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IMPLICATIONS FOR THE ORIGIN OF GRB 051103 FROM LIGO OBSERVATIONS

Author(s)
Barnum, Sam; Barsotti, Lisa; Blackburn, Lindy L.; Bodiya, Timothy Paul; Corbitt, Thomas R.; Donovan, Frederick J.; Dwyer, S.; Evans, Matthew J.; Foley, S.; Fritschel, Peter K.; Harry, Gregory; Hughey, B.; Katsavounidis, Erotokritos; MacInnis, Myron E.; Mason, Kenneth R.; Matichard, Fabrice; Mavalvala, Nergis; Mittleman, Richard K.; Shapiro, B.; Shoemaker, David H.; Smith, N. D.; Soto, J.; Stein, A. J.; Waldman, S. J.; Weiss, Rainer; Wipf, Christopher; Zucker, Michael E.; ... Show more Show less
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Abstract
We present the results of a LIGO search for gravitational waves (GWs) associated with GRB 051103, a short-duration hard-spectrum gamma-ray burst (GRB) whose electromagnetically determined sky position is coincident with the spiral galaxy M81, which is 3.6 Mpc from Earth. Possible progenitors for short-hard GRBs include compact object mergers and soft gamma repeater (SGR) giant flares. A merger progenitor would produce a characteristic GW signal that should be detectable at a distance of M81, while GW emission from an SGR is not expected to be detectable at that distance. We found no evidence of a GW signal associated with GRB 051103. Assuming weakly beamed γ-ray emission with a jet semi-angle of 30°, we exclude a binary neutron star merger in M81 as the progenitor with a confidence of 98%. Neutron star-black hole mergers are excluded with >99% confidence. If the event occurred in M81, then our findings support the hypothesis that GRB 051103 was due to an SGR giant flare, making it one of the most distant extragalactic magnetars observed to date.
Date issued
2012-08
URI
http://hdl.handle.net/1721.1/92918
Department
Massachusetts Institute of Technology. Department of Physics; MIT Kavli Institute for Astrophysics and Space Research
Journal
Astrophysical Journal
Publisher
Institute of Physics/American Astronomical Society
Citation
Abadie, J., B. P. Abbott, T. D. Abbott, R. Abbott, M. Abernathy, C. Adams, R. Adhikari, et al. “IMPLICATIONS FOR THE ORIGIN OF GRB 051103 FROM LIGO OBSERVATIONS.” The Astrophysical Journal 755, no. 1 (July 19, 2012): 2. © 2012 American Astronomical Society.
Version: Final published version
Other identifiers
LIGO Laboratory document number LIGO-P10000097-v12
ISSN
0004-637X
1538-4357

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