The nucleus of Centaurus A


The nucleus of Centaurus A contains a very compact radio component, and has recently been discovered to be a variable X-ray source. We argue that these phenomena arise from accretion on to a massive black hole. Possible implications for galactic nuclei in general are briefly discussed.

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Fabian, A., Maccagni, D., Rees, M. et al. The nucleus of Centaurus A. Nature 260, 683–685 (1976).

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