考虑能量注入到反向激波中,或者外激波中,所产生的同步辐射和逆康普顿散射的高能成分。(不知道这里为什么只针对短暴)
精彩摘抄:
文章信息:
· Find Similar Abstracts (with default settings below) - · arXiv e-print (arXiv:1312.0590)
- · Citations to the Article (1) (Citation History)
- · Refereed Citations to the Article
- · Also-Read Articles (Reads History)
- ·
- · Translate This Page
| Title: | Prospects for GeV-TeV detection of short gamma-ray bursts with extended emission | |
| Authors: | Veres, P.; Mészáros, P. | |
| Publication: | eprint arXiv:1312.0590 | |
| Publication Date: | 12/2013 | |
| Origin: | ARXIV | |
| Keywords: | Astrophysics - High Energy Astrophysical Phenomena | |
| Comment: | 8 pages, 15 figures, submitted to ApJ | |
| Bibliographic Code: | 2013arXiv1312.0590V |
Abstract
We discuss the GeV to TeV photon emission of gamma-ray bursts (GRBs) within the refreshed shock and the continuous injection scenarios, motivated by the observation of extended emission in a substantial fraction of short GRBs. In the first model we assume that the central engine emits promptly material with a range of Lorentz factors. When the fastest shell starts to decelerate, it drives a forward shock into the ambient medium and a reverse shock in the ejecta. These shocks are reenergized by the slower and later arriving material. In the second model we assume that there is a continued ejection of material over an extended time, and the continuously arriving new material keeps reenergizing the shocks formed by the preceding shells of ejecta. We calculate the synchrotron and synchrotron self-Compton radiation components for the forward and reverse shocks and find that prospective and current GeV to TeV range instruments such as CTA, HAWC, VERITAS and HESS have a good chance to detect afterglows of short bursts with extended emission, assuming a reasonable response time.| Bibtex entry for this abstract Preferred format for this abstract (see Preferences) |
没有评论:
发表评论