Active galactic nuclei (AGN) are energetic astrophysical sources powered by accretion onto
supermassive black holes in galaxies, and present unique observational signatures that …

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 …

Characterizing the prevalence and properties of faint active galactic nuclei (AGNs) in the
early Universe is key for understanding the formation of supermassive black holes (SMBHs) …

Neutral-atomic and molecular outflows are a common occurrence in galaxies, near and far.
They operate over the full extent of their galaxy hosts, from the innermost regions of galactic …

The material surrounding accreting supermassive black holes connects the active galactic
nucleus with its host galaxy and, besides being responsible for feeding the black hole …

Abstract Mid-infrared (mid-IR) observations are powerful in identifying heavily obscured
active galactic nuclei (AGN) that have weak emission in other wavelengths. Data from the …

We review results from cosmic X-ray surveys of active galactic nuclei (AGNs) over the past
≈ 15≈ 15 years that have dramatically improved our understanding of growing …

Mergers of galaxies are thought to cause significant gas inflows to the inner parsecs, which
can activate rapid accretion on to supermassive black holes (SMBHs), giving rise to active …

We study the relation between obscuration and supermassive black hole (SMBH) accretion
using a large sample of hard X-ray selected active galactic nuclei (AGNs). We find a strong …

Black hole feedback is now a standard component of galaxy formation models. These
models predict that the impact of black hole activity on its host galaxy likely peaked at z= 2 …