3 papers
astro-ph2000
Magnetic fields around black holes
Z. Budinova, M. Dovciak, V. Karas +1
The electromagnetic field near a rotating black hole is being explored in educational style here. By employing analytic solutions for electrovacuum fields, we plot the surfaces of…
astro-ph1996
Accretion disks around Kerr black holes: vertical equilibrium reviseted
M. A. Abramowicz, A. Lanza, M. J. Percival
We re-derive the equation for vertical hydrodynamical equilibrium of stationary thin and slim accretion disks in the Kerr spacetime. All the previous derivations have been unsatisf…
astro-ph1993
Similarity of the variability patterns in the Exosat and Ginga folded light curves of the Seyfert galaxy NGC 6814
M. A. Abramowicz, G. Bao, V. Karas +1
The Seyfert galaxy NGC 6814 is known to show periodic variation of its X-ray luminosity. We found that the sequences of peaks (variability patterns) in the folded X-ray light curve…