Swift/BAT does not detect the FSRQ SDSS J002829.81+200026.7
ATel #12129; D. M. Palmer (LANL), S. D. Barthelmy (GSFC), J. R. Cummings (CPI), J. A. Kennea (PSU), H. A. Krimm (NSF/USRA), A. Y. Lien (GSFC/UMBC), C. B. Markwardt (GSFC), T. Sakamoto (AGU), M. Stamatikos (OSU), T. N. Ukwatta (LANL) (i. e. the Swift-BAT team)
on 18 Oct 2018; 16:07 UT
Credential Certification: Jamie A. Kennea (kennea@astro.psu.edu)
The Swift/BAT team have examined the BAT data record around the time of the flare of FSRQ SDSS J002829.81+200026.7, reported by Sun et al. (ATel #12120). We find that the flux increase reported is most likely due a known instrumental effect of electronic noise (hot pixels), which caused an increase in BAT's gross count rate.
On-board processing shows no detection of any activity at the reported location, either at the reported time or earlier in the mission.
We therefore conclude that the reported flare is very likely not of astrophysical origin.
