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 …

We study the first year of the eBOSS quasar sample in the redshift range 0.9< z< 2.2 which
includes 68,772 homogeneously selected quasars. We show that the main source of …

Which galaxies in the general population turn into active galactic nuclei (AGNs) is a
keystone of galaxy formation and evolution. Thanks to SRG/eROSITA's contiguous 140 …

We present an analysis of the mid-infrared Wide-field Infrared Survey Explorer (WISE)
sources seen within the equatorial GAMA G12 field, located in the North Galactic Cap. Our …

Observations in the local universe show a tight correlation between the masses of
supermassive black holes (SMBHs; M BH) and host-galaxy bulges (M bulge), suggesting a …

We characterize the environments of local accreting supermassive black holes by
measuring the clustering of AGNs in the Swift/BAT Spectroscopic Survey (BASS). With 548 …

We use 3213 active galactic nuclei (AGNs) from the XMM-XXL northern field to investigate
the relation of AGN type with host galaxy properties. Applying a Bayesian method, we derive …

We present a comparative study of X-ray and IR active galactic nuclei (AGNs) at z≈ 2 to
highlight the important AGN selection effects on the distributions of host-galaxy properties …

We use X-ray active galactic nuclei (AGN) observed by the Chandra X-ray Observatory
within the 9.3 deg 2 Boötes field of the NDWFS to study whether there is a correlation …

Obscuration in quasars may arise from steep viewing angles along the dusty torus, or
instead may represent a distinct phase of supermassive black hole growth. We test these …