Unified theories of active galactic nuclei: a hard X-ray sample of Seyfert 2 galaxies | Zendy

D. A. Smith | Zendy; Chris Done | Zendy

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Unified theories of active galactic nuclei: a hard X-ray sample of Seyfert 2 galaxies

Author(s) -

D. A. Smith,

Chris Done

Publication year - 1996

Publication title -

monthly notices of the royal astronomical society

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.058

H-Index - 383

eISSN - 1365-8711

pISSN - 0035-8711

DOI - 10.1093/mnras/280.2.355

Subject(s) - physics , astrophysics , active galactic nucleus , galaxy , spectral line , ionization , absorption (acoustics) , quasar , reflection (computer programming) , accretion (finance) , photon , photoionization , astronomy , optics , ion , quantum mechanics , computer science , programming language

We have re-analysed the Ginga 2–18 keV X-ray observations of Seyfert 2 galaxies, and find that their mean spectrum can be described by a power law of index ± ∼ 1, reflection from an optically thick accretion disc and/or molecular torus, and absorption from cold material. These objects then have a mean intrinsic spectrum similar to that of Seyfert 1s, and so support the predictions of orientation-d...

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