The Swift-BAT 104 Month Hard X-ray Survey
Abstract
The BAT hard X-ray instrument on the Swift observatory has now collected nearly ten years of data, comprising the deepest and most uniform hard X-ray all sky survey to date. We present results from the first 104 months of the survey, including the source catalog and eight-band spectra of over 1400 objects including X-ray binaries, cataclysmic variables, blazars, and AGN. The 104 month BAT survey has greater than 14 Ms of equivqlent on-axis exposure over half the sky, and over 10 Ms for 90% of the sky.New results from the 104 month survey include a 4-sigma detection of the Ti-44 lines from the Tycho supernova remnant using the standard survey spectra, only the third such detection after Cas A and SN 1987A.
- Publication:
-
AAS/High Energy Astrophysics Division #14
- Pub Date:
- August 2014
- Bibcode:
- 2014HEAD...1412018B