J/A+AS/142/41ivo://CDS.VizieR/J/A+AS/142/41CDSHaberl F.Filipovic M.D.Pietsch W.Kahabka P.2000-05-15T13:06:57Z2000-05-15T13:06:49ZCDS support team

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

cds-question@unistra.frx-ray-sourcesmagellanic-cloudsWe present a catalogue of 517 discrete X-ray sources in a 6{deg}x6{deg} field covering the Small Magellanic Cloud (SMC). The catalogue was derived from the pointed ROSAT PSPC observations performed between October 1991 and May 1994 and is complementary to the Large Magellanic Cloud (LMC) catalogue published by Haberl & Pietsch (1999, Cat. <J/A+AS/139/277>). We followed the same identification scheme and used, among other information, X-ray hardness ratios and spatial extent to classify unknown sources as candidates for active galactic nuclei (AGN), foreground stars, supernova remnants (SNRs), supersoft sources (SSSs) and X-ray binaries. For 158 sources a likely source type is given, from which 46 sources are suggested as background AGN (including candidates resulting from a comparison of X-ray and radio images). Nearly all of the X-ray binaries known in the SMC were detected in ROSAT PSPC observations; most of them with luminosities below 10^36^erg/s suggesting that the fraction of high luminosity X-ray binary systems in the Magellanic Clouds (MCs) is not significantly larger than in our galaxy. Seventeen X-ray sources are associated with SNRs found in earlier work and we suggest here two additional extended sources as SNR candidates. Three very soft sources are newly classified as SSSs from which one is identified with the symbiotic star LIN 358 in the SMC.2000A&AS..142...41Hhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+AS/142/41CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+AS/139/277 : LMC X-ray sources ROSAT PSPC catalogue (Haberl+, 1999)J/A+AS/143/391 : ROSAT HRI catalogue of LMC X-ray sources (Sasaki+, 2000)J/A+AS/147/75 : ROSAT HRI catalogue of SMC x-ray sources (Sasaki+, 2000)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+AS/142/41https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+AS/142/41http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+AS/142/41https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+AS/142/41https://vizier.iucaa.in/viz-bin/votable?-source=J/A+AS/142/41http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+AS/142/41GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+AS/142/41/table2 (The catalogue of 517 ROSAT PSPC sources from a 6{deg}x6{deg} field centered on the SMC)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+AS/142/41/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/A+AS/142/41/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+AS/142/41/table2?GETtext/xml+votable180.050000true12.727083-71.1533330.005555555555555556ROSAT5/8323-8324 8326 8329 6/32952-32954 33285-33287 33324-33325 33328 33330https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+AS/142/41?format=asciiX-raydefaultJ/A+AS/142/41/table2The catalogue of 517 ROSAT PSPC sources from a 6{deg}x6{deg} field centered on the SMCHR2? Hardness ratio 2 (1)floatnullablee_HR2? Error on HR2floatnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.intIDSource numberintLILikelihood of existencefloatVignVignetting corrected net exposure timesintRA2000Right ascension (2000.0)DE2000Declination (2000.0)r90Statistical 90% confidence error on the X-ray positionarcsecfloatCRPSPC 0.1-2.4 keV count ratect/sdoublee_CRCount rate errorct/sdoubleHR1? Hardness ratio 1 (1)floatnullablee_HR1? Error on HR1floatnullableExtSource extentarcsecfloatLIExtLikelihood for the extentfloatROSATROSAT observation identifier (2)charOff-axisOff-axis anglearcminintDistDistance to detector window support structure or detector rim (in units of FWHM of the instrument resolution at the position of the source in the detector)float[KPF99]Number of nearest source in Kahabka et al., 2000 (Cat. <J/A+AS/136/81>)intRemRemarkschar