2 papers
astro-ph1999
Black holes in sources with a periodic component of variability
V. Karas, O. Semerak, F. de Felice
Three recent papers have been collected here, discussing the possibility and properties of periodic modulation of a signal from accreting black holes surrounded by orbiting clumps…
astro-ph1999
Pseudo-Newtonian models of a rotating black hole field
O. Semerak, V. Karas
Several topics are discussed regarding the pseudo-Newtonian models of the gravitational field around rotating black holes