/ftp/cats/aliases/P/PBC_2_



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J/A+A/524/A64       The 54-month Palermo BAT-survey catalogue  (Cusumano+, 2010)
The following files can be converted to FITS (extension .fit or fit.gz)
	m54.dat
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Query from: http://vizier.cds.unistra.fr/viz-bin/VizieR?-source=J/A+A/524/A64
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Beginning of ReadMe : J/A+A/524/A64 The 54-month Palermo BAT-survey catalogue (Cusumano+, 2010) ================================================================================ The Palermo Swift-BAT Hard X-ray Catalogue. III. Results after 54 months of sky survey. 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. <Astron. Astrophys. 524, A64 (2010)> =2010A&A...524A..64C ================================================================================ ADC_Keywords: X-ray sources ; Surveys ; Active gal. nuclei Mission_Name: Swift Keywords: catalogs - surveys - X-rays: general Abstract: 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. Description: The 2nd Palermo BAT Catalogue contains the 1256 sources detected in the first 54 months of BAT survey data. It include the BAT position, together with the offset with respect to the identified counterpart (if any), the detection significance, the flux in the 15-150keV band, the hardness ratio in the [30-150]/[15-150] bands and the source luminosity, when a redshift is reported. It also contains information on the correlation of the BAT sources with the INTEGRAL, ROSAT and Fermi catalogue. Multiple lines are present for a single BAT source if it has been associated to more than one counterpart.