'Stupendously large' black holes could grow to truly monstrous sizes
By Charles Q. Choi 2 hours ago
There are monster black holes, and then there are SLABS.
An artist's impression of the supermassive black hole at the center of a galaxy. Scientists suspect
some monster black holes could grow to truly 'stupendous' sizes.
(Image: © ESO/L. Calçada)
How big might black holes get? A team of scientists now suggests black holes could reach what they call "stupendously large" sizes, each harboring the mass of 100 billion suns or more.
Discovering such gargantuan black holes may shed light on the nature of a significant fraction of the mysterious dark matter that makes up four-fifths of the matter in the universe, the researchers said.
At the centers of most, if not all, galaxies are supermassive black holes with masses that are millions to billions of times that of Earth's sun. For instance, at the heart of our Milky Way galaxy lies Sagittarius A*, which is about 4.5 million solar masses in size.
Currently the largest known black hole, powering the quasar TON 618, has a mass of 66 billion solar masses. TON 618's enormous bulk led scientists to speculate whether or not even larger black holes exist, and if there is any upper limit to their sizes.
More:
https://www.space.com/black-holes-can-reach-stupendously-large-sizes.html?utm_source=notification
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