BeppoSAX observations of the Seyfert 1 Galaxy NGC 3516

We present the results of two observations of the bright Seyfert 1 galaxy NGC 3516, obtained with BeppoSAX in 1996 November and 1997 March. Useful signal is detected between 0.2 and 60 keV, allowing for the first time the simultaneous observation of all main spectral features. The source was brighter by a factor 2 at the second epoch of observation. Both spectra present a strong Fe Kalpha line, and a reflection hump at high energy. An absorption edge at 0.8 keV is visible in the later spectrum, but not in the earlier one, indicating that this feature is strongly variable.Comment: to appear in : The Active X-ray Sky: Results from BeppoSAX and Rossi-XTE, Nuclear Physics B Proceedings Supplements, L. Scarsi, H. Bradt, P. Giommi and F. Fiore (eds.), Elsevier Science B.V. 4 pages LateX and 6 ps figures, using espcrc2 and epsfi

Probing the extremes of Seyfert activity: BeppoSAX observations of Narrow-Line Seyfert 1 galaxies

Results are presented for the first year of observations of a selected sample of Narrow-Line Seyfert 1 galaxies (Ton S 180, RE J1034+396, Ark 564) obtained with the imaging instruments onboard BeppoSAX. These are the first simultaneous broad band (0.1--10 keV) spectra so far obtained for this class of objects.Comment: Contributed Talk, to appear in : The Active X-ray Sky: Results from BeppoSAX and Rossi-XTE, Nuclear Physics B Proceedings Supplements, L. Scarsi, H. Bradt, P. Giommi and F. Fiore (eds.), Elsevier Science B.V. 6 pages LateX and 8 ps figures, using espcrc2 and epsfi

Broad emission lines in active galactic nuclei. I - an atlas of H-alpha and H-beta profiles

Wetensch. publicati

Broad emission lines in active galactic nuclei. I - an atlas of H-alpha and H-beta profiles

Wetensch. publicati

Broad emission line variability in the Seyfert 1 galaxies NGC 5548 and NGC 3783

Wetensch. publicatieFaculteit der Wiskunde en Natuurwetenschappe

High spectral-resolution CO observations of NGC 6814 and NGC 7793

Wetensch. publicatieFaculteit der Wiskunde en Natuurwetenschappe

Emission line variation in the Seyfert galaxy Fairall 9 and the presence of broad forbidden O III emission

Wetensch. publicatieFaculteit der Wiskunde en Natuurwetenschappe