Astronomy and Astrophysics – Astrophysics
Scientific paper
1997-12-22
Astronomy and Astrophysics
Astrophysics
to appear in : The Active X-ray Sky: Results from BeppoSAX and Rossi-XTE, Nuclear Physics B Proceedings Supplements, L. Scarsi
Scientific paper
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.
Comastri Andrea
Mathur Savita
O'Brien Thomas P.
Stirpe Giovanna M.
Wilkes Belinda J.
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