Supermassive black holes (BHs) have been found in 85 galaxies by dynamical modeling of
spatially resolved kinematics. The Hubble Space Telescope revolutionized BH research by …

This review covers the main aspects of black hole accretion disk theory. We begin with the
view that one of the main goals of the theory is to better understand the nature of black holes …

We present the first joint analysis of catalogs of radio galaxies and quasars to determine
whether their sky distribution is consistent with the standard ΛCDM model of cosmology …

The radiative cooling timescales at the centers of hot atmospheres surrounding elliptical
galaxies, groups and clusters are much shorter than their ages. Therefore, hot atmospheres …

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 …

" Research into active galactic nuclei (AGN)-the compact, luminous hearts of many galaxies-
is at the forefront of modern astrophysics. Understanding these objects requires extensive …

Radio-loud compact radio sources (CRSs) are characterised by morphological compactness
of the jet structure centred on the active nucleus of the galaxy. Most of the local elliptical …

Radio loud active galactic nuclei (AGNs) are on average 1000 times brighter in the radio
band compared to radio quiet AGNs. We investigate whether this radio loud/quiet dichotomy …

Using a sample of∼ 30,000 quasars from the 7th Data Release of the Sloan Digital Sky
Survey, we explore the range of properties exhibited by high-ionization, broad emission …

We explore the connection between different classes of active galactic nuclei (AGNs) and
the evolution of their host galaxies, by deriving host galaxy properties, clustering, and …