J/ApJS/80/531ivo://CDS.VizieR/J/ApJS/80/531doi:10.26093/cds/vizier.20800531CDSFabbiano G.Kim D.-W.Trinchieri G.1999-04-17T11:49:43Z1999-04-17T11:48:46ZCDS support team

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

cds-question@unistra.frx-ray-sourcesgalaxiescatalogsAn X-ray catalog and atlas of galaxies observed with the Einstein Observatory imaging instruments (IPC and HRI) are presented. The catalog comprises 493 galaxies, including targets of pointed observations, and RSA or RC2 galaxies serendipitously included in Einstein fields. A total of 450 of these galaxies were imaged well within the instrumental fields, resulting in 238 detections and 2123 sigma upper limits. The other galaxies were either at the edge of the visible field of view or confused with other X-ray sources. For these a rough measure of their X-ray emission is also given. The atlas shows X-ray contour maps of detected galaxies superposed on optical photographs and gives azimuthally averaged surface brightness profiles of galaxies detected with a high signal-to-noise ratio.1992ApJS...80..531Fhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/80/531CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/80/531https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/80/531http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/80/531https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJS/80/531https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJS/80/531http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJS/80/531GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJS/80/531/gxatlas (Observation Info for the EINSTEIN Galaxy Catalog)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/80/531/gxatlas?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/80/531/gxatlas?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/80/531/gxatlas?GETtext/xml+votable180.050000true56.700468.095250.005555555555555556Cone search capability for table J/ApJS/80/531/gxfluxes (Flux Density Info for the EINSTEIN Galaxy Catalog)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/80/531/gxfluxes?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/80/531/gxfluxes?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/80/531/gxfluxes?GETtext/xml+votable180.050000true56.700468.095250.005555555555555556Einsteinhttps://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJS/80/531?format=asciiX-raydefaultJ/ApJS/80/531/gxatlasObservation Info for the EINSTEIN Galaxy CatalogrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameName of the object (NGC, IC, UGC number)meta.id;meta.maincharprimarynote[ ab] Note: 'a' if AGN or 'b' if Virgometa.notecharRAB1950Right Ascension (B1950) (hour)pos.eq.ra;meta.mainDEB1950Declination (B1950) (deg)pos.eq.dec;meta.mainnHForeground column of HI (1)1e+20cm**-2phys.columnDensityfloatinst[IH] Instrument used (2)meta.id;instrcharSeqnoObservation sequence numbermeta.idintobsYear of start of observation minus 1900time.epochlivetimeTime of observation (3)stime.duration;obs.exposurefloatoffaxisDistance to field center (4)arcminpos.angDistancefloatJ/ApJS/80/531/gxfluxesFlux Density Info for the EINSTEIN Galaxy Cataloge_counts? Error on count total (7)ctstat.errorfloatnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameName of the object (NGC, IC, UGC number)meta.id;meta.maincharprimarynote[ a-e] Flag indicating ending note (1)meta.notecharRAB1950Right Ascension (B1950) (hour)pos.eq.ra;meta.mainDEB1950Declination (B1950) (deg)pos.eq.dec;meta.maininstr[IH] Instrument used (2)meta.id;instrcharseqnoObservation sequence number (3)meta.idintBmagApparent B magnitude (4)magphot.mag;em.opt.BfloattypeT-type following RC2 (5)src.morph.typeintRA_X? Right Ascension (B1950) (hour) (6)pos.eq.ranullableDE_X? Declination (B1950) (deg)pos.eq.decnullableradius? Size of aperture for flux extractionarcsecphys.angSize;srcintnullablel_countsFlagged '<' if counts is an upper limit (7)meta.code.errorcharcounts? Total counts from EINSTEIN observation (7)ctphot.count;em.X-raydoublenullablel_crate[ <] '<' if count rate is upper limit (8)meta.code.errorcharcrate? Count-rate from EINSTEIN observation (8)ct/ksphot.count;em.X-rayfloatnullablel_FluxX[ <] '<' if flux is an upper limit (9)meta.code.errorcharFluxX? X-ray flux (9)1e-16W.m**-2phot.flux;em.X-rayfloatnullabledistAssumed distance in Megaparsecs (10)Mpcpos.distancefloatl_logLx[ <] '<' if luminosity is upper limit (11)meta.code.errorcharlogLx? Log of the X-ray luminosity (11)log(1e-07W)phys.luminosity;em.X-rayfloatnullable