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Researchers using the James Webb Space Telescope have made groundbreaking discoveries in galaxy GN-z11, which is one of the most distant and luminous galaxies known. They identified a supermassive black hole responsible for the galaxy’s brightness and found a pristine gas clump that may lead to the discovery of the universe’s first stars, providing significant insights into cosmic evolution. Credit: SciTechDaily.comis probing galaxies near the dawn of time.
“We found extremely dense gas that is common in the vicinity of supermassive black holes accreting gas,” explained principal investigator Roberto Maiolino of the Cavendish Laboratory and the Kavli Institute of Cosmology at the University of Cambridge in the United Kingdom. “These were the first clear signatures that GN-z11 is hosting a black hole that is gobbling matter.”
Together, this evidence shows that GN-z11 hosts a 2-million-solar-mass, supermassive black hole in a very active phase of consuming matter, which is why it’s so luminous. A second team, also led by Maiolino, used Webb’s NIRSpec to find a gaseous clump of helium in the halo surrounding GN-z11.
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