Friday 5 August 2022

JWST has caught two galaxies smashing together and sparking starbursts

JWST has caught two galaxies smashing together and sparking starbursts

The James Webb Space Telescope (JWST) has caught two galaxies colliding. In the midst of this cosmic clash, researchers have found something unexpected – there doesn’t seem to be an active supermassive black hole in either galaxy. The pair of galaxies, called IC 1623 or VV 114, is about 275 million light years away in the direction of the constellation Cetus. Lee Armus at the California Institute of Technology and his colleagues observed them with JWST as part of a campaign to spot four relatively nearby, bright galaxy mergers and figure out how they work.

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