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arxiv: astro-ph/9707065 · v1 · submitted 1997-07-04 · 🌌 astro-ph

Hard X--ray detection of NGC 1068 with BeppoSAX

G.Matt , M.Guainazzi , F.Frontera , L.Bassani , W.N.Brandt , A.C.Fabian , F.Fiore , F.Haardt
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K.Iwasawa R.Maiolino G.Malaguti A.Marconi A.Matteuzzi S.Molendi G.C.Perola S.Piraino L.Piro
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classification 🌌 astro-ph
keywords detectionabovebepposaxhardneutralx--rayarchetypalasca
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We report on the first detection above ~10 keV of the archetypal Compton-thick Seyfert 2 galaxy NGC 1068. This detection, obtained with the PDS instrument onboard BeppoSAX in the 20-100 keV range, confirms the hardness of the X--ray spectrum above a few keV (as indicated by ASCA observations and supports models envisaging a mixture of both neutral and ionized reflections of an otherwise invisible nuclear continuum, the neutral reflection component being the dominant one in hard X-rays.

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