GCN Circular 5179
Subject
GRB060526: possible break in the optical light curve
Event
Date
2006-05-28T17:07:23Z (20 years ago)
From
Christina Thoene at Niels Bohr Institute,DARK Cosmo Ctr <cthoene@astro.ku.dk>
Christina C. Thoene, Johan P.U. Fynbo (DARK Cosmology Centre), Uffe G.
Joergensen (NBI Copenhagen) report:
We observed the OT of GRB060526 (GCN 5162, GCN 5166) with the Danish 1.54m
telescope and DFOSC on La Silla in the R-band at several epochs on May 26
and May 27.
A fit to our data from the first night gives a powerlaw decay with a
temporal decay index of 0.86, whereas the data obtained at the second
night are well fitted by a powerlaw with index 1.73. Therefore, in
contrast to the flattening reported in GCN 5177, we observe a considerable
steepening of the lightcurve between the first and the second night and a
possible break between the two nights.
A plot of the data and fit is available at:
www.astro.ku.dk/~cthoene