3 papers
astro-ph2000
On the nonthermal X-ray emission in blazar jets
F. M. Rieger, J. G. Kirk, A. Mastichiadis
We consider particle acceleration to high energy via diffusive shock acceleration in a simple, self-consistent shock in jet model for blazars. Electrons are assumed to be accelerat…
astro-ph2000
Implications of a possible 23 day periodicity for binary black hole models in Mkn~501
F. M. Rieger, K. Mannheim
We investigate the implications of a massive binary system in the centre of the gamma-ray blazar Mkn~501 and show that the periodical behaviour recently observed in the TeV and X-r…
astro-ph1999
Particle acceleration by rotating magnetospheres in active galactic nuclei
F. M. Rieger, K. Mannheim
We consider the centrifugal acceleration of charged test particles by rotating magnetospheres which are widely believed to be responsible for the relativistic jet phenomenon in act…