Black Hole Astrophysics:. Gravitomagnetism and Non Keplerian Orbits

Details Black Hole Astrophysics:. Gravitomagnetism and Non Keplerian Orbits Black Hole Astrophysics:. Gravitomagnetism and Non Keplerian Orbits

Jul 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001rfg..conf...67d&link_type=abstract

REFERENCE FRAMES AND GRAVITOMAGNETISM. Proceedings of the XXIII Spanish Relativity Meeting. Held 6-9 September 2000 in Valladoli

Astronomy and Astrophysics

Astrophysics

Scientific paper

We consider the formation of stable non-Keplerian rings of matter around rotating black holes. These rings can accomodate particles with energy much higher than what would be allowed on stable Keplerian orbits and in some cases they can "stably" store an infinite (in principle) amount of energy. Here we show that this particular phenomenon, is a consequence of a general relativistic effect which states that non geodesic circular orbits with maximal or minimal acceleration occur, in the Kerr metric, with a non zero angular velocity with respect to infinity. From the astrophysical point of view, a sudden release of the large amount energy which may have been confined on those rings, can account for the rapid variability observed in most of the active galactic nuclei.

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