| Issue |
EAS Publications Series
Volume 61, 2013
Gamma-ray Bursts: 15 Years of GRB Afterglows – Progenitors, Environments and Host Galaxies from the Nearby to the Early Universe
|
|
|---|---|---|
| Page(s) | 319 - 323 | |
| Section | Chapter VII: Short GRBs | |
| DOI | https://doi.org/10.1051/eas/1361050 | |
| Published online | 22 July 2013 | |
A.J. Castro-Tirado, J.Gorosabel and I.H. Park (eds)
EAS Publications Series, 61 (2013) 319-323
Short duration gamma-ray burst with extended emission
1 Space Research Institute of the
Russian Academy of Sciences, Moscow, Russia
e-mail: apozanen@iki.rssi.ru
2 Max-Planck-Institut für Kernphysik,
Saupfercheckweg 1,
69117
Heidelberg,
Germany
Assuming that the extended emission (EE) with broad dynamic range is a common property of short duration bursts, we propose a two-jet model which can describe both short main episode of hard spectra emission, specific for short bursts, and softer spectra EE by the different off axis position of the observer. The model involves a short-duration jet, which is powered by heating due to νν̅ annihilation, and a long-lived Blandford–Znajek (BZ) jet with a significantly narrow opening angle. We also discuss observational tests of two-jet model.
© EAS, EDP Sciences 2013