NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-05-20 T21:01:53 PDT
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For refcode 2010A&A...510A..48C:
Retrieve 755 NED objects in this reference.
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Copyright by European Southern Observatory (ESO). Reproduced by permission
2010A&A...510A..48C The Palermo Swift-BAT hard X-ray catalogue. II. Results after 39 months of sky survey Cusumano, G.; La Parola, V.; Segreto, A.; Mangano, V.; Ferrigno, C.; Maselli, A.; Romano, P.; Mineo, T.; Sbarufatti, B.; Campana, S.; Chincarini, G.; Giommi, P.; Masetti, N.; Moretti, A.; Tagliaferri, G. Abstract. Aims: We present the Palermo Swift-BAT hard X-ray catalogue obtained from the analysis of data acquired during the first 39 months of the Swift mission. Methods: We developed a dedicated software to perform the data reduction, mosaicking, and source detection of the BAT survey data. We analyzed the BAT dataset in three energy bands (14-150 keV, 14-30 keV, 14-70 keV), obtaining a list of 962 detections above a significance threshold of 4.8 standard deviations. The identification of the source counterparts was pursued using three strategies: cross-correlation with published hard X-ray catalogues, analysis of field observations of soft X-ray instruments, and cross-correlation with SIMBAD databases. Results: The survey covers 90% of the sky down to a flux limit of 2.5 x10^-11^ erg cm^-2^ s^-1^ and 50% of the sky down to a flux limit of 1.8 x10^-11^ erg cm^-2^ s^-1^ in the 14-150 keV band. We derived a catalogue of 754 identified sources, of which ~69% are extragalactic, ~27% are Galactic objects, and ~4% are already known X-ray or gamma ray emitters, whose nature has yet to be determined. The integrated flux of the extragalactic sample is ~1% of the cosmic X-ray background in the 14-150 keV range. Key words: X-rays: general, catalogs, surveys
Retrieve 755 NED objects in this reference.
Please click here for ADS abstract

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