'This is strange': The James Webb Space Telescope discovers a strange galaxy that outshines its stars

In a pocket of the universe full of galaxies, the James Webb Space Telescope has set its sights on a galaxy that shines so brightly that it outshines its stars.

The James Webb Space Telescope has discovered the galaxy called GS-NDG-9422 – a realm that existed about a billion years after the Big Bang and may actually represent the missing link in galaxy evolution between the first of the universe Stars and well-structured galaxies.

GS-NDG-9422 “will help us understand how cosmic history began,” Alex Cameron, an observational astronomer at the University of Oxford in the United Kingdom, said in a recent report Press release. “My first thought when I looked at the spectrum of the galaxy was, ‘That’s strange,’ and that’s exactly what the Webb telescope was supposed to reveal.”

The newly discovered galaxy is unremarkable – except for its unique light signature, which shows patterns astronomers have not seen before. These features, which contribute to the light seen by Webb, are best explained by the galaxy’s superheated gas rather than its stars, according to a Paper published by Cameron and his colleagues in June in the journal Monthly Notices of the Royal Astronomical Society.

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Computer models of gas clouds heated by hot and massive stars to such an extent that their stars outshine their cosmic birthplaces matched “almost perfectly with Webb’s observations,” according to the press release. The newly discovered galaxy appears to be in the midst of a star formation sprint, and its reservoirs of gas and dust are being bombarded with countless photons of light. It is this light that the JWST was able to detect.

The telescope’s data on GS-NDG-9422 suggests that its stars “must be much hotter and more massive than what we see in the local universe,” said Harley Katz, study co-author and assistant professor of astronomy And astrophysics at the University of Chicago. “Makes sense because the early universe was a very different environment.”

The stars’ temperatures exceed 140,000 degrees Fahrenheit (80,000 degrees Celsius), about twice the expected temperature for typical hot and massive stars, the new study found.

Astronomers rely on JWST’s infrared-penetrating capabilities to reconstruct the earliest years of our universe, when the cosmos displayed something surprising Number of galaxies The had grown very large very quickly and they were Star formation hotspots.

Find out how rare strange galaxies like GS-NDG-9422 were back then Time would allow astronomers to refine models of galaxy evolution.

“It is a very exciting time to be able to use the Webb Telescope to explore this period the universe “This was once inaccessible,” Cameron said in the statement. “We are only at the beginning of new discoveries and insights.”

topicnews · September 28, 2024

‘This is strange’: The James Webb Space Telescope discovers a strange galaxy that outshines its stars

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topicnews · September 28, 2024

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