Active galactic nuclei (AGN) are powered by the accretion of material onto a supermassive
black hole (SMBH) and are among the most luminous objects in the Universe. However, the …

Active galactic nuclei (AGNs) are known to show flux variability over all observable
timescales and across the entire electromagnetic spectrum. Over the past decade, a growing …

Context. The AGN bolometric correction is a key element for understanding black hole (BH)
demographics and computing accurate BH accretion histories from AGN luminosities …

We present the active galactic nucleus (AGN) catalog and optical spectroscopy for the
second data release of the Swift BAT AGN Spectroscopic Survey (BASS DR2). With this DR2 …

ABSTRACT Code Investigating GALaxy Emission (cigale) is a powerful multiwavelength
spectral energy distribution (SED) fitting code for extragalactic studies. However, the current …

We present a new catalogue of∼ 2400 optically selected quasars with spectroscopic
redshifts and X-ray observations from either Chandra or XMM–Newton. The sample can be …

Recent multimessenger studies have provided evidence for high-energy neutrino sources
that are opaque to GeV–TeV gamma rays. We present model-independent studies on the …

The majority of the accreting supermassive black holes in the Universe are obscured by
large columns of gas and dust,,. The location and evolution of this obscuring material have …

We present the first results of the Galaxy Activity, Torus, and Outflow Survey (GATOS), a
project aimed at understanding the properties of the dusty molecular tori and their …

We present the drastic transformation of the X-ray properties of the active galactic nucleus
(AGN) 1ES 1927+ 654, following a changing-look event. After the optical/ultraviolet outburst …