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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-ph2000
Magnetic field strength from peaked synchrotron spectra
Christian Hettlage, Karl Mannheim
Key diagnostics of non-thermal plasmas, such as the position of the synchrotron self-absorption turnover or the Faraday rotation optical depth, depend crucially on the unobserved l…