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An active galactic nucleus (AGN) is a compact region at the centre of a galaxy which has a much higher than normal luminosity over some or all of the electromagnetic spectrum (in ...
http://en.wikipedia.org/wiki/Active_galactic_nucleus Aqueduct PLC is a unique Water Services Management Company. We design, build and manage clean and waste water solutions tailored to your specific business requirements that ...
http://activenucleus.com BL Lacertae object - a variety of active galactic nucleus with a nearly featureless spectrum and rapid strong variability. These may be other kinds of radio-loud AGN seen nearly ...
http://www.astr.ua.edu/keel/agn/text.html galaxy seeds around which galaxies clusters and walls grew may have been
http://dictionary.reference.com/browse/active+galactic+nucle ... Chandra X-ray image of Centaurus A showing a bright central source: the active galactic nucleus suspected of harboring a supermassive black hole
http://www.daviddarling.info/encyclopedia/A/AGN.html What are Active Galactic Nuclei (AGN)? In some galaxies, known as "active galactic nuclei" (AGN), the nucleus (or central core) produces more radiation than the entire rest of the ...
http://heasarc.gsfc.nasa.gov/docs/objects/agn/agntext.html These are radio galaxies with jets pointing directly at us, ejected by the active nucleus at velocities near the speed of light! Optical astronomers find ...
http://imagine.gsfc.nasa.gov/docs/science/know_l2/active_gal ... 8/20/2008 STScI-2008-28 1. Hubble Sees Magnetic Monster in Erupting Galaxy NASA's Hubble Space Telescope has found an answer to a long-standing puzzle by resolving giant but ...
http://hubblesite.org/newscenter/archive/releases/galaxy/qua ... The central portion of the image has been specially processed to highlight variations in the dust distribution near the nucleus. About twice as much dust lies along the east-west ...
http://hubblesite.org/newscenter/archive/releases/2007/40/im ... Active galaxies are thought to contain black holes with a mass 10 8 times that of the Sun, drawing stars and interstellar gas towards them in a process of accretion.
http://encyclopedia.farlex.com/Active+Galactic+Nucleus |
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