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most citedThe HELLAS2XMM 1dF survey: on the nature of high X-ray to optical flux ratio sources

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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…