2003/03/14 by Luciano Rezzolla, Rezzolla, Luciano
Physics and Astronomy · #Astrophysical Phenomena and Observations #Black Holes and Theoretical Physics #Pulsars and Gravitational Waves Research #astro-ph #gr-qc
paper · pdf · doi:10.48550/arxiv.gr-qc/0303057
Invited Talk at the 15th SIGRAV Conference, Frascati Sept. 2002; IOP Conference Series, one reference added
arxiv created 2003/03/21 · arxiv updated 2009/11/30
I present results of two-dimensional general relativistic hydrodynamical simulations of constant specific angular momentum tori orbiting around a Schwarzschild black hole. After introducing axisymmetric perturbations, these objects either become unstable to the runaway instability or respond with regular oscillations. The latter, in particular, are responsible for quasi-periodic bursts of accretion onto the black hole as well as for the emission of intense gravitational radiation, with signal-to-noise ratios at the detector which are comparable or even larger than the typical ones expected in stellar-core collapse.