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Astron. Astrophys. 362, 865-870 (2000)

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A toroidal black hole for the AGN phenomenon

F. Pompilio 1, S.M. Harun-or-Rashid 2 and M. Roos 2

1 SISSA (ISAS), Via Beirut 2-4, 34013 Trieste, Italy
2 Division of High Energy Physics, PL-9, 00014 University of Helsinki, Finland

Received 17 July 2000 / Accepted 31 August 2000


A new approach to the study of the AGN phenomenon is proposed, in which the nucleus activity is related to the metric of the inner massive black hole. The possibility of a Toroidal Black Hole (TBH), in contrast to the usual Spherical Black Hole (SBH), is discussed as a powerful tool in understanding AGN related phenomena, such as the energetics, the production of jets and the acceleration of particles, the shape of the magnetic field and the lifetime of nucleus activity.

Key words: acceleration of particles – black hole physics – galaxies: nuclei

Send offprint requests to: F. Pompilio (pompilio@sissa.it)

© European Southern Observatory (ESO) 2000

Online publication: October 30, 2000