Variability of black-hole binary sources, and Lense-Thirring orbital precession

Details Variability of black-hole binary sources, and Lense-Thirring orbital precession Variability of black-hole binary sources, and Lense-Thirring orbital precession

May 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003nlgd.conf..282k&link_type=abstract

Nonlinear Gravitodynamics, meeting held in Rome and Pescara, Italy, June 29-July 4, 1998, Eds.: R. Ruffini and C. Sigismondi. Wo

Computer Science

Black Holes, General Relativity

Scientific paper

We discuss a possibility that observed radiation from active galactic nuclei (AGN) can be visibly modulated by collisions between stars (or secondary black holes) and an accretion disc around a central black hole. It is proposed that material swept out of the disc partly obscures the innermost region of the disc, while contributing by its own radiation. Under suitable circumstances, an individual orbiter can produce periodic modulation. If the central black hole is rotating and the companion star is at a low orbit, the Lense-Thirring orbital precession will show up in the signal and parameters of the central black hole can be thus determined.

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