Publication date: n/a 2012
Abstract:
Marginally stable perfect fluid tori with uniform distribution of
specific angular momentum are determined in the
Reissner-Nordström-(anti-)de Sitter black-hole and nakedsingularity
spacetimes. Toroidal configurations are allowed only in the spacetimes
admitting existence of stable circular geodesics. The configurations
with equipotential surfaces crossing itself in a cusp allow accretion
(inner cusp) and/or excretion (outer cusp) of matter from the toroidal
configuration.
Authors:
Kučaková, Hana; Stuchlík, Zdeněk; Slaný, Petr;