active galactic nucleus

(redirected from Active galaxy nucleus)
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Related to Active galaxy nucleus: Active galactic nuclei

active galactic nucleus

n.
A galactic nucleus that emits more radiation than can be accounted for solely by light from the stars it contains.
References in periodicals archive ?
As with other quasars, we're seeing light from a hot accretion disk of gas spiraling and cramming toward the supermassive black hole in an active galaxy nucleus.