Milky Way-Like Galaxies Found in the Early Universe by the JWST #SpaceSaturday
The James Webb Space Telescope has been looking back in time, and it has found something surprising. Astronomers call our Milky way galaxy is a “barred galaxy,” so-called because of the bars the radiate out from the nucleus. Looking back about 11 billion years ago, the JWST has discovered barred galaxies, far scientists imagined those galaxies to have developed. Here’s more from Phys.org:
“I took one look at these data, and I said, ‘We are dropping everything else!'” said Shardha Jogee, professor of astronomy at The University of Texas at Austin. “The bars hardly visible in Hubble data just popped out in the JWST image, showing the tremendous power of JWST to see the underlying structure in galaxies,” she said, describing data from the Cosmic Evolution Early Release Science Survey (CEERS), led by UT Austin professor, Steven Finkelstein.
“Bars solve the supply chain problem in galaxies,” Jogee said. “Just like we need to bring raw material from the harbor to inland factories that make new products, a bar powerfully transports gas into the central region where the gas is rapidly converted into new stars at a rate typically 10 to 100 times faster than in the rest of the galaxy.”
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