130 citations · 372 across the 21 of their papers we have counts for
7 papers · 1 filter
New water masers in Seyfert and FIR bright galaxies. II
P. Castangia, A. Tarchi, C. Henkel +1
Recently, a relationship between the water maser detection rate and far infrared (FIR) flux density has been found as a result of a 22 GHz maser survey in a sample comprised of nor…
High redshift X-ray galaxy clusters. I. The impact of point sources on the cluster properties
M. Branchesi, I. M. Gioia, C. Fanti +1
The current generation of X-ray observatories like Chandra allows studies with very fine spatial details. It is now possible to resolve X-ray point sources projected into the clust…
High redshift X-ray galaxy clusters. II. The L_X-T relationship revisited
M. Branchesi, I. M. Gioia, C. Fanti +1
In this paper we re-visit the observational relation between X-ray luminosity and temperature for high-z galaxy clusters and compare it with the local L_X-T and with theoretical mo…
The obscured X-ray source population in the HELLAS2XMM survey: the Spitzer view
C. Vignali, Francesca Pozzi, A. Comastri +9
Recent X-ray surveys have provided a large number of high-luminosity, obscured Active Galactic Nuclei (AGN), the so-called Type 2 quasars. Despite the large amount of multi-wavelen…
Constraints on a strong X-ray flare in the Seyfert galaxy MCG-6-30-15
R. W. Goosmann, B. Czerny, V. Karas +3
We discuss implications of a strong flare event observed in the Seyfert galaxy MCG-6-30-15 assuming that the emission is due to localized magnetic reconnection. We conduct detailed…
Modeling time delays in the X-ray spectrum of the Seyfert galaxy MCG-6-30-15
R. W. Goosmann, B. Czerny, V. Karas +1
We propose a reflection model of the time delays detected during an exceptionally bright, single flare in MCG-6-30-15. We consider a scenario in which the delays of the hard X-rays…