Science, Space and Technology News 2024
Discoveries from the James Webb Space Telescope suggest early galaxies were forming complex structures like bars significantly earlier, pointing to accelerated evolution. Credit: SciTechDaily
A grey-scale image of the galaxy EGS_31125 at 10.6 billion years ago, visually classified as strongly barred . From left to right: Hubble Space Telescope WFC3 F160W and James Webb Space Telescope NIRCam F356W and F444W. This filter comparison demonstrates the effects of Point Spread Function , sensitivity and wavelength range on a galaxy image, particularly in the context of bars.
A grey-scale image of the galaxy EGS_31125 at 10.6 billion years ago as seen by the Hubble Space Telescope. The galaxy’s bar cannot be seen. Credit: Zoe Le ConteThe researchers used the JWST to look for bar formation in galaxies as they would have been seen between 8 to 11.5 billion years ago. The Universe itself is 13.7 billion years old. Of 368 disc galaxies observed, the researchers saw that almost 20 percent had bars – twice as many than observed by Hubble.
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