Free Access
Astron. Astrophys. Suppl. Ser.
Volume 138, Number 3, September 1999
Gamma-Ray Bursts in the Afterglow Era Contents Rome, November 3-6, 1998
Page(s) 523 - 524
Published online 15 September 1999
DOI: 10.1051/aas:1999337

Astron. Astrophys. Suppl. Ser. 138, 523-524

Theoretical interpretation of the X-ray properties of GRB 960720

F. Daigne - R. Mochkovitch

Send offprint request: F. Daigne

Institut d'Astrophysique de Paris, CNRS, 98 bis boulevard Arago, 75014 Paris, France

Received December 29, 1998; accepted March 9, 1999


BeppoSAX observations of the single pulse burst GRB 960720 have allowed a detailed study of its X-ray properties: pulse width in different energy bands, spectral evolution from 2 to 700 keV, etc. We show that the early (0-5 s) X-ray emission and the gamma-rays are well explained by internal shocks in a relativistic wind while the late (5-20 s) X-ray emission could come from the reverse shock generated in the wind when it interacts with the external medium. The results for a medium of uniform density are compared to the observations.

Key words: gamma-rays: bursts

Copyright The European Southern Observatory (ESO)

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.