WEBB discovers the most distant galaxy ever seen - Just 290 million years after the Big Bang

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AVAO
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WEBB discovers the most distant galaxy ever seen - Just 290 million years after the Big Bang

Post by AVAO » Sat Jun 01, 2024 8:24 am

Astronomers find most distant galaxy using James Webb Space Telescope
PHYS.ORG | 2024 May 30

This infrared image from NASA’s James Webb Space Telescope (also called Webb or JWST) was taken by the NIRCam (Near-Infrared Camera) for the JWST Advanced Deep Extragalactic Survey, or JADES, program. The NIRCam data was used to determine which galaxies to study further with spectroscopic observations. One such galaxy, JADES-GS-z14-0 (shown in the pullout), was determined to be at a redshift of 14.32 (+0.08/-0.20), making it the current record-holder for the most distant known galaxy. This corresponds to a time less than 300 million years after the Big Bang.

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The combination of the extreme brightness and the fact that young stars are fueling this high luminosity makes JADES-GS-z14-0 the most striking evidence yet found for the rapid formation of large, massive galaxies in the early universe. "JADES-GS-z14-0 now becomes the archetype of this phenomenon," says Dr. Stefano Carniani of the Scuola Normale Superiore in Pisa, lead author on the discovery paper. "It is stunning that the universe can make such a galaxy in only 300 million years."
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Arxiv paper

Scientists used NASA's James Webb Space Telescope’s NIRSpec (Near-Infrared Spectrograph) to obtain a spectrum of the distant galaxy JADES-GS-z14-0 in order to accurately measure its redshift and therefore determine its age. The redshift can be determined from the location of a critical wavelength known as the Lyman-alpha break. This galaxy dates back to less than 300 million years after the Big Bang. Credit: NASA, ESA, CSA, Joseph Olmsted (STScI)

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Re: WEBB discovers the most distant galaxy ever seen - Just 290 million years after the Big Bang

Post by ivanluna » Mon Jun 10, 2024 4:59 am

This is all amazing, we’re reaching back into the history of our universe further and further. I just cannot wait for the next report.