4 papers · 1 filter
The Accretion Geometry in Radio-Loud Active Galaxies
D. R. Ballantyne
We review the latest attempts to determine the accretion geometry in radio-loud active galactic nuclei (AGN). These objects, which comprise ~10-20% of the AGN population, produce p…
Ionized Disc Models of MCG-6-30-15
D. R. Ballantyne, A. C. Fabian, S. Vaughan
Ionized reflection is one of the possible mechanisms proposed to explain the small short-timescale variability of the MCG-6-30-15 Fe K line. In this contribution, we show fits of t…
Reflection Spectra from Photoionized Accretion Discs
D. R. Ballantyne, R. R. Ross, A. C. Fabian
We review recent progress on the modeling and use of reflection spectra from irradiated and ionized accretion discs. On the computational side, calculations of reflection spectra f…
Ionized Iron Lines in X-ray Reflection Spectra
D. R. Ballantyne, R. R. Ross, A. C. Fabian
We present results from new calculations of the X-ray reflection spectrum from ionized accretion discs. These computations improve on our previous models by including the condition…