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radio galaxy
(redirected from Radio galaxies)

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radio galaxy
n.
A galaxy emitting large amounts of radio energy.
radio galaxy
n
(Astronomy) a galaxy that is a strong emitter of radio waves
radio galaxy
A galaxy that emits large amounts of radio energy. Radio galaxies are typically elliptical galaxies with large symmetrical lobes. The centers of radio galaxies are active galactic nuclei, and many expel one or more jets of matter directly from the nucleus that can be observed in the visible spectrum and extend for millions of light-years. See also Seyfert galaxy.
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Compton showed us that two classes of active galaxies emitted gamma rays - blazars and radio galaxies," said Luigi Foschini at Brera Observatory of the National Institute for Astrophysics in Merate, Italy.
Gamma rays show black hole drives oppositely directed particle jets by Asian News International
[ILLUSTRATION OMITTED] When he examined the VLA images, however, Rudnick counted 30 percent to 40 percent fewer radio galaxies than normal in the direction of the cold spot.
A whole lot of nothing by Sohn, Emily / Science News for Kids
Their report, which will appear in Astrophysical Journal Letters, suggests that radio galaxies may serve as beacons for finding other primordial groupings of galaxies.
Long ago and far away: astronomers find distant galaxy, early ... by Cowen, R. / Science News
 
 
 
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