activity
20102026
most citedX-ray absorption, nuclear infrared emission and dust covering factors of AGN: testing Unification Schemes

56 citations · 162 across the 12 of their papers we have counts for

collaborators

12 papers

astro-ph.GA2026

The incidence and star-formation properties of X-ray active galactic nuclei across the star-forming main sequence in DESI-eRASS1: the role of host-galaxy morphology

G. Mountrichas, F. J. Carrera, V. A. Masoura +3

The interplay between star formation and supermassive black-hole growth is central to galaxy evolution, but how host-galaxy morphology regulates star-formation enhancement and AGN…

astro-ph.HE2025★ 2 cited

Harnessing the XMM-Newton data: X-ray spectral modelling of 4XMM-DR11 detections and 4XMM-DR11s sources

A. Viitanen, G. Mountrichas, H. Stiele +13

The XMM-Newton X-ray observatory has played a prominent role in astrophysics, conducting precise and thorough observations of the X-ray sky for the past two decades. The most recen…

astro-ph.GA2025

Fueling, Evolution, and Diversity of AGN in Dwarf Galaxies: Insights from Star Formation and Black Hole Scaling Relations

G. Mountrichas, M. Siudek, F. J. Carrera

We investigate the star formation activity and black hole scaling relations in a sample of 1451 AGN hosted by dwarf galaxies at redshift 0.5 to 0.9, drawn from the VIPERS survey. T…

astro-ph.GA2025★ 3 cited

The incidence of X-ray AGN and non-AGN galaxies in the far-infrared: insights into host galaxy properties and AGN obscuration

G. Mountrichas, F. J. Carrera, I. Georgantopoulos +3

We investigate the far-infrared (far-IR) incidence of X-ray-selected active galactic nuclei (AGN) and non-AGN galaxies as a function of stellar mass (M), star formation rate (S…

astro-ph.GA2025

Identification of high-redshift X-ray active galactic nuclei in the 4XMM-DR11 serendipitous catalogue using DES data: Comparative analysis with optically-selected QSOs

E. Pouliasis, A. Ruiz, I. Georgantopoulos +8

X-rays provide a robust method in identifying AGN. However, in the high-redshift Universe, their space density is relatively low, and, in combination with the small areas covered b…

astro-ph.GA2024★ 5 cited

Extinction and AGN over host galaxy contrast effects on the optical spectroscopic classification of AGN

L. Barquín-González, S. Mateos, F. J. Carrera +9

The optical spectroscopic classification of active galactic nuclei (AGN) into type 1 and type 2 can be understood in the frame of the AGN unification models. However, it remains un…

astro-ph.GA2024★ 1 cited

Comparative analysis of the SFR of AGN and non-AGN galaxies, as a function of stellar mass, AGN power, cosmic time and obscuration

G. Mountrichas, V. A. Masoura, A. Corral +1

This study involves a comparative analysis of the SFRs of AGN and non-AGN galaxies and of the SFRs of type 1 and 2 AGN. To carry out this investigation, we assembled a dataset cons…

astro-ph.GA2023

The link among X-ray spectral properties, AGN structure and the host galaxy

G. Mountrichas, A. Viitanen, F. J. Carrera +5

In this work, we compare the SMBH and host galaxy properties of X-ray obscured and unobscured AGN. For that purpose, we use X-ray detected AGN in the 4XMM-DR11 catalo…

astro-ph.HE2017★ 53 cited

Survival of the obscuring torus in the most powerful active galactic nuclei

S. Mateos, F. J. Carrera, X. Barcons +7

Dedicated searches generally find a decreasing fraction of obscured Active Galactic Nuclei (AGN) with increasing AGN luminosity. This has often been interpreted as evidence for a d…

astro-ph.GA2016★ 56 cited

X-ray absorption, nuclear infrared emission and dust covering factors of AGN: testing Unification Schemes

S. Mateos, F. J. Carrera, A. Alonso-Herrero +9

We present the distributions of geometrical covering factors of active galactic nuclei (AGNs) dusty tori (f2) using an X-ray selected complete sample of 227 AGN drawn from the Brig…

astro-ph.CO2012★ 17 cited

The X-ray luminous galaxies optically classified as star forming are mostly narrow line Seyfert 1s

N. Castelló-Mor, X. Barcons, L. Ballo +3

We aim to characterize the nature of galaxies whose optical emission line diagnostics are consistent with star formation, but whose X-ray properties strongly point towards the pres…

astro-ph.CO2010★ 25 cited

Spectral Energy Distribution of Hyper-Luminous Infrared Galaxies

A. Ruiz, G. Miniutti, F. Panessa +1

The relationship between star formation and super-massive black hole growth is central to our understanding of galaxy formation and evolution. Hyper-Luminous Infrared Galaxies (HLI…