Sentences with phrase «cores of active galaxies»
The ideal background «lights» for such a study are quasars, which are very distant bright cores of active galaxies powered by black holes.
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They are proposed to be the primary cause of active galactic nuclei found at the core of some galaxies.
Quasars are bright cores of distant active galaxies.
The leading suspects in the half - century old mystery of the origin of the highest - energy cosmic particles in the universe were in galaxies called «active galactic nuclei,» which have a super-radiating core region around the central supermassive black hole.
«We're peering right down into the core of the nucleus of this active galaxy,» Readhead says.
«The idea can naturally explain the mystery about the morphology of the Seyfert galaxies,» said Professor Taniguchi, pointing out the advantage of the model of normal - looking galaxies also being very active at their cores.
One reason Morris and a growing number of astronomers are mesmerized by the maelstrom at the core of our galaxy is that it doesn't fit neatly into any of the models that scientists have painstakingly assembled over the decades to describe the various types of «active» galaxies they observe.
Blazars periodically flare when the supermassive black holes in some active galaxies» cores fill with dust and gas, releasing massive amounts of energy.
It is a Seyfert galaxy that is dominated by something known as an Active Galactic Nucleus — its core is thought to contain a supermassive black hole that is emitting huge amounts of radiation, pouring energetic X-rays out into the universe.
As galaxies with active black holes in their cores provide a means of observing huge quantities of radiation being generated and its impact on galaxies, AGN have been used as a laboratory to study star formation in these tumultuous places.
Active galactic nuclei (AGN) are a type of extremely bright galaxy core seemingly fueled by powerful black holes actively gobbling large amounts of material.
«Using space VLBI, we can probe the cores of quasars and active galaxies, believed to be powered by super massive black holes,» said Dr. Robert Preston, project scientist for the U.S. Space Very Long Baseline Interferometry project at JPL.
The «active» part of the galaxy is the supermassive black hole in its core, which spews out strong jets of energetic particles that produce enormous lobes of radio emission.