[vsnet-grb-info 4625] Swift-BAT trigger 278809 is not a GRB
GCN Circulars
gcncirc at capella.gsfc.nasa.gov
Tue May 8 00:45:41 JST 2007
TITLE: GCN CIRCULAR
NUMBER: 6381
SUBJECT: Swift-BAT trigger 278809 is not a GRB
DATE: 07/05/07 15:45:36 GMT
FROM: Scott Barthelmy at NASA/GSFC <scott at lheamail.gsfc.nasa.gov>
S. D. Barthelmy (GSFC), L. Barbier (GSFC), J. Cummings (GSFC/ORAU),
E. Fenimore (LANL), N. Gehrels (GSFC), H. Krimm (GSFC/USRA),
C. Markwardt (GSFC/UMD), D. Palmer (LANL), A. Parsons (GSFC),
T. Sakamoto (GSFC/ORAU), G. Sato (ISAS), M. Stamatikos (GSFC),
J. Tueller (GSFC)
on behalf of the Swift-BAT team:
The Swift-BAT trigger (trigger=278809) at 13:24:51 UT on 07 May 2007,
tentatively labelled GRB 070507 (GCN 6380, Vetere et al.),
is not due to a GRB or any other astrophysical source. This trigger
is due to a cosmic ray shower event in the instrument. All 128 events
occurred in the same 100 microsec window.
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