Swift-BAT [CADE]

Swift-BAT

The Swift gamma-ray burst (GRB) observatory was launched in 2004 November, and has been continually observing the hard X-ray (14–195 keV) sky ever since with the Burst Alert Telescope (BAT). The 70 month Swift-BAT survey is the most sensitive and uniform hard X-ray all-sky survey and reaches a flux level of 1.03×10−11 erg s−1cm−2 over 50% of the sky and 1.34×10−11 erg s−1cm−2 over 90% of the sky. Swift has three co-aligned instruments for studying gamma-ray bursts and their afterglow: the Burst Alert Telescope (BAT), the X-ray Telescope (XRT), and the Ultraviolet/Optical Telescope (UVOT).

CADE only serves data obtained with the BAT instrument, in 8 energy bands: 14-20 keV, 20-24 keV, 24-35 keV, 35-50 keV, 50-75 keV, 75-100 keV, 100-150 keV, and 150-195 keV, at an angular resolution of 19.5'. Healpix maps are in units of cnts/s/detector. The detector is an individual piece of CZT in the BAT array with an area of 1.6E-7 m2.

Healpix maps made by D. Paradis.

References

' The Swift Gamma-Ray Burst Mission' by Gehrels, N., et al., 2004, ApJ, 611, 1005 http://adsabs.harvard.edu/abs/2004ApJ...611.1005G

' The 70 Month Swift-BAT All-sky Hard X-Ray Survey' by Baumgartner, W. H., et al., 2013, ApJS, 207, 19 http://adsabs.harvard.edu/abs/2013ApJS..207...19B