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<ri:Resource created="2017-06-23T10:25:29Z" status="active" updated="2025-05-19T09:50:00Z" version="1.2" 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/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>Recombination coefficients for O II lines - SSB2</title><shortName>VI/150</shortName><identifier>ivo://CDS.VizieR/VI/150</identifier><curation><publisher ivo-id="ivo://CDS">CDS</publisher><creator><name>Storey P.J.</name></creator><creator><name>Sochi T.</name></creator><creator><name>Bastin R.</name></creator><date role="Updated">2017-06-23T09:36:13Z</date><date role="Created">2017-06-23T10:25:29Z</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>atomic-physics</subject><description>We present the results of a calculation of recombination coefficientscients for O^2 + ^+e^-^ using an intermediate coupling treatment that fully accounts for the dependence of the distribution of population among the ground levels of O^2+^ on electron density and temperature. The calculation is extended down to low electron temperatures where dielectronic recombination arising from Rydberg states converging on the O^2+^ ground levels is an important process. The data, which consist of emission coefficientscients for 8889 recombination lines and recombination coefficientscients for the ground and metastable states of O^+^ are in Cases A, B and C, and are organised as a function of the electron temperature and number density, as well as wavelength. An interactive fortran 77 data server is also provided as an accessory for mining the line emission coefficients and obtaining Lagrange interpolated values for any choice of the two variables between the explicitly provided values for any set of wavelengths. Some illustrations of the application of the new data to nebular observations are also provided.</description><source format="bibcode">2017MNRAS.470..379S</source><referenceURL>https://cdsarc.cds.unistra.fr/viz-bin/cat/VI/150</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>related-to</relationshipType><relatedResource ivo-id="ivo://CDS.VizieR/VI/141">VI/141 : Computed List of Collision Strengths for nebular [OIII] Optical</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/VI/144">VI/144 : Computed List of Effective Collision Strengths for nebular [OIII] -</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=VI/150</accessURL><mirrorURL title="VizieR at IUCAA: Pune, India">https://vizier.iucaa.in/viz-bin/VizieR-2?-source=VI/150</mirrorURL><mirrorURL title="VizieR at SAAO: SAAO, South Africa">http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=VI/150</mirrorURL></interface></capability><capability><interface xsi:type="vs:ParamHTTP"><accessURL use="base">https://vizier.cds.unistra.fr/viz-bin/votable?-source=VI/150</accessURL><mirrorURL title="VizieR at IUCAA: Pune, India">https://vizier.iucaa.in/viz-bin/votable?-source=VI/150</mirrorURL><mirrorURL title="VizieR at SAAO: SAAO, South Africa">http://vizieridia.saao.ac.za/viz-bin/votable?-source=VI/150</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><coverage><footprint ivo-id="ivo://ivoa.net/std/moc"/></coverage><tableset><schema><name>default</name><table><name>VI/150/list</name><description>List of repertories</description><column><name>Rep</name><description>Repertory name</description><ucd>meta.id;meta.file</ucd><dataType xsi:type="vs:VOTableType" arraysize="10*">char</dataType></column><column><name>recno</name><description>Record number assigned by the VizieR team. 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