271 citations · 4.6k across the 192 of their papers we have counts for
Showing 2011 · astro-ph.HEShow all
3 papers · 2 filters
astro-ph.HE2011★ 6 cited
On the efficiency of the Blandford-Znajek mechanism for low angular momentum relativistic accretion
Tapas K. Das, Bozena Czerny
Blandford-Znajek (BZ) mechanism has usually been studied in the literature for accretion with considerably high angular momentum leading either to the formation of a cold Keplerian…
astro-ph.HE2011★ 7 cited
The flare model for X-ray variability of NGC 4258
T. Trzesniewski, B. Czerny, V. Karas +4
We study the variability mechanism of active galactic nuclei (AGN) within the framework of the flare model. To this end we examine the case of Seyfert/LINER galaxy NGC 4258, which…
astro-ph.HE2011★ 75 cited
On different types of instabilities in black hole accretion discs. Implications for X-ray binaries and AGN
Agnieszka Janiuk, Bożena Czerny
We discuss two important instability mechanisms that may lead to the limit-cycle oscillations of the luminosity of the accretion disks around compact objects: ionization instabilit…