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The 105 month Swift-BAT all-sky hard X-ray survey

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arxiv 1801.01882 v1 pith:XFPYIJ3Q submitted 2018-01-05 astro-ph.HE

classification astro-ph.HE
keywords x-rayhardswift-batmonthsourcescatalogsurveyall-sky
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abstract

We present a catalog of hard X-ray sources detected in the first 105 months of observations with the Burst Alert Telescope (BAT) coded mask imager on board the Swift observatory. The 105 month Swift-BAT survey is a uniform hard X-ray all-sky survey with a sensitivity of $8.40\times 10^{-12}\ {\rm erg\ s^{-1}\ cm^{-2}}$ over 90% of the sky and $7.24\times 10^{-12}\ {\rm erg\ s^{-1}\ cm^{-2}}$ over 50% of the sky in the 14-195 keV band. The Swift-BAT 105 month catalog provides 1632 (422 new detections) hard X-ray sources in the 14-195 keV band above the 4.8{\sigma} significance level. Adding to the previously known hard X-ray sources, 34% (144/422) of the new detections are identified as Seyfert AGN in nearby galaxies (z<0.2). The majority of the remaining identified sources are X-ray binaries (7%, 31) and blazars/BL Lac objects (10%, 43). As part of this new edition of the Swift-BAT catalog, we release eight-channel spectra and monthly sampled light curves for each object in the online journal and at the Swift-BAT 105 month Web site.

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Forward citations

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