193 citations · 840 across the 21 of their papers we have counts for
4 papers · 1 filter
Soft X-ray spectroscopy of Compton-thick Seyfert 2 galaxies with BeppoSAX
M. Guainazzi, G. Matt, L. A. Antonelli +7
We present a X-ray spectroscopic study of the bright Compton-thick Seyfert 2s NGC1068 and the Circinus Galaxy, performed with BeppoSAX. Matt et al. (1997 and 1998) interpreted the…
Hard X-ray emission from elliptical galaxies
S. W. Allen, T. Di Matteo, A. C. Fabian
We report the detection of hard X-ray emission components in the spectra of six nearby, giant elliptical galaxies observed with the ASCA satellite. The systems studied, which exhib…
The optical variability of the narrow line Seyfert 1 galaxy IRAS 13224-3809
A. J. Young, C. S. Crawford, A. C. Fabian +2
We report on a short optical monitoring programme of the narrow-line Seyfert 1 Galaxy IRAS 13224-3809. Previous X-ray observations of this object have shown persistent giant variab…
BeppoSAX observations of Mkn 3: Piercing through the torus of a Seyfert 2 galaxy
M. Cappi, L. Bassani, A. Comastri +15
A new BeppoSAX broad-band (0.6-150 keV) spectrum of the Seyfert 2 galaxy Mkn 3 is presented. The spectrum provides a direct measurement of a large, neutral column of gas with Nh~10…