In this work, our aim is to investigate the star formation rate (SFR) of the host galaxies of
active galactic nuclei (AGNs) in the early Universe. To this end, we constructed a sample of …

Context. There is compelling evidence that active galactic nuclei (AGNs) in high-density
regions have undergone a different evolution than their counterparts in the field, indicating …

The Seyfert galaxy NGC 2639 was known to exhibit three episodes of active galactic nuclei
(AGN) jet/lobe activity. We present here the upgraded Giant Metrewave Radio Telescope …

Context. We investigate the possible presence of active galactic nuclei (AGN) in dwarf
galaxies and other nearby galaxies to identify candidates for follow-up confirmation and …

The origin of the unification model for active galactic nuclei (AGN) was the detection of broad
hydrogen recombination lines in the optical polarized spectrum of the Seyfert 2 galaxy (Sy2) …

We present a study of the distribution of X-ray detected active galactic nuclei (AGN) in the
five most massive,, and distant, z∼ 1, galaxy clusters in the Planck and South Pole …

Context. We present the results of a study of the active galactic nucleus (AGN) density in a
homogeneous and well-studied sample of 167 bona fide X-ray galaxy clusters (0.1< z< 0.5) …

We investigated the gas obscuration and host galaxy properties of active galactic nuclei
(AGNs) during the peak of cosmic accretion growth of supermassive black holes at redshift …

Aims. The main purpose of this study is to investigate aspects regarding the validity of the
active galactic nucleus (AGN) unification paradigm (UP). In particular, we focus on the AGN …

Active galactic nuclei (AGNs) are extremely powerful cosmic objects, driven by accretion of
hot gas upon super-massive black holes. The zoo of AGN classes is divided into two major …