[vsnet-alert 4905] BeppoSAX MAIL n. 00/14: GRB000528: NFI follow-up

["Luigi Piro, BeppoSAX Mission Scientist" <piro@ias.rm.cnr.it>]

BeppoSAX MAIL n. 00/14: GRB000528: NFI follow-up
A BeppoSAX follow up of GRB000528 with the Narrow Field Instruments
started around May 28 at 20:50 UT, i.e. about 12 hours after the GRB.

Preliminary analysis of the MECS (1.6-10 keV) data shows
two previously unknown sources inside the field. The preliminary WFC error
box (BeppoSAX Mail #10) contains both objects, while the refined one
(BeppoSAX Mail #11 and GCN 677) only the second.

Object #1:

R.A.(2000)= 161.365
DEC(2000)= -33.975

Object #2:

R.A.(2000)= 161.287
DEC(2000)= -33.986

both with  an error radius of 1.5'.

The source #1 is possibly fading, while the #2 seems to be consistent with
a constant flux. Further and more detailed analysis are in progress.

G. Gandolfi
on behalf of BeppoSAX Mission Scientist

#----------------------------------#------------------------------------------#
 Luigi Piro                        | E-mail:
 Istituto Astrofisica Spaziale     |              piro@ias.rm.cnr.it
 C.N.R.                            | SAX program: saxsci@ias.rm.cnr.it 
 Via Fosso del Cavaliere           | phone: -39-06-4993-4007 
 I-00133 Roma                      | phone BeppoSAX center: -39-06-4079-6393
 Italy                             | fax(CNR)  : -39-06-20660188
#__________________________________#___________________________________________#

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