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Swift/BAT teams announces website with catalog of AGN from the first 9

ATEL # 1429; W. Baumgartner (NASA GSFC/UMBC), J. Tueller (NASA GSFC), R. Mushotzky (NASA GSFC), S. Barthelmy (NASA GSFC), J. Cannizzo (NASA GSFC/UMBC), N. Gehrels (NASA GSFC), C. Markwardt (NASA GSFC/UMCP), G. Skinner (NASA GSFC/UMCP), L. Winter (NASA GSFC/UMCP)
on 17 Mar 2008; 18:22 UT
Password Certification: Wayne Baumgartner (

Subjects: X-ray, Gamma Ray, AGN, Black Holes, Quasars

The Swift/BAT team announces a new website featuring 153 AGN found in the first 9 months of the BAT all sky survey. Several of the detections in the 9-month survey are the first high energy detections of these galaxies, including objects not known to be AGN before detection in this survey. The website can be found at The website presents the data from the BAT instrument for the catalog sources including the hard X-ray flux in 4 bands and the 9-month lightcurves. The BAT survey is fairly uniform across the entire sky; the 4.8 sigma threshold in the 9-month survey covers 80% of the sky at a flux threshold of 3.5x10-11 ergs/cm2/s in the 14-195 keV band and covers one third of the sky near the ecliptic poles to 2.5x10-11 ergs/cm2/s. A full description of the survey and the 9-month AGN catalog can be found in Tueller et al. (arXiv:0711.4130). The full BAT data set is archived at the HEASARC and available to the public.

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R. E. Rutledge , Editor
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