Gravitational Waves of Jet Precession in Gamma-ray Bursts

Details Gravitational Waves of Jet Precession in Gamma-ray Bursts Gravitational Waves of Jet Precession in Gamma-ray Bursts

2012-04-10

arxiv.org/abs/1204.2028v1

Astronomy and Astrophysics

Astrophysics

High Energy Astrophysical Phenomena

19 pages, 6 figures, accepted for publication in ApJ

Scientific paper

The physical nature of gamma-ray bursts (GRBs) are believed to involve an ultra-relativistic jet. The observed complex structure of light curves motivate the idea of jet precession. In this work, we study the gravitational waves of jet precession based on neutrino-dominated accretion disks around black holes, which may account for the central engine of GRBs. In our model, the jet and the inner part of the disk may precess along with the black hole, which is driven by the outer part of the disk. Gravitational waves are therefore expected to be significant from this black hole-inner disk precession system. By comparing our numerical results with the sensitivity of some detectors, we find that it is possible for DECIGO and BBO to detect such gravitational waves, particularly for GRBs in the Local Group.

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