Sentences with phrase «extremely luminous objects»
Astronomers suggest that nearly all galaxies may harbor super-massive black holes that once powered quasars (extremely luminous objects in the centers of galaxies), but are now quiescent.
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Globular clusters are extremely luminous objects.
Two teams of astronomers led by researchers at the University of Cambridge have looked back nearly 13 billion years, when the Universe was less than 10 percent its present age, to determine how quasars — extremely luminous objects powered by supermassive black holes with the mass of a billion suns — regulate the formation of stars and the build - up of the most massive galaxies.
Not exact matches
«We didn't expect a signal that bright, so we came up with the name QUASR, inspired by quasars, the extremely luminous celestial objects that can be a trillion times brighter than the sun,» Meagher said.
Quasars, discovered in 1963, are extremely distant massive black holes (MBHs) whose gravity pulls in immense amounts of nearby matter.24 The potential energy of all that infalling matter is converted to bright radiation, making quasars the most luminous stable objects in the universe.