Sentences with phrase «when supermassive black holes at the center»

Quasars are rare because they are a brief phase that all galaxies go through, when the supermassive black hole at their centers consumes matter at a high rate.
When the supermassive black hole at the center of the Milky Way consumes an incoming cloud of gas, NASA's Swift telescope will be on the scene.
When supermassive black holes at the center of galaxies accrete matter (usually gas), they give rise to a highly energetic phenomena named Active Galactic Nuclei (AGN).

Not exact matches

Supermassive black holes lurk at the centers of galaxies, and when those galaxies collide, eventually their supermassive black holes will first slowly circle each other spiraling inward like water down a drain, then eventually meSupermassive black holes lurk at the centers of galaxies, and when those galaxies collide, eventually their supermassive black holes will first slowly circle each other spiraling inward like water down a drain, then eventually mesupermassive black holes will first slowly circle each other spiraling inward like water down a drain, then eventually merge as well.
Select the link below to show a spiral galaxy turning into a quasar when some material is dumped onto the supermassive black hole at the center.
For many years, astronomers have known two types - «supermassive» black holes at the centers of large galaxies and the so - called «stellar - mass» black holes that result when a star about 10 times the Sun's mass ends its life in a supernova explosion.
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