Gravitational Waves from Gamma-ray Bursts
نویسنده
چکیده
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 cat-alyzes 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 f gw = 470Hz (E SN R /4×10 51) 1/2 (0.1/β) 1/2 (7M ⊙ /M H) 3/2 , where E SN R is the kinetic energy in the SNR, M H 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 conceivably illustrated by RX J050736-6847.8.
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