J/A+A/319/18ivo://CDS.VizieR/J/A+A/319/18doi:10.26093/cds/vizier.33190018CDSRadecke H.-D.1997-12-09T16:51:48Z1997-12-09T17:51:44ZCDS support team

CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France

cds-question@unistra.frx-ray-sourcesseyfert-galaxiesArchived PSPC observations of 26 Seyfert galaxies have been analyzed for bright X-ray sources out to the full extent of the field (< about 50'). Of all Seyferts known this represents a sample 88% complete to B_T_=10mag, 74% complete to 11mag and 50% complete to 12mag. Using the same reduction algorithm, 14 fields centered on stars at high galactic latitudes have been used as control fields. Excluding the two brightest Seyferts, a subset of 24 Seyferts with corrected apparent magnitude between 8.04<B^o,i^_T_<12.90mag show a minimum excess of 46 bright X-ray sources generally distributed between 10 and 25' from the target galaxy. The significances of association of these sources with the Seyferts in the median brightness range are as high as 7.4-sigma.1997A&A...319...18Rhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/319/18CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/319/18https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/319/18http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/319/18https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/319/18https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/319/18http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/319/18GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/319/18/appena (Detected Sources with count rates above 5.0*10^-3^cts/s)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/319/18/appena?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/319/18/appena?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/319/18/appena?GETtext/xml+votable180.050000true40.50120830.57763890.005555555555555556ROSAThttps://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/319/18?format=asciiX-raydefaultJ/A+A/319/18/table1Fields analyzedrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintFieldObject name (Seyfert galaxies and reference stars) used in the analysismeta.id;meta.maincharExpROSAT PSPC exposure timekstime.duration;obs.exposurefloatGLATGalactic latitude of the target objectdegpos.galactic.latintBmag? Brightness of the target object (Apparent blue magnitude, corrected for galactic and internal absorption)magphot.mag;em.opt.Bfloat1/2D25? Semi-apparent major isophotal diameter at surface brightness level 25.0 B-mag/arcsec^2^arcminphys.angSize;srcfloatClassSeyfert classificationsrc.classcharMTypeSeyfert typemeta.notecharJ/A+A/319/18/appenaDetected Sources with count rates above 5.0*10^-3^cts/sFieldField centered on the object mentionedobs.fieldcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeqObject numbermeta.id.part;meta.mainintRA2000Right ascension (2000) of the sources detectedpos.eq.ra;meta.mainDE2000Declination signpos.eq.dec;meta.mainnullablePosOffOffaxis position of the detected sourcesarcmininstr.offsetfloatCountRateCount rate of the detected sourcesct/ksphot.count;em.X-rayfloatCF[CF] CF for control fieldmeta.codechar