0124776 - ASU-R 20010029 RIV FR eng J - Journal Article
Castro-Tirado, A.J. - Sokolov, V. V. - Gorosabel, J. - Castro Cerón, J. M. - Greiner, J. - Wijers, R. A. M. J. - Jensen, B. L. - Hjorth, J. - Toft, S. - Pedersen, H. - Palazzi, E. - Pian, E. - Massetti, N. - Sagar, R. - Mohan, V. - Pandey, A. K. - Pandey, S. B. - Dodonov, S. N. - Fatkhullin, T. A. - Afanasiev, V. L. - Komarova, V. N. - Moiseev, A. V. - Hudec, René - Šimon, Vojtěch
The extraordinarily birth optical afterglow of GRB 991208 and its host galaxy.
Astronomy & Astrophysics. Roč. 370, č. 2 (2001), s. 398-406. ISSN 0004-6361. E-ISSN 1432-0746
R&D Projects: GA ČR GA205/99/0145
Institutional research plan: CEZ:AV0Z1003909
Keywords : gamma rays * bursts * general galaxies * cosmology
Subject RIV: BN - Astronomy, Celestial Mechanics, Astrophysics
Impact factor: 2.790, year: 2000

The flux decay constant of the optical afterglow of GRB 991208 in the R-band is found to be -2.30+/-0.07 up to 5 days, which is very likely due to the jet effect, and it is followed by a much steeper decay with constant -3.2+/-0.2.
Permanent Link: http://hdl.handle.net/11104/0023035