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| Paper: |
Gravitational Waves From Gamma-Ray Bursts |
| Volume: |
312, Third Rome Workshop on Gamma-Ray Bursts in the Afterglow Era |
| Page: |
471 |
| Authors: |
van Putten, M.H.P.M. |
| Abstract: |
We present a mechanism for long bursts of gravitational radiation from Kerr black holes surrounded by a torus. These systems are believed to form in core-collapse of massive stars in association with gamma-ray bursts. The torus catalyzes black hole-spin energy mostly into gravitational radiation, with a minor output in winds, thermal and neutrino emissions. Torus winds impact the remnant envelope of the progenitor star from within, which may account for X-ray emission lines and leaves a supernova remnant. The frequency in gravitational radiation satisfies fgw = 470 Hz (ESNR/4 × 1051)1/2(0.1/β)1/2(7MSolar/MH)3/2, where ESNR is the kinetic energy in the SNR, MH is the black hole mass and β ≈ 0.1 the initial ejection velocity as detected in GRB 011211. Ultimately, this leaves a black hole binary surrounded by a SNR, which is conceivable illustrated by RX J050736-6847.8 |
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