GB980425: BeppoSAX NFI follow up UPDATE
ATel #15; Editor
on 29 Apr 1998; 18:42 UT
Credential Certification:
Subjects: Gamma Ray, Gamma-Ray Burst
Further to previous Telegrams (ATEL #12, #13, #14), I received the following:
BeppoSAX GRB MAIL N. 98/12
^^^^^^^^^^^^^^^^^^^^^^^^^^
GB980425: BeppoSAX NFI follow up UPDATE
The first TOO pointing of GB980425 with the NFI was completed
with a total duration of about 2 days.
The unknown x-ray source quoted in the previous mail (98/11),
reporting preliminary results of the first 27 hr, remains at about the
same flux as before.
A more detailed analysis shows another unknown X-ray source at
R.A.: 19h 35m 21s
Dec.: -52d 52' 19"
(equinox 2000.0) with an error radius of 1'.
This source is visible only during the first day of observation at a flux
of about 10E-13 c.g.s. (2-10 keV). The upper limit in the second part of
the observation implies a decay by about a factor of two or more.
Luigi Piro
BeppoSAX Mission Scientist
