Relativistic reflection features are commonly observed in the X-ray spectra of accreting black
holes. In the presence of high quality data and with the correct astrophysical model, X-ray …

ABSTRACT X-ray reflection models are used to constrain the properties of the accretion
disk, such as the degree of ionization of the gas and the elemental abundances. In …

According to the general-relativistic no-hair theorem, astrophysical black holes depend only
on their masses and spins and are uniquely described by the Kerr metric. Mass and spin are …

We present a new and complete library of synthetic spectra for modeling the component of
emission that is reflected from an illuminated accretion disk. The spectra were computed …

I review the current status of X-ray reflection (aka broad iron line) based black hole spin
measurements. This is a powerful technique that allows us to measure robust black hole …

In many active galaxies, the X-ray reflection features from the innermost regions of the
accretion disc are relativistically distorted. This distortion allows us to measure parameters of …

We present the first results from the ongoing, intensive, multiwavelength monitoring program
of the luminous Seyfert 1 galaxy Mrk 817. While this active galactic nucleus was, in part …

X-ray irradiation of the accretion disc leads to strong reflection features, which are then
broadened and distorted by relativistic effects. We present a detailed, general relativistic …

We present an X-ray spectral analysis of a large sample of 25 'bare'active galactic nuclei
(AGN), sources with little or no complicating intrinsic absorption, observed with Suzaku. Our …

The illumination pattern (or emissivity profile) of the accretion disc due to the reflection of X-
rays in active galactic nucleus can be understood in terms of relativistic effects on the rays …