"Jaw-Dropping Discovery: Massive Stars 10,000 Times Bigger Than Our Sun Unveiled by James Webb Telescope"
The James Webb Space Telescope (JWST) has made an astounding revelation, as Live Science reports, uncovering the first signs of an astonishing number of supermassive stars at the dawn of the universe. These stars, known as "celestial monsters," are estimated to be 5,000 to 10,000 times more massive than our Sun. Not only that, but they are five times hotter at their core, reaching a scorching temperature of 75 million degrees Celsius.
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The groundbreaking findings were published on May 5 in the journal Astronomy and Astrophysics by a team of European researchers led by Corinne Charbonnel, an astronomy professor at the University of Geneva in Switzerland. The researchers used data collected by the JWST to gather evidence of these extraordinary stars.
The existence of these celestial monsters presents a captivating mystery for astronomers. For years, the composition of different stars within globular clusters, which can be found in almost every galaxy, has puzzled scientists. The globular clusters, some of which contain the universe's largest stars, offer valuable insights into the early universe.
Mark Gieles, an ICREA professor at the University of Barcelona and co-author of the study, explained that globular clusters are between 10 and 13 billion years old, while superstars have a maximum lifespan of only two million years. This means that these gigantic stars vanished early from the observable clusters, leaving behind only indirect traces.
However, detecting these supermassive stars has proven to be a challenge due to their short lifespans resulting from their rapid consumption of nuclear fusion fuel.
To locate remnants of these ancient monsters, the researchers directed the JWST's infrared camera toward the galaxy GN-z11. This galaxy is one of the farthest and most ancient galaxies ever discovered, situated a staggering 13.3 billion light-years away from Earth.
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Daniel Schaerer, an astronomy professor at the University of Geneva and a member of the study team, emphasized that GN-z11 contains remarkably high levels of nitrogen and boasts a dense population of stars, making it an ideal target for this investigation.
