Abbott 2007 No gravitational wave observed from GRB 070201

主要内容:
From LIGO. Implies that the short burst GRB 070201 may not came from double NSs merger.

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文章信息:

arXiv:0711.1163 [ps, pdf, other]

Title: Implications for the Origin of GRB 070201 from LIGO Observations

Authors: B. Abbott, et al, for the LIGO Scientific Collaboration

Comments: 10 pages 5 figures 1 table

Subjects: Astrophysics (astro-ph)

We analyzed the available LIGO data coincident with GRB 070201, a short duration hard spectrum gamma-ray burst whose electromagnetically determined sky position is coincident with the spiral arms of the Andromeda galaxy (M31). Possible progenitors of such short hard GRBs include mergers of neutron stars or a neutron star and black hole, or soft gamma-ray repeater (SGR) flares. These events can be accompanied by gravitational-wave emission. No plausible gravitational wave candidates were found within a 180 s long window around the time of GRB 070201. This result implies that a compact binary progenitor of GRB 070201, with masses in the range 1 M_sun <>99% confidence. Indeed, if GRB 070201 were caused by a binary neutron star merger, we find that D <>