[vsnet-grb-info 1934] Swift-BAT trigger 149118 is very likely not a GRB

GCN Circulars gcncirc at capella.gsfc.nasa.gov
Sat Aug 6 11:36:45 JST 2005


TITLE:   GCN GRB OBSERVATION REPORT
NUMBER:  3773
SUBJECT: Swift-BAT trigger 149118 is very likely not a GRB
DATE:    05/08/06 02:34:36 GMT
FROM:    Jay R. Cummings at NASA/GSFC/Swift  <jayc at milkyway.gsfc.nasa.gov>

J. Cummings (GSFC/NRC), S. Barthelmy (GSFC), D. Burrows (PSU),
M. Chester (PSU), N. Gehrels (GSFC), M Goad (U. Leicester),
O. Godet (U. Leicester), J. Kennea (PSU), A. Morgan (PSU),
C. Pagani (PSU), D. Palmer (LANL)
on behalf of the Swift team:

The Swift-BAT trigger (trigger=149118) at 18:04:00 UT on 05 Aug 2005
is very likely not a GRB.  At the time of the trigger there is only a
weak excess in the lightcurve and a very weak excess in the image data.

Ground analysis of the XRT data does not show any X-ray source within the 
BAT error circle in 2.2ks of accumulated observations.  We therefore 
conclude from the XRT data that Trigger 149118 is very likely not a GRB.




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