GCN Circular 3254
Subject
GRB 050408: refined XRT analysis, no jet break seen yet
Date
2005-04-12T19:26:43Z (20 years ago)
From
David Burrows at PSU/Swift <dxb15@psu.edu>
M. Capalbi (ASDC), P. Romano (INAF-OAB), V. Mangano (INAF-IASF/Palermo), O.
Godet (U. Leicester), L. Angelini (GSFC) and D. N. Burrows (PSU) report on
behalf of the
Swift XRT team:
On 10 April 2004 we reported detection of a possible jet break in Swift XRT
data on GRB 050408, with additional observations scheduled to verify the
break in the light curve (Godet et al. 2005, GCN 3222). We now have
analyzed new data extending to about 300,000 s after the burst, and can
state that the reported possible jet break is not confirmed by the later
observations. No jet break is seen in the XRT data up to 300,000 s after
the burst.
Additional observations are planned over the next several days to continue
to search for a jet break in this afterglow.