NASA’s Webb Finds Possible 'Direct Collapse' Black Hole
upstart writes:
NASA's Webb Finds Possible 'Direct Collapse' Black Hole:
Editor's Note: This post highlights a combination of peer-reviewed results and data from Webb science in progress, which has not yet been through the peer-review process.
As data from NASA's James Webb Space Telescope becomes public, researchers hunt its archives for unnoticed cosmic oddities. While examining images from the COSMOS-Web survey, two researchers, Pieter van Dokkum of Yale University and Gabriel Brammer of the University of Copenhagen, discovered an unusual object that they nicknamed the Infinity Galaxy.
It displays a highly unusual shape of two very compact, red nuclei, each surrounded by a ring, giving it the shape of the infinity symbol. The team believes it was formed by the head-on collision of two disk galaxies. Follow-up observations showed that the Infinity Galaxy hosts an active, supermassive black hole. What is highly unusual is that the black hole is in between the two nuclei, within a vast expanse of gas. The team proposes that the black hole formed there via the direct collapse of a gas cloud - a process that may explain some of the incredibly massive black holes Webb has found in the early universe.
Here Pieter van Dokkum, lead author of a peer-reviewed paper describing their initial discovery and principal investigator of follow-up Webb observations, explains why this object could be the best evidence yet for a novel way of forming black holes.
"Everything is unusual about this galaxy. Not only does it look very strange, but it also has this supermassive black hole that's pulling a lot of material in. The biggest surprise of all was that the black hole was not located inside either of the two nuclei but in the middle. We asked ourselves: How can we make sense of this?
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