Analysis of the first deep-field images from the James Webb Telescope reveals globular clusters more than 13 billion years old around the Sparkler galaxy.
In Webb’s highly detailed deep-field image galaxy cluster SMACS 0723first announced on July 11, astronomers were quickly attracted to a magnifying structure they called Glittering Galaxy.
The galaxy cluster SMACS 0723 photographed by the James Webb Space Telescope.
Galaxy cluster SMACS 0723 photographed by the James Webb Space Telescope. (Photo: NASA)
Located 9 billion light years away, this galaxy gets its name from the sparkling objects that appear as small red-yellow spots around it. According to a new study published in the journal Astrophysical journal lettersThese twinkling points could be young star clusters actively forming stars or globular clusters – ancient collections of stars dating from the earliest stages of a galaxy and containing clues to the stages of formation as well as its early development , Daily SciTech reported on November 28.
From initial analysis of 12 twinkling lights around the Sparkler Galaxy, the team determined that five of them were not only globular clusters but also the oldest such structures known, formed only one half a billion years after the Big Bang. The Big Bang event occurred approximately 13.8 billion years ago, meaning these globular clusters are more than 13 billion years old.
The enlarged image shows star clusters surrounding the Sparkler galaxy.
The enlarged image shows star clusters surrounding the Sparkler galaxy. (Photo: NASA)
“Webb was created to search for the first stars and galaxies and help us better understand the origins of the universe’s complexity, such as chemical elements and the building blocks of life.” said author Lamiya Mowla, a postdoctoral researcher at the Dunlap Institute for Astronomy & Astrophysics.
“Looking at the first images from Webb and discovering ancient globular clusters around distant galaxies was an incredible moment, something that would not have been possible with images from the Hubble Space Telescope before.”added co-author Kartheik G. Iyer of the Dunlap Institute for Astronomy & Astrophysics.
The Sparkler galaxy is special not only because of the sparkles surrounding it, but the structure is also magnified 100 times in Webb’s deep-field image due to gravitational lensing, including the SMACS 0723 galaxy cluster. in front of it distorts what is behind it, like a giant magnifying glass. Additionally, gravitational lensing created three separate images of Sparkler, allowing astronomers to study the galaxy in more detail.
Because Webb can observe star clusters in a range of wavelengths, the team can model them to better understand their physical characteristics, such as their age and the number of stars they contain. “We hope that knowing that globular clusters can be observed at such a distance with Webb will advance science in the search for similar objects.”Kartheik pointed out.
Article source: VNE
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Recent analysis of the first deep-field images from the James Webb Telescope has revealed globular clusters more than 13 billion years old around the galaxy…