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AGNActive Galactic Nucleus
AGNAgain (Amateur Radio)
AGNAgencia Guatemalteca de Noticias (Spanish: Guatemalan News Agency)
AGNAnalog Gain
AGNApplication Group Name
AGNAcute Glomerulonephritis
AGNAccountants Global Network
AGNArticles for the Government of the Navy
AGNAir Gabon (ICAO code)
AGNAscension Gaming Network, Inc.
AGNAcid Gaming Network
AGNAsociación Guatemalteca de Nefrología (Spanish: Guatemalan Association of Nephrology)
AGNAbyssal Gaming Network
AGNAerojet General Nucleonics
AGNArmageddon Games Network (game developer)
AGNArmageddon Games Network
AGNAgence Geneviève Naturisme (French naturist real estate agency)
AGNAnwendungen der Informatik In Geistes- und Naturwissenschaften (Informatics, University Of Hamburg)
AGNAngry Gamer Network
AGNAustralian Gaming Network
AGNAutomatically Generated Number
AGNArts Graphiques Numériques (French: Digital Graphic Arts)
AGNAssis Global Networks (Japanese anime studio)
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References in periodicals archive ?
(2009) The space density of Compton-thick active galactic nucleus and the X-ray background.
The resolution at which they were able to observe this highly luminescent active galactic nucleus (AGN) has given them direct confirmation of how mass accretes onto black holes in centres of galaxies.
NGC 5548 is a Seyfert galaxy, one of a class that harbors what astronomers call an "active galactic nucleus." Such a galaxy contains an extremely compact object--possibly a massive black hole--that feeds on the rest of the galaxy.
However, in the case of Was 49, NASA's Nuclear Spectroscopic Telescope Array (NuSTAR) mission showed it was the smaller Was 49b that had an active galactic nucleus, and that the supermassive black hole at its center was about 2 percent of the galaxy's own mass, much larger than galaxies of comparable size.
"Theoretical models show that a merger is a great way to trigger an active galactic nucleus, because it funnels a lot of gas to the center of the galaxy.
According to Begelman's theoretical analysis, each of these disk configurations can develop out of different initial conditions, and it may be the disk configuration that determines what kind of active galactic nucleus we see in a given instance.
One possible explanation, outlined in ( a study  accepted for publication in the Astrophysical Journal, could be outflows from an active galactic nucleus (AGN) - which is itself being powered by a supermassive black hole.
The nearest active galactic nucleus is the one 12 million light-years away in the peculiar giant galaxy NGC 5128, also known as Centaurus A from the early days of radio astronomy.
Washington, July 14 (ANI): It has long been a mystery that where the material comes from to activate a sleeping supermassive black hole and trigger violent outbursts at a galaxy's centre, so that it then becomes an active galactic nucleus.
At a distance of just over 11 million light-years, Centaurus A contains the closest active galactic nucleus to Earth.
Such jets are the hallmark of an active galactic nucleus, or mini-quasar.