator><creator><name>Bonning E.W.</name></creator><creator><name>McMullen C.C.</name></creator><creator><name>Rosario D.J.,Salviander S.</name></creator><date role="Updated">2017-10-13T15:41:07Z</date><date role="Created">2012-06-19T11:52:30Z</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>redshifted</subject><subject>radio-sources</subject><subject>spectroscopy</subject><description>We present active galactic nuclei (AGNs) from the Sloan Digital Sky Survey (SDSS) having double-peaked profiles of [OIII]5007,4959 and other narrow emission lines, motivated by the prospect of finding candidate binary AGNs. These objects were identified by means of a visual examination of 21592 quasars at z&lt;0.7 in SDSS Data Release 7 (DR7). Of the spectra with adequate signal-to-noise, 148 spectra exhibit a double-peaked [OIII] profile. Of these, 86 are Type 1 AGNs and 62 are Type 2 AGNs. Only two give the appearance of possibly being optically resolved double AGNs in the SDSS images, but many show close companions or signs of recent interaction. Radio-detected quasars are three times more likely to exhibit a double-peaked [OIII] profile than quasars with no detected radio flux, suggesting a role for jet interactions in producing the double-peaked profiles. Of the 66 broad-line (Type 1) AGNs that are undetected in the FIRST survey, 0.9% show double-peaked [OIII] profiles.</description><source format="bibcode">2010ApJ...716..866S</source><referenceURL>https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/716/866</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/260">VII/260 : The SDSS-DR7 quasar catalog (Schneider+, 2010)</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/A+A/510/A56">J/A+A/510/A56 : zCOSMOS type-2 AGN (Bongiorno, 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/693/1554">J/ApJ/693/1554 : Double QSOs: merger scenarios (Foreman+, 2009)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/ApJ/614/91">J/ApJ/614/91 : Black hole mass and accretion rate of AGNs (Wu+, 2004)</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/716/866</accessURL><mirrorURL title="VizieR at IUCAA: Pune, India">https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/716/866</mirrorURL><mirrorURL title="VizieR at SAAO: SAAO, South Africa">http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/716/866</mirrorURL></interface></capability><capability><interface xsi:type="vs:ParamHTTP"><accessURL use="base">https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/716/866</accessURL><mirrorURL title="VizieR at IUCAA: Pune, India">https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/716/866</mirrorURL><mirrorURL title="VizieR at SAAO: SAAO, South Africa">http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/716/866</mirrorURL><queryType>GET</queryType><resultType>text/xml+votable</resultType></interface></capability><capability standardID="ivo://ivoa.net/std/TAP#aux"><interface xsi:type="vs:ParamHTTP" role="std"><accessURL use="base">https://tapvizier.cds.unistra.fr/TAPVizieR/tap</accessURL></interface></capability><capability xsi:type="cs:ConeSearch" standardID="ivo://ivoa.net/std/ConeSearch"><description>Cone search capability for table J/ApJ/716/866/table1 (Double-peaked AGNs)</description><interface xsi:type="vs:ParamHTTP" role="std"><accessURL use="base">https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/716/866/table1?</accessURL><mirrorURL title="VizieR at IUCAA: Pune, India">https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/716/866/table1?</mirrorURL><mirrorURL title="VizieR at SAAO: SAAO, South Africa">http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/716/866/table1?</mirrorURL><queryType>GET</queryType><resultType>text/xml+votable</resultType></interface><maxSR>180.0</maxSR><maxRecords>50000</maxRecords><verbosity>true</verbosity><testQuery><ra>19.51225</ra><dec>-8.4464444</dec><sr>0.005555555555555556</sr></testQuery></capability><coverage><spatial>6/4097 4195 4234 4295 4307 4366 4389 4447 4470 4479 4501 4525 4574 4974 4998 5181 5230 5259 5314 5322 5363 5388 5514 5580 5588 5615 5623 5697 6106 6107 6128 6392 6453 6560 6593 6631 6640 7243 7265 7287 7496 8261 8268 8312 8346 8385 8386 8387 8449 8458 8460 8543 8596 8612 8613 8632 8642 8659 8751 8781 8797 8895 8929 8981 8996 9027 9078 9083 9186 9214 9281 9473 9764 9881 9949 10213 10242 10243 10282 10362 10398 10544 10566 10778 10779 10803 10888 10940 11042 11148 11149 11303 11354 11370 11372 11502 11512 11807 11815 17497 17566 18405 19114 22003 25915 25919 25953 26056 26057 26164 26250 26257 26309 26379 26417 26448 27002 27077 27111 27302 27370 27424 27669 27710 27767 27879 27884 27986 28126 28167 28465 28477 28536 28585 28612 28661 31414 31547 31631 31634 31663 31677 31727 32489 32672 32680 32683</spatial><spectral>9.932213363424795e-25 9.932213363424795e-25</spectral><footprint ivo-id="ivo://ivoa.net/std/moc">https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/716/866?format=ascii</footprint><waveband>Optical</waveband><waveband>Radio</waveband></coverage><tableset><schema><name>default</name><table><name>J/ApJ/716/866/table1</name><description>Double-peaked AGNs</description><column><name>Type</name><description>[1/2] AGN type</description><ucd>src.class</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><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>SDSS</name><description>SDSS-DR7 name (JHHMMSS.ss+DDMMSS.s)</description><ucd>meta.id;meta.main</ucd><dataType xsi:type="vs:VOTableType" arraysize="19*">char</dataType><flag>primary</flag></column><column><name>f_SDSS</name><description>[*] *: image available in Figure 3 of the paper</description><ucd>meta.code</ucd><dataType xsi:type="vs:VOTableType" arraysize="1*">char</dataType></column><column><name>F</name><description>Simbad column added by the CDS</description><ucd>meta.ref.url</ucd><dataType xsi:type="vs:VOTableType" arraysize="1*">char</dataType></column><column><name>z</name><description>SDSS-DR7 redshift</description><ucd>src.redshift</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>Vel</name><description>Rest-frame velocity separation of the two peaks of [OIII]5007</description><unit>km/s</unit><ucd>phys.veloc;arith.diff</ucd><dataType xsi:type="vs:VOTableType">int</dataType></column><column><name>logL</name><description>Optical continuum luminosity from the SDSS spectrum log({nu}L_{nu}_)</description><unit>log(1e-07W)</unit><ucd>phys.luminosity;em.opt</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>Q</name><description>[m/g] Quality flag of the double peak (g=good or m=marginal) (1)</description><ucd>meta.code.qual</ucd><dataType xsi:type="vs:VOTableType" arraysize="1*">char</dataType></column><column><name>zr</name><description>Redshift of the red peak of {lambda}5007</description><ucd>src.redshift</ucd><dataType xsi:type="vs:VOTableType">double</dataType></column><column><name>zh</name><description>? Host galaxy redshift</description><ucd>src.redshift</ucd><dataType xsi:type="vs:VOTableType">double</dataType><flag>nullable</flag></column><column><name>DR7</name><description>Cross-match with SDSS-DR7 photometric and quasar catalogs within 1.5"</description><ucd>meta.ref.url</ucd><dataType xsi:type="vs:VOTableType">int</dataType><flag>nullable</flag></column><column><name>Sloan</name><description>Display the SDSS data for this AGN</description><ucd>meta.ref.url</ucd><dataType xsi:type="vs:VOTableType" arraysize="*">char</dataType></column><column><name>Simbad</name><description>Simbad column added by the CDS</description><ucd>meta.ref</ucd><dataType xsi:type="vs:VOTableType" arraysize="*">char</dataType></column><column><name>NED</name><description>Simbad column added by the CDS</description><ucd>meta.ref</ucd><dataType xsi:type="vs:VOTableType" arraysize="*">char</dataType></column><column><name>_RA</name><description>Positions from SDSS name (right ascension part)</description><unit>deg</unit><ucd>pos.eq.ra;meta.main</ucd></column><column><name>_DE</name><description>Positions from SDSS name (declination part)</description><unit>deg</unit><ucd>pos.eq.dec;meta.main</ucd></column></table><table><name>J/ApJ/716/866/table2</name><description>Radio flux and luminosity</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>SDSS</name><description>SDSS-DR7 name (JHHMMSS.ss+DDMMSS.s)</description><ucd>meta.id;meta.main</ucd><dataType xsi:type="vs:VOTableType" arraysize="19*">char</dataType></column><column><name>z</name><description>SDSS-DR7 redshift</description><ucd>src.redshift</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>Snu</name><description>Observed 20cm flux density from FIRST</description><unit>mJy</unit><ucd>phot.flux.density;em.radio.750-1500MHz</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>logLnu</name><description>Source specific luminosity at 6cm rest wavelength (assuming L{nu}{propto}{nu}^-0.7^)</description><unit>log(1e-07W.Hz**-1)</unit><ucd>phys.luminosity</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>logR</name><description>Radio loudness parameter R (Kellermann et al. 1989AJ.....98.1195K)</description><ucd>phys.luminosity;arith.ratio</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>Type</name><description>[1/2] AGN type</description><ucd>src.class</ucd><dataType xsi:type="vs:VOTableType">int</dataType></column></table><table><name>J/ApJ/716/866/table3</name><description>{lambda}5007 component fluxes</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>SDSS</name><description>SDSS-DR7 name (JHHMMSS.ss+DDMMSS.s)</description><ucd>meta.id;meta.main</ucd><dataType xsi:type="vs:VOTableType" arraysize="19*">char</dataType></column><column><name>Fr</name><description>Flux of the red component of the 5007{AA} emission line (in 10^-17^erg/cm^2^/s)</description><unit>1e-20W.m**-2</unit><ucd>phot.flux;em.opt.R</ucd><dataType xsi:type="vs:VOTableType">int</dataType></column><column><name>Fb</name><description>Flux of the blue component of the 5007{AA} emission line (in 10^-17^erg/cm^2^/s)</description><unit>1e-20W.m**-2</unit><ucd>phot.flux;em.opt.B</ucd><dataType xsi:type="vs:VOTableType">int</dataType></column></table></schema></tableset></ri:Resource>