GCN Circular 5793
Subject
Swift-BAT Trigger 237821 is a Cosmic Ray Shower event
Date
2006-11-09T03:08:45Z (20 years ago)
From
Scott Barthelmy at NASA/GSFC <scott@lheamail.gsfc.nasa.gov>
Swift-BAT Trigger 237821 is a Cosmic Ray Shower event
S.D. Barthelmy (GSFC), L. Barbier (GSFC), J. Cummings (GSFC/UMBC),
A.D Falcone (PSU), E. Fenimore (LANL), N. Gehrels (GSFC),
D. Hullinger (BYU-Idaho), H. Krimm (GSFC/USRA), C. Markwardt (GSFC/UMD),
D. Palmer (LANL), A. Parsons (GSFC), T. Sakamoto (GSFC/ORAU),
G. Sato (GSFC/ISAS), M. Stamatikos (GSFC/ORAU), J. Tueller (GSFC)
on behalf of the Swift-BAT team:
The BAT trigger 237821 (Falcone et al, GCN Circ 5790) is not a GRB.
It is due to a cosmic ray shower in the spacecraft. All 100 events
recorded in the BAT detector array occurred within a pair of 100-microsecond
timestamp intervals. There is a remote chance that this is actually
due to instrumental noise. Either way, it is not a GRB, nor is it
anything astrophysical.