(ORDO NEWS) — Researchers at the University of Stockholm studied images of ancient galaxies taken by the James Webb Telescope (JWST) and found compact structures in them that shed light on the features of star formation processes.
The discovery was made using the gravitational lens effect, which occurs when the gravity of a very massive body or structure bends and amplifies light rays passing through its center, acting like a giant magnifying glass.
When astronomers analyzed the images, they found that the gravitational lensing effect magnified images of more distant background galaxies.
Together with the resolution of the telescope itself, this made it possible to study their structure.
The oldest galaxy studied in the article is so far away that we can see what it looked like 13 billion years ago, when the universe was only 680 million years old.
Through image analysis, astronomers have discovered stellar clumps, very compact structures inside ancient (first) galaxies, which have helped them study the relationship between their formation and evolution, as well as the growth of galaxies several million years after the Big Bang.
According to the researchers, they hope that in the future the telescope will help to understand exactly how the formation and development of stellar clumps took place.
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