One more surprise from the Circinus Galaxy: BeppoSAX discovery of a transmission component in hard X-rays

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dc.creatorMatt, G.
dc.creatorGuainazzi, M.
dc.creatorMaiolino, R.
dc.creatorMolendi, S.
dc.creatorPerola, G. C.
dc.creatorAntonelli, L. A.
dc.creatorBassani, L.
dc.creatorBrandt, W. N.
dc.creatorFabian, A. C.
dc.creatorFiore, F.
dc.creatorIwasawa, K.
dc.creatorMalaguti, G.
dc.creatorMarconi, A.
dc.creatorPoutanen, J.
dc.date1998-11-19
dc.date.accessioned2026-07-07T02:29:11Z
dc.date.available2026-07-07T02:29:11Z
dc.descriptionThe 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.
dc.description4 pages. Accepted for publication in Astronomy & Astrophysics Letters
dc.identifierhttps://arxiv.org/abs/astro-ph/9811301
dc.identifierhttp://arxiv.org/abs/astro-ph/9811301
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/13371
dc.subjectAstrophysics
dc.titleOne more surprise from the Circinus Galaxy: BeppoSAX discovery of a transmission component in hard X-rays
dc.typetext

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