IAA authors:
Castro-Tirado, A.J.;Verdes-Montenegro, L.
Authors:
Masetti N., Bartolini C., Bernabei S., Guarnieri A., Palazzi E., Pian E., Piccioni A., Castro-Tirado A.J., Castro Cerón J.M., Verdes-Montenegro L., Sagar R., Mohan V., Pandey A.K., Pandey S.B., Bock H., Greiner J., Benetti S., Wijers R.A.M.J., Beskin G.M., Gorosabel J.
Journal:
Astronomy and Astrophysics
Abstract:
We present BV RI light curves of the afterglow of GRB000301C, one of the brightest ever detected at a day time scale interval after GRB trigger. The monitoring started 1.5 days after the GRB and ended one month later. Inspection of the extremely well sampled R band light curve and comparison with BVI data has revealed complex behavior, with a long term flux decrease and various short time scale features superimposed. These features are uncommon among other observed afterglows, and might trace either intrinsic variability within the relativistic shock (re-acceleration and re-energization) or inhomogeneities in the medium in which the shock propagates.