Sentences with phrase «released by quasars»
The idea that the tremendous amounts of energy released by quasars results from material being drawn into a black hole at the center of a galaxy quickly rose as the leading explanation.
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Detailed comparison of new observations and supercomputer simulations has only now allowed researchers to understand how this can happen: the gas is first heated to temperatures of tens of millions of degrees by the energy released by the supermassive black hole powering the quasar.
Quasars are among the most luminous objects in the universe, and generally are believed to be powered by material being drawn into a supermassive black hole at the center of a galaxy, releasing large amounts of energy.
One theory is that a quasar is a dense cluster of stars in which large amounts of energy are released by the collision of stars within the cluster.