998 citations · 1.3k across the 16 of their papers we have counts for
16 papers
The HELLAS2XMM survey.VIII. Optical identifications of the extended sample
F. Cocchia, F. Fiore, C. Vignali +14
(Abridged) We present the results of the photometric and spectroscopic identification of 110 hard X-ray selected sources (6e-15<F(2-10 keV)<4e-14 cgs) from 5 additional XMM-Newton…
Clusters outskirts at X-ray wavelengths: current status and future prospects
Silvano Molendi
A solid observational characterization of cluster regions around the virial radius would allow us to improve considerably our understanding of the physics of galaxy clusters as a w…
Optical identification of sources from the HELLAS2XMM survey
F. Fiore, G. Matt, F. La Franca +10
We present preliminary results on the optical identifications of sources from the High Energy Large Area Survey performed with XMM-Newton (HELLAS2XMM). This survey covers about 3 s…
The central region of M31 observed with XMM-Newton. II. Variability of the individual sources
J. P. Osborne, K. N. Borozdin, S. P. Trudolyubov +13
We present the results of a study of the variability of X-ray sources in the central 30' of the nearby Andromeda Galaxy (M31) based on XMM Performance Verification observations. Tw…
The BeppoSAX High Energy Large Area Survey HELLAS, III: testing synthesis models for the X-ray background
A. Comastri, F. Fiore, C. Vignali +3
The BeppoSAX High Energy Large Area Survey (HELLAS) has surveyed several tens of square degrees of the sky in the 5--10 keV band down to a flux of about 5 10^-14 erg cm-2 s-1. The…
The BeppoSAX High Energy Large Area Survey HELLAS, II: Number counts and X-ray spectral properties
F. Fiore, P. Giommi, C. Vignali +7
The BeppoSAX High Energy Large Area Survey (HELLAS) has surveyed about 85 deg^2 of sky in the 5-10 keV band down to a flux of 4-5 10^-14 erg cm-2 s-1. The source surface density of…