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GRB 020411

GCN Circular 1354

Subject
BeppoSAX ALERT: possible GRB020411
Date
2002-04-11T06:14:39Z (23 years ago)
From
Giangiacomo Gandolfi at IAS/CNR Frascati <gandolfi@ias.rm.cnr.it>
BeppoSAX ALERT: possible GRB020411

On Apr. 11, 01:49:05 UT a further possible GRB has been
detected in BeppoSAX WFC1. Unfortunately GRBM was again switched off at
that time. A Quick Look analysis seems to confirm the X-ray Flash or GRB
nature of the event.

Preliminary coordinates are:

R.A.(2000)= 78.111
DEC.(2000)= 68.257

The error radius  is 5'.

G. Gandolfi
on behalf of
BeppoSAX Mission Scientist

GCN Circular 1356

Subject
April 11 BeppoSAX event (GRB020411) is likely not a GRB
Date
2002-04-11T07:36:48Z (23 years ago)
From
Giangiacomo Gandolfi at IAS/CNR Frascati <gandolfi@ias.rm.cnr.it>
April 11 BeppoSAX event (GRB020411) is likely not a GRB

A more refined analysis of April 11 event (possible GRB020411) gives
results which are inconsistent with the GRB hypothesis. Therefore we
cannot confirm the nature of the burst and conclude that the inccrease of
counts could be related to solar activity.

G. Gandolfi
on behalf of BeppoSAX Mission Scientist

#----------------------------------#-----------------------------------------#
  Giangiacomo Gandolfi              | E-mail:
  Istituto Astrofisica Spaziale     | gandolfi@ias.rm.cnr.it
  C.N.R.                            |
  Via Fosso del Cavaliere           | phone: -39-06-4993-4005
  I-00133 Roma                      |
  Italy                             | fax(CNR)  : -39-06-20660188
#__________________________________#_________________________________________#

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