J/MNRAS/403/945ivo://CDS.VizieR/J/MNRAS/403/945doi:10.26093/cds/vizier.74030945CDSLandi R.Bassani L.Malizia A.Stephen J.B.Bazzano A.Fiocchi M.,Bird A.J.2024-07-11T20:16:18Z2012-03-23T14:15:23ZCDS support team

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

cds-question@unistra.frx-ray-sourcesgamma-ray-astronomyThe most recent IBIS/ISGRI survey, i.e. the fourth one, lists 723 hard X-ray sources, many still unidentified, i.e. lacking an X-ray counterpart or simply not studied at lower energies, i.e. below 10keV. In order to overcome this lack of X-ray information, we cross-correlated the list of IBIS sources included in the fourth IBIS catalogue with the Swift/X-ray Telescope (XRT) data archive, finding a sample of 20 objects, not yet reported in the literature, for which XRT data could help in the search for the X-ray and hence optical counterpart and/or, for the first time, in the study of the source spectral and variability properties below 10keV. 16 of these objects are new INTEGRAL detections, while four were already listed in the third survey but not yet observed in X-rays.2010MNRAS.403..945Lhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/403/945CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/403/945https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/403/945http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/403/945https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/403/945https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/403/945http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/403/945GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/403/945/table2 (INTEGRAL/IBIS position of the 20 selected sources and locations of the objects detected by XRT, within the 90% and 99% IBIS error circles, with relative counterparts)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/403/945/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/403/945/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/403/945/table2?GETtext/xml+votable180.050000true11.615-40.0870.0055555555555555566/5143 6499 15410 15658 25054 29114 29207 29460 35521 37190 37333 39213 39717 40638 41330 43057 43104 43139 43860 46679https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/403/945?format=asciiGamma-rayX-raydefaultJ/MNRAS/403/945/table2INTEGRAL/IBIS position of the 20 selected sources and locations of the objects detected by XRT, within the 90% and 99% IBIS error circles, with relative counterpartsSourceIBIS sourcemeta.id;meta.maincharprimarySimbadSimbad column added by the CDSmeta.ref.urlcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintn_Source[b] source is located at high Galactic latitude (|b|>10)meta.notecharRAJ2000Source right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Source declination (J2000)pos.eq.dec;meta.maineRadError radius, given at 90% confidence levelarcsecstat.error;phys.angSizefloatSeq? Sequential number of XRT detected object, within the sourcemeta.recordintnullableeCir? Error circle definition (90% or 99%)stat.errorcharRA1? XRT right ascension (J2000)pos.eq.ranullableDE1? XRT declination (J2000)pos.eq.decnullableePos? Error on XRT positionarcsecstat.error;posfloatnullableCR? Count rate in 0.3-10keV bandct/ksphot.count;em.X-rayfloatnullablee_CR? rms uncertainty on CRct/ksstat.errorfloatnullableCtpCounterpart name(s), from NED, HEASARC and SIMBAD (1)meta.idcharIBISDetails from 4th IBIS/ISGRI survey (Bird+ 2010, Cat. J/ApJS/186/1)meta.ref.urlcharJ/MNRAS/403/945/table1Log of the Swift/XRT observations used in this paperrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSourceIBIS sourcemeta.id;meta.maincharIDObservation IDmeta.id;obsDateObservation datetime.epoch;obsnullableExpTime exposurestime.epoch;obs.exposureint