McGlynn 2008 短暴GRB070707的观测

主要内容:
是第一个被INTEGRAL观测到的短暴。

精彩摘抄:


文章信息:

arXiv:0805.2880 [ps, pdf, other]

Title: GRB 070707: the first short gamma-ray burst observed by INTEGRAL

Authors: S. McGlynn (1,2), S. Foley (1), S. McBreen (3), L. Hanlon (1), R. O'Connor (1), A. Martin Carrillo (1), B. McBreen (1) ((1) University College Dublin, (2) Royal Institute of Technology (KTH), Stockholm (3) MPE Garching)

Comments: 7 pages, 3 figures, accepted for publication in A&A

Subjects: Astrophysics (astro-ph)

INTEGRAL has observed 47 long-duration GRBs (T_90 > 2s) and 1 short-duration GRB (T_90 < alpha =" -1.19">~ 25 for GRB 070707, assuming the typical redshift for short GRBs of z=0.35. This limit is consistent with previous estimates for short GRBs and is smaller than the lower limits of Gamma >~ 100 calculated for long GRBs. If GRB 070707 is a member of the recently postulated class of short GRBs at z ~ 1, the lower limit on Gamma increases to Gamma >~ 35.