Proposed source of gravitational radiation from a torus around a black hole

被引:64
作者
van Putten, MHPM [1 ]
机构
[1] MIT, Cambridge, MA 02139 USA
关键词
D O I
10.1103/PhysRevLett.87.091101
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
Long gamma-ray bursts (GRBs) could be emitted from rapidly spinning black-hole-torus systems, resulting from either hypernovae or black-hole-neutron-star coalescence. We show that a nonaxisymmetric torus may also radiate gravitational radiation, powered by the spin energy of the black hole. The coupling to the spin energy of the black hole operates by equivalence in poloidal topology to pulsar magneto spheres. Results calculated in the suspended-accretion state indicate that GRBs are potentially the most powerful LIGO/VIRGO burst sources in the Universe, with an expected duration of 10-15 s on a horizontal branch of 1-2 kHz in the f(f) diagram.
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页数:4
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