伽玛暴(Gamma-Ray Burst)笔记。记录有关伽玛暴的新文章,另外也包括看的老文章、自己的想法、以及跟天文相关的一些东西。 Feel free to leave me a message by comments or by email.

星期一, 九月 10, 2007

Bastieri 2007 MAGIC对伽玛暴的高能辐射的上限限制

主要内容:
80 to 200 GeV, 对一批暴做了上限,从2005年4月到2006年3月。

精彩摘抄:
部分上限

文章信息:

arXiv:0709.1386 [ps, pdf, other]
Title: MAGIC upper limits on the high energy emission from GRBs
Comments: Contribution to the 30th ICRC, Merida Mexico, July 2007 on behalf of the MAGIC Collaboration
Subjects: Astrophysics (astro-ph)

During its cycle-1 observation period, between April 2005 and March 2006, the MAGIC telescope was able to observe nine Gamma Ray Burst (GRB) events since their early beginning. Other observations were performed during the following months in the cycle-2 observation period. The observations, with an energy threshold spanning from 80 to 200 GeV, did not reveal any gamma ray emission. The computed upper limits are compatible with a power law extrapolation, where intrinsic fluxes are evaluated taking into account the attenuation due to the scattering in the metagalactic radiation field.

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