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<ri:Resource created="2012-05-18T15:11:51Z" 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>H{alpha} emitters at z=2.23</title><shortName>J/MNRAS/416/2041</shortName><identifier>ivo://CDS.VizieR/J/MNRAS/416/2041</identifier><altIdentifier>doi:10.26093/cds/vizier.74162041</altIdentifier><curation><publisher ivo-id="ivo://CDS">CDS</publisher><creator><name>Matsuda Y.</name></creator><creator><name>Smail I.</name></creator><creator><name>Geach J.E.</name></creator><creator><name>Best P.N.</name></creator><creator><name>Sobral D.</name></creator><creator><name>Tanaka I.,Nakata F.</name></creator><creator><name>Ohta K.</name></creator><creator><name>Kurk J.</name></creator><creator><name>Iwata I.</name></creator><creator><name>Bielby R.</name></creator><creator><name>Wardlow J.L.</name></creator><creator><name>Bower R.G.,Ivison R.J.</name></creator><creator><name>Kodama T.</name></creator><creator><name>Yamada T.</name></creator><creator><name>Mawatari K.</name></creator><creator><name>Casali M.</name></creator><date role="Updated">2024-07-15T20:16:35Z</date><date role="Created">2012-05-18T15:11:51Z</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>visible-astronomy</subject><subject>h-alpha-photometry</subject><subject>line-intensities</subject><description>We present the results of a narrow-band (H_2_S1, {lambda}_c_=2.121um, {delta}{lambda}=0.021um) imaging search with Wide Field Camera/United Kingdom Infrared Telescope for H{alpha} emitters (HAEs) around several potential signposts of rare (~10^-7^-10^-8^ comoving Mpc^-3^) overdense regions at z=2.23: an overdensity of quasi-stellar objects [QSOs; 2dF QSO Redshift Survey (2QZ) cluster], a powerful, high-redshift radio galaxy (HzRG) and a concentration of submillimetre galaxies (SMGs) and optically faint radio galaxies (OFRGs). In total, we detect 137 narrow-band emitter candidates down to emission-line fluxes of 0.5-1x10^-16^erg/s/cm^2^, across a total area of 0.56deg^2^ (2.1x10^5^ comoving Mpc^3^ at z=2.23) in these fields.</description><source format="bibcode">2011MNRAS.416.2041M</source><referenceURL>https://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/416/2041</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></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/416/2041</accessURL><mirrorURL title="VizieR at IUCAA: Pune, India">https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/416/2041</mirrorURL><mirrorURL title="VizieR at SAAO: SAAO, South Africa">http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/416/2041</mirrorURL></interface></capability><capability><interface xsi:type="vs:ParamHTTP"><accessURL use="base">https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/416/2041</accessURL><mirrorURL title="VizieR at IUCAA: Pune, India">https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/416/2041</mirrorURL><mirrorURL title="VizieR at SAAO: SAAO, South Africa">http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/416/2041</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/MNRAS/416/2041/hae (Properties of candidate H{alpha}-emitters at z=2.23)</description><interface xsi:type="vs:ParamHTTP" role="std"><accessURL use="base">https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/416/2041/hae?</accessURL><mirrorURL title="VizieR at IUCAA: Pune, India">https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/416/2041/hae?</mirrorURL><mirrorURL title="VizieR at SAAO: SAAO, South Africa">http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/416/2041/hae?</mirrorURL><queryType>GET</queryType><resultType>text/xml+votable</resultType></interface><maxSR>180.0</maxSR><maxRecords>50000</maxRecords><verbosity>true</verbosity><testQuery><ra>151.05375</ra><dec>0.2160833</dec><sr>0.005555555555555556</sr></testQuery></capability><coverage><spatial>6/10843-10844 10846 17822-17823 17844-17845 27237 27239 27248 27250</spatial><spectral>9.459244397180309e-18 9.459244397180309e-18</spectral><footprint ivo-id="ivo://ivoa.net/std/moc">https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/416/2041?format=ascii</footprint><waveband>Optical</waveband></coverage><tableset><schema><name>default</name><table><name>J/MNRAS/416/2041/hae</name><description>Properties of candidate H{alpha}-emitters at z=2.23</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>ID</name><description>Source name (1)</description><ucd>meta.id;meta.main</ucd><dataType xsi:type="vs:VOTableType" arraysize="14*">char</dataType></column><column><name>RAJ2000</name><description>Right ascension (J2000)</description><ucd>pos.eq.ra;meta.main</ucd></column><column><name>DEJ2000</name><description>Declination (J2000)</description><ucd>pos.eq.dec;meta.main</ucd></column><column><name>H2S1</name><description>Magnitude in H_2_S1 filter (2.121+/-0.021um)</description><unit>mag</unit><ucd>phot.flux;em.line.Halpha</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>l_Kmag</name><description>Limit flag on Kmag</description><ucd>meta.code.error</ucd><dataType xsi:type="vs:VOTableType" arraysize="1*">char</dataType></column><column><name>Kmag</name><description>K magnitude</description><unit>mag</unit><ucd>phot.mag;em.IR.K</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>l_sigma</name><description>Limit flag on sigma</description><ucd>meta.code.error</ucd><dataType xsi:type="vs:VOTableType" arraysize="1*">char</dataType></column><column><name>sigma</name><description>Ratio between the H2S1 excess and the uncertainty in the K-H2S1 colour</description><ucd>stat.error;phot.color.excess;arith.ratio</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>l_EWobs</name><description>Limit flag on EWobs</description><ucd>meta.code.error</ucd><dataType xsi:type="vs:VOTableType" arraysize="1*">char</dataType></column><column><name>EWobs</name><description>Observed H{alpha} equivalent width</description><unit>0.1nm</unit><ucd>spect.line.eqWidth;em.line.Halpha</ucd><dataType xsi:type="vs:VOTableType">int</dataType></column><column><name>logFHa</name><description>H{alpha} flux corrected for 33% [NII] contribution to the measured flux</description><unit>log(mW.cm**-2)</unit><ucd>phot.flux;em.line.Halpha</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>logLHa</name><description>H{alpha} luminosity</description><unit>log(1e-07W)</unit><ucd>phys.luminosity;em.line.Halpha</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>SFRHa</name><description>The attenuation-uncorrected SFR derived from the H{alpha} luminosity</description><unit>solMass/yr</unit><ucd>phys.SFR</ucd><dataType xsi:type="vs:VOTableType">int</dataType></column><column><name>M</name><description>The stellar mass estimated from the K-band magnitude by assuming a constant mass-to-light ratio from Geach at al. 2008MNRAS.388.1473G</description><unit>solMass</unit><ucd>phys.mass</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>Class</name><description>Class of object as BzK, QSO, HzRG, NLAGN (2)</description><ucd>meta.code.class</ucd><dataType xsi:type="vs:VOTableType" arraysize="5*">char</dataType></column><column><name>l_M</name><description>Limit flag on M</description><ucd>meta.code.error</ucd><dataType xsi:type="vs:VOTableType" arraysize="1*">char</dataType></column></table></schema></tableset></ri:Resource>