2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/13371The 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 the PDS data. The most likely explanation is that we are observing the nucleus through a column density of about 4x10**24 cm-2, i.e. large enough to completely block the radiation below 10 keV but small enough to permit partial transmission above this energy.4 pages. Accepted for publication in Astronomy & Astrophysics LettersAstrophysicsOne more surprise from the Circinus Galaxy: BeppoSAX discovery of a transmission component in hard X-raystext