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Evidence for a Circumnuclear Atomic Disk and Massive Black Hole in the Hidden Quasar Cygnus A
Published online by Cambridge University Press: 12 April 2016
Abstract
We present evidence for a compact ( ≈ 50pc scale) rotating H ɪ disk or torus in Cygnus A, which may represent part of the structure which hides the quasar nucleus.
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- Copyright © Astronomical Society of the Pacific 1998