Sentences with phrase «with supermassive black holes at their centers»
A team of astronomers has revealed tantalizing new information about the explosions of massive stars, the workings of galaxies with supermassive black holes at their centers, and clusters of galaxies.
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«While we don't yet know what dark matter is, we do know it interacts with the rest of the universe through gravity, which means it must accumulate around supermassive black holes,» said Jeremy Schnittman, an astrophysicist at NASA's Goddard Space Flight Center in Greenbelt, Maryland.
J1415 +1320 is what's known as a blazar, a bright galaxy with a gluttonous supermassive black hole at its center (SN: 3/4/17, p. 13).
Quasars are caused by the close encounter of two supermassive black holes, each with billions of solar masses and crammed into tight quarters at the center of a galaxy.
The joint research team led by graduate student and JSPS fellow Takuma Izumi at the Graduate School of Science at the University of Tokyo revealed for the first time — with observational data collected by ALMA (Atacama Large Millimeter / submillimeter Array), in Chile, and other telescopes — that dense molecular gas disks occupying regions as large as a few light years at the centers of galaxies are supplying gas directly to the supermassive black holes.
Supermassive black holes at the centers of galaxies formed in lockstep with the stellar structures of the galaxies.
«The intermediate - mass black holes that have now been found with Hubble may be the building blocks of the supermassive black holes that dwell in the centers of most galaxies,» says Karl Gebhardt of the University of Texas at Austin.
The «virtual telescope» is first getting up close and personal with Sagittarius A *, the supermassive black hole at the center of our galaxy.
Then, the team behind the new paper compared those ages with the size of the supermassive black hole at the center of the galaxies those stars live in, which other scientists had previously calculated.
He says that if there is a galaxy with an unusually large black hole at its center, this could have been the result of a supermassive black hole merger.
Astronomers suspect that most hypervelocity stars leave the Milky Way after a close brush with the supermassive black hole that sits at the center of our galaxy.