'It shouldn't exist' say baffled astronomers after Nasa probe spots impossible object in background of photo | 8EOJE90 | 2024-02-09 15:08:01
The dwarf galaxy, nicknamed PEARLSDG, is about 98 million light-years away and has no recognized neighbors.
ASTRONOMERS have stumbled upon a faint, isolated dwarf galaxy that's mystifying them.
The dwarf galaxy, nicknamed PEARLSDG, is about 98 million light-years away and has no recognized neighbors.
The researchers uncovered the space oddity while analyzing an image taken with Nasa's James Webb Area Telescope.
Particularly, JWST's PEARLS (Prime Extragalactic Areas for Reionization and Lensing Science) observing program got here across the cluster.
It was discovered in the background of a picture of different galaxies and showed a scarcity of star-formation exercise.
This is thought-about very unusual for an isolated dwarf galaxy, as most of observations show precisely the other.
Sometimes, dwarf galaxies are remoted small galaxies composed of some billion stars.
Subsequently, this remoted but inactive dwarf galaxy was not predicted to exist.
Nasa's discovery challenges the current understanding of galaxy evolution.
"Some of these isolated quiescent dwarf galaxies haven't really been seen earlier than apart from relatively few instances," paper co-author Tim Carleton, an assistant research scientist at Arizona State College, stated in a press release.
"They don't seem to be really anticipated to exist given our current understanding of galaxy evolution, so the fact that we see this object helps us improve our theories for galaxy formation," he added.
"Usually, dwarf galaxies which are on the market by themselves are continuing to type new stars."
<!-- End of Brightcove Player --> JWST was capable of observe& the galaxy in ultraviolet, optical, and infrared wavelengths.
It also seemed on the cluster alongside spectroscopic knowledge from the DeVeny Optical Spectrograph on the Lowell Discovery Telescope in Arizona.
PEARLSDG is likely one of the furthest galaxies to be observed in this type of element.
Researchers revealed the new findings in The Astrophysical Journal Letters.
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