217 citations · 1k across the 20 of their papers we have counts for
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Transmission- to reflection-dominated transition in Seyfert 2 galaxies: the XMM-Newton view
M. Guainazzi, P. Rodriguez-Pascual, A. C. Fabian +3
In this paper we present the current status of a XMM-Newton program to observe an optically-defined, complete and unbiased sample of Compton-thick Seyfert 2 galaxies. The main goal…
Chandra and XMM-Newton observations of Tololo 0109-383
G. Matt, S. Bianchi, M. Guainazzi +4
We present and discuss Chandra and XMM-Newton observations of the Seyfert 2 galaxy and Compton-thick absorbed source, Tololo~0109-383. The hard X-ray emission (i.e. above 2 k…
Compton reflection and iron fluorescence in BeppoSAX observations of Seyfert type 1 galaxies
G. C. Perola, G. Matt, M. Cappi +5
A sample of nine bright Seyfert 1 and NELG type galaxies, observed with BeppoSAX, is analyzed to assess on a truly broad band basis (0.1-200 keV) the issue of the spectral contribu…
The Phoenix galaxy: UGC4203 re-birth from its ashes?
M. Guainazzi, G. Matt, F. Fiore +1
We report on a dramatic transition between a Compton-thick, reflection-dominated state and a Compton-thin state in the Seyfert 2 galaxy UGC4203, discovered by comparing a recent (M…
The BeppoSAX High Energy Large Area Survey -V. The nature of the hard X-ray source populations and its evolution
F. La Franca, F. Fiore, C. Vignali +7
We present optical spectroscopic identifications of hard X-ray (5-10 keV) selected sources belonging to the HELLAS sample obtained with BeppoSAX down to a 5-10 keV flux limit of f_…
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…