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<ri:Resource created="2003-01-21T11:41:42Z" 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>RIXOS source catalogue</title><shortName>J/MNRAS/311/456</shortName><identifier>ivo://CDS.VizieR/J/MNRAS/311/456</identifier><altIdentifier>doi:10.26093/cds/vizier.73110456</altIdentifier><curation><publisher ivo-id="ivo://CDS">CDS</publisher><creator><name>Mason K.O.</name></creator><creator><name>Carrera F.J.</name></creator><creator><name>Hasinger G.</name></creator><creator><name>Andernach H.,Aragon-Salamanca A.</name></creator><creator><name>Barcons X.</name></creator><creator><name>Bower R.</name></creator><creator><name>Brandt W.N.,Branduardi-Raymont G.</name></creator><creator><name>Burgos-Martin J.</name></creator><creator><name>Cabrera-Guerra F.</name></creator><creator><name>Carballo R.,Castander F.</name></creator><creator><name>Ellis R.S.</name></creator><creator><name>Gonzalez-Serrano J.I.</name></creator><creator><name>Martinez-Gonzalez E.,Martin-Mirones J.M.</name></creator><creator><name>McMahon R.G.</name></creator><creator><name>Mittaz J.P.D.</name></creator><creator><name>Nicholson K.L.,Page M.J.</name></creator><creator><name>Perez-Fournon I.</name></creator><creator><name>Puchnarewicz E.M.</name></creator><creator><name>Romero-Colmenero E.,Schwope A.D.</name></creator><creator><name>Vila B.</name></creator><creator><name>Watson M.G.</name></creator><creator><name>Wonnacott D.</name></creator><date role="Updated">2024-06-26T20:16:18Z</date><date role="Created">2003-01-21T11:41:42Z</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>x-ray-sources</subject><subject>surveys</subject><description>We describe the ROSAT International X-ray/Optical Survey (RIXOS), a medium-sensitivity survey and optical identification of X-ray sources discovered in ROSAT high Galactic latitude fields (|b|&gt;280) and observed with the Position Sensitive Proportional Counter (PSPC) detector. 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Should Not be used for identification.</description><ucd>meta.record</ucd><dataType xsi:type="vs:VOTableType">int</dataType></column><column><name>RXJ</name><description>Source designation, derived from the J2000 coordinates of the X-ray centroid</description><ucd>meta.id;meta.main</ucd><dataType xsi:type="vs:VOTableType" arraysize="15*">char</dataType><flag>primary</flag></column><column><name>r90</name><description>? X-ray 90% confidence positional radius</description><unit>arcsec</unit><ucd>stat.error</ucd><dataType xsi:type="vs:VOTableType">int</dataType><flag>nullable</flag></column><column><name>RAJ2000</name><description>Right ascension (J2000) (1)</description><ucd>pos.eq.ra;meta.main</ucd></column><column><name>DEJ2000</name><description>Declination (J2000) (1)</description><ucd>pos.eq.dec;meta.main</ucd></column><column><name>SX</name><description>? X-ray flux (0.5-2.0 keV) derived from the measured count rate assuming a spectral slope of {alpha}=-1. 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Tolal X-ray counts based on maximum likelihood fits</description><unit>ct</unit><ucd>phot.count;em.X-ray</ucd><dataType xsi:type="vs:VOTableType">int</dataType><flag>nullable</flag></column><column><name>SI</name><description>? X-ray spectral index (3)</description><ucd>spect.index;em.X-ray</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>e_SI</name><description>? rms uncertainty on SI</description><ucd>stat.error</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>n_Mag</name><description>Magnitude considered (4)</description><ucd>meta.note</ucd><dataType xsi:type="vs:VOTableType" arraysize="1*">char</dataType></column><column><name>Mag</name><description>? 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FWHM of the emission line followed by "*", rounded down to the nearest integer (7)</description><unit>1000km/s</unit><ucd>spect.line.width</ucd><dataType xsi:type="vs:VOTableType">int</dataType><flag>nullable</flag></column><column><name>u_FWHM</name><description>rms uncertainty on FWHM</description><ucd>meta.code.error;phys.angSize</ucd><dataType xsi:type="vs:VOTableType" arraysize="1*">char</dataType></column><column><name>Note</name><description>[NIC ] Note (8)</description><ucd>meta.note</ucd><dataType xsi:type="vs:VOTableType" arraysize="3*">char</dataType></column><column><name>RIXOS</name><description>RIXOS Field (ID) and Source ID (SID) for cross reference to other RIXOS papers</description><ucd>meta.id.cross</ucd><dataType xsi:type="vs:VOTableType" arraysize="7*">char</dataType></column></table><table><name>J/MNRAS/311/456/table1</name><description>ROSAT fields used in the RIXOS survey</description><column><name>Ntot</name><description>Total number of RIXOS sources in the field</description><ucd>meta.number</ucd><dataType xsi:type="vs:VOTableType">int</dataType></column><column><name>Nid</name><description>Number of secure identifications in field</description><ucd>meta.id;obs.field</ucd><dataType xsi:type="vs:VOTableType">int</dataType></column><column><name>Np</name><description>Number of probable identifications</description><ucd>meta.number</ucd><dataType xsi:type="vs:VOTableType">int</dataType></column><column><name>Target</name><description>Name of the ROSAT target</description><ucd>meta.id;meta.main</ucd><dataType xsi:type="vs:VOTableType" arraysize="21*">char</dataType></column><column><name>recno</name><description>Record number assigned by the VizieR team. 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