The 54-month Palermo BAT-survey catalogue J/A+A/524/A64 ivo://CDS.VizieR/J/A+A/524/A64 doi:10.26093/cds/vizier.35240064 CDS Cusumano G. La Parola V. Segreto A. Ferrigno C. Maselli A.,Sbarufatti B. Romano P. Chincarini G. Giommi P. Masetti N. Moretti A.,Parisi P. Tagliaferri G. 2026-01-20T12:10:45Z 2010-11-24T08:42:40Z CDS support team CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France cds-question@unistra.fr x-ray-sources surveys active-galactic-nuclei We present the Second Palermo Swift-BAT hard X-ray catalogue obtained by analysing data acquired in the first 54 months of the Swift mission. Using our software dedicated to the analysis of data from coded mask telescopes, we analysed the BAT survey data in three energy bands (15-30keV, 15-70keV, 15-150keV), obtaining a list of 1256 detections above a significance threshold of 4.8 standard deviations. The identification of the source counterparts is pursued using two strategies: the analysis of field observations of soft X-ray instruments and cross-correlation of our catalogue with source databases. The survey covers 50% of the sky to a 15-150keV flux limit of 1.0x10^-11^erg/cm2/s and 9.2x10^-12^erg/cm2/s for |b|<10 and |b|>10, respectively. The Second Palermo Swift-BAT hard X-ray catalogue includes 1079 (~86%) hard X-ray sources with an associated counterpart (26 with a double association and 2 with a triple association) and 177 BAT excesses (~14%) that still lack a counterpart. The distribution of the BAT sources among the different object classes consists of ~19% Galactic sources, ~57% extragalactic sources, and ~10% sources with a counterpart at softer energies whose nature has not yet been determined. About half of the BAT associated sources lack a counterpart in the ROSAT catalogues. This suggests that either moderate or strong absorption may be preventing their detection in the ROSAT energy band. The comparison of our BAT catalogue with the Fermi Large Area Telescope First Source Catalogue identifies 59 BAT/Fermi correspondences: 48 blazars, 3 Seyfert galaxies, 1 interacting galaxy, 3 high mass X-ray binaries, and 4 pulsars/supernova remnants. This small number of correspondences indicates that different populations make the sky shine in these two different energy bands. 2010A&A...524A..64C https://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/524/A64 Catalog Research IsServedBy TAP VizieR generic service IsServedBy Conesearch service related-to J/A+A/510/A48 : Palermo Swift-BAT Hard X-ray Catalogue (Cusumano+, 2010) http://www.ifc.inaf.it/cgi-bin/INAF/pub.cgi?href=activities/bat/index.html : https://cds.unistra.fr/vizier-org/licences_vizier.html https://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/524/A64 https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/524/A64 http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/524/A64 https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/524/A64 https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/524/A64 http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/524/A64 GET text/xml+votable https://tapvizier.cds.unistra.fr/TAPVizieR/tap Cone search capability for table J/A+A/524/A64/m54 (Palermo BAT survey catalogue) https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/524/A64/m54? https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/524/A64/m54? http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/524/A64/m54? 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47971 48022-48023 48034 48292 48394-48395 48491 48610 48614 48676 48798 49001 49042 49115 https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/524/A64?format=ascii X-ray default J/A+A/524/A64/m54 Palermo BAT survey catalogue recno Record number assigned by the VizieR team. Should Not be used for identification. meta.record int 2PBC Source Name in the Palermo BAT Catalogue (JHHMM.s+DDMM) meta.id;meta.main char CName Counterpart Name meta.id char CType Counterpart Type src.class char RAJ2000 Right ascension (J2000.0) deg pos.eq.ra;meta.main DEJ2000 Declination (J2000.0) deg pos.eq.dec;meta.main eBox Error Box of the BAT detected source arcmin stat.error float Offset ? Distance between BAT pos and counterpart pos arcmin meta.id.assoc;pos.angDistance float nullable S/N S/N of the BAT detection stat.snr float Flux Flux in the 15-150keV band mW.m**-2 phot.flux.density;em.gamma.hard double e_Flux Error on Flux mW.m**-2 stat.error;phot.flux double HR ? Hardness ratio [30-150keV]/[15-150keV] phot.flux;arith.ratio float nullable e_HR ? Error on HR stat.error float nullable z ? Redshift src.redshift float nullable logL ? Luminosity (log) log(1e-07W) phys.luminosity;em.gamma float nullable Var Variability index src.var.index float fd [1/3] Energy band with best detection (1) meta.code int fX [Y/N] Yes if already reported in other hard X-ray catalogues meta.code char fG [hl] high/low position on the Galactic plane (2) meta.code char SimbadName Simbad column added by the CDS meta.id nullable fI [ab] Identification strategy (3) meta.code char INT [I] Source seen by INTEGRAL meta.code char ROS [fb] Source correlated with ROSAT source (4) meta.code char Fer [F?] Source correlated with Fermi source (5) meta.code char