activity
19982004
most citedMulti-wavelength study of a sample of nearby Seyfert galaxies

1 citations · 1 across the 2 of their papers we have counts for

collaborators

6 papers

astro-ph20041 cited

Multi-wavelength study of a sample of nearby Seyfert galaxies

F. Panessa, L. Bassani, M. Cappi +2

One of the least biased complete Seyfert sample available to date has been considered to perform an X-ray survey using the capabilities of XMM-Newton and Chandra satellites. The X-…

astro-ph2003

The Ultra Luminous Infrared Galaxy MKN 231: New clues from BeppoSAX and XMM-Newton

V. Braito, R. Della Ceca, E. Piconcelli +11

We present BeppoSAX and XMM-Newton observations of MKN 231. These observations and in particular the BeppoSAX PDS data allowed us to unveil, for the first time, the highly absorbed…

astro-ph1999

BeppoSAX unveils the nuclear component in NGC 6240

P. Vignati, S. Molendi, G. Matt +10

The direct nuclear X-ray emission of the ultraluminous IRAS galaxy NGC 6240 has been observed for the first time by BeppoSAX. It is seen through an absorber with N_H=2*10^{24} cm^{…

astro-ph1998

A Simultaneous ASCA and RXTE Long Look at the Seyfert 1 Galaxy MCG--6-30-15

J. C. Lee, A. C. Fabian, K. Iwasawa +2

We report on a joint RXTE and ASCA observation spanning 400~ks of the Seyfert 1 galaxy MCG--6-30-15. The low energy coverage of ASCA coupled with the high energy coverage of…

astro-ph1998

One more surprise from the Circinus Galaxy: BeppoSAX discovery of a transmission component in hard X-rays

G. Matt, M. Guainazzi, R. Maiolino +11

The Circinus Galaxy has been observed, for the first time above 10 keV, by BeppoSAX. An excess emission above the extrapolation of the best fit 0.1--10 keV spectrum is apparent in…

astro-ph1998

The changing X-ray period of the Seyfert galaxy IRAS18325-5926

A. C. Fabian, J. C. Lee, W. N. Brandt +3

We report on two observations of the Seyfert galaxy IRAS18325-5926 made in 1997 December and 1998 February with the Rossi X-ray Timing Explorer (RXTE). We find evidence for periodi…