395 citations · 4.4k across the 147 of their papers we have counts for
27 papers · 1 filter
Comparison of the spatial and the angular clustering of X-ray AGN
L. Koutoulidis, M. Plionis, I. Georgantopoulos +4
The angular correlation function is a powerful tool for deriving the clustering properties of AGN and hence the mass of the corresponding dark matter halos in which they reside. Ho…
The XXL Survey: I. Scientific motivations - XMM-Newton observing plan - Follow-up observations and simulation programme
M. Pierre, F. Pacaud, C. Adami +89
We present the XXL Survey, the largest XMM programme totaling some 6.9 Ms to date and involving an international consortium of roughly 100 members. The XXL Survey covers two extrag…
X-ray AGN in the XMM-LSS galaxy clusters: no evidence of AGN suppression
E. Koulouridis, M. Plionis, O. Melnyk +6
We present a study of the overdensity of X-ray selected AGN in 33 galaxy clusters in the XMM-LSS field, up to redhift z=1.05. Previous studies have shown that the presence of X-ray…
A wide search for obscured Active Galactic Nuclei using XMM-Newton and WISE
E. Rovilos, I. Georgantopoulos, A. Akylas +8
We use a combination of the XMM-Newton serendipitous X-ray survey with the optical SDSS, and the infrared WISE all-sky survey in order to check the efficiency of the low X-ray to i…
The XMM-Newton deep survey in the CDF-S VI. Obscured AGN selected as infrared power-law galaxies
N. Castelló-Mor, F. J. Carrera, A. Alonso-Herrero +7
Accretion onto SMBH is believed to occur mostly in obscured AGN. Such objects are proving rather elusive in surveys of distant galaxies, including those at X-ray energies. Our main…
The XMM deep survey in the CDFS IV. Candidate Compton-thick AGN
I. Georgantopoulos, A. Comastri, C. Vignali +15
The Chandra Deep Field is the region of the sky with the highest concentration of X-ray data available: 4Ms of Chandra and 3Ms of XMM data, allowing excellent quality spectra to be…