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Swift/BAT reports a flaring state of PKS 0405-385

ATEL # 2284; H. A. Krimm (CRESST/GSFC/USRA), S. D. Barthelmy (GSFC), W. Baumgartner (CRESST/GSFC/UMBC), J. Cummings (CRESST/GSFC/UMBC), E. Fenimore (LANL), N. Gehrels (GSFC), C. B. Markwardt (CRESST/GSFC/UMD), D. Palmer (LANL), T. Sakamoto (CRESTT/GSFC/UMBC), G. Skinner (CRESST/GSFC/UMD), M. Stamatikos (OSU/GSFC), J. Tueller (GSFC), T. Ukwatta (GSFC/GWU)
on 6 Nov 2009; 19:55 UT
Password Certification: Hans A. Krimm (

Subjects: X-ray, AGN, Quasars

As part of its hard X-ray transient monitor program, the Burst Alert Telescope on Swift has detected a brightening of the rapidly variable radio quasar PKS 0405-385. The source first became detectable on 4-Nov-2009 (MJD 55139) and has remained at roughly the same daily average brightness for the past three days. On 6-Nov-2009, the source was at 0.0031 0.0012 counts/s/cm2, corresponding to ~14 mCrab in the 15-50 keV band. This object is normally not detectable in the transient monitor.

Note that this source is listed in the Fermi/LAT Bright Source catalog as an uncertain type of blazar.

Further observations at all wavelengths are encouraged.

BAT Transient Monitor observations of PKS 0405-385

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R. E. Rutledge , Editor
ATEL Mirror v1.0 Updates