Hard X-ray (≥ 10 keV) observations of active galactic nuclei (AGNs) can shed light on some
of the most obscured episodes of accretion onto supermassive black holes. The 70-month …

The central engines of both type 1 and type 2 active galactic nuclei are thought to harbour a
toroidal structure that absorbs and reprocesses high-energy photons from the central X-ray …

It is well accepted that unabsorbed as well as absorbed active galactic nuclei (AGNs) are
needed to explain the nature and shape of the Cosmic X-ray background (CXB), even if the …

We present an updated mid-infrared (MIR) versus X-ray correlation for the local active
galactic nuclei (AGN) population based on the high angular resolution 12 and 18μm …

ABSTRACT The 9-month Swift Burst Alert Telescope (BAT) catalog provides the first
unbiased (NH< 10 24 cm− 2) look at local (< z>= 0.03) active galactic nuclei (AGNs). In this …

We present the results of the analysis of the first 9 months of data of the Swift BAT survey of
AGNs in the 14-195 keV band. Using archival X-ray data or follow-up Swift XRT …

We use data from the Sloan Digital Sky Survey and visual classifications of morphology from
the Galaxy Zoo project to study black hole growth in the nearby universe (z< 0.05) and to …

We use three years of data from the Swift/Burst Alert Telescope (BAT) survey to select a
complete sample of X-ray blazars above 15 keV. This sample comprises 26 flat-spectrum …

We present an exhaustive methodology for fitting Compton-thick X-ray reprocessor models
to obscured active galactic nuclei (AGNs) and for interpreting the results. We focus on the …

We present the catalog of sources detected in the first 22 months of data from the hard X-ray
survey (14–195 keV) conducted with the Burst Alert Telescope (BAT) coded mask imager on …