Observations of soft gamma-ray afterglow from two bright GRB detected by the PHEBUS/GRANAT

Authors
Tkachenko, A Burenin, R Terekhov, O Sunyaev, R Barat, C Dezalay, JP Vedrenne, G
Citation
A. Tkachenko et al., Observations of soft gamma-ray afterglow from two bright GRB detected by the PHEBUS/GRANAT, ASTROPHYS L, 39(1-6), 1999, pp. 745-748
Citations number
11
Categorie Soggetti
Space Sciences
Journal title
ASTROPHYSICAL LETTERS & COMMUNICATIONS
ISSN journal
08886512 → ACNP
Volume
39
Issue
1-6
Year of publication
1999
Pages
745 - 748
Database
ISI
SICI code
0888-6512(1999)39:1-6<745:OOSGAF>2.0.ZU;2-E
Abstract
We present the results of observations of the soft gamma-ray(100 - 500 keV) afterglow from two brightest GRBs detected by the PHEBUS instrument aboard GRANAT: 910402 and 920723. The light curves of main events make a smooth t ransition into the afterglows with fading fluxes. The power law indices of this decays are equal to -1.07+/-0.17 and -0.74+/-0.07 correspondingly.