The European Space Agency (ESA) said Monday that its Euclidean space telescope detected a rare, bright halo of light around a nearby galaxy.
The halo, known as the Einstein Ring, was photographed surrounding a galaxy nearly 590 million light years away. This is thought to be close to the standard of the universe. One light year is measured at 5.8 trillion miles.
Astronomers know about galaxies where the phenomenon has been captured for over a century, but they were surprised when Euclidean revealed a bright, glowing ring.
Euclidean began his six-year mission to explore the dark universe by blowing up Cape Canaveral, Florida on July 1, 2023.
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The colorful oceans of stars and galaxies appear to be swimming in the vast blackness of space around the hazy halo at the central stage. In the middle of the image, a light bulb of ambiguous light in a warm shade of yellow spreads around a small, bright spot, surrounded by a thin circle of light that appears to be drawn intimately around it. (Imaging processing by ESA/Euclid/Euclid Consortium/NASA, JC. Cuillandre, G. Anselmi, T. Li)
But before the space telescope began investigating space, scientists had to make sure everything inside the ship was functioning properly. In the early stages of the test, which took place in September 2023, Euclidean sent the images back to Earth.
The ESA said the images were intentionally out of focus, but in one of the images, Euclidean archive scientist Bruno Altieri saw what he believes is a very special phenomenon. , I decided to take a closer look at that.
“I'm watching the data from Euclidean,” Bruno said in a press release from the ESA. “Even from that initial observation I could see it, but after Euclidean observed more of the area, we were able to see the perfect Einstein ring.
According to the ESA, for most of the population there, Einsteinling is a “very rare phenomenon.”
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The perfect round thin ring and the sharp, bright white disc in the middle are the protagonist of this image. They stand out against a humid, dark grey uniform color background. (Imaging processing by ESA/Euclid/Euclid Consortium/NASA, JC. Cuillandre, G. Anselmi, T. Li)
When a distant galaxy is observed through a telescope, light from that galaxy can encounter another galaxy on its way to the telescope. When that happens, the galaxy in the foreground acts like a magnifying glass, and gravity causes the moving ray to bend. According to the ESA, when the ray bends, scientists call that gravitational lens.
When the background galaxy, Lensing Galaxy and telescope are perfectly aligned, the image appears as a ring, also known as the Einstein ring.
The galaxy, called NGC 6506, is about 590 million light years away, and this is the first time a ring of light has been detected around its center.
“All powerful lenses are special because they are extremely rare and scientifically incredibly useful,” says Conor O'Riordan of the Max Planck Institute for Astrophysics. “This is especially special because it's very close to the earth and the alignment makes it very beautiful.”
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The paragraphs in the text explain the principles behind Einstein ring. (ESA)
Einstein Ring is based on the general theory of relativity of physicist Albert Einstein, and concentrates light like a giant lens, as it predicts light will bend around objects in the universe. said the ESA. This phenomenon allows scientists to see light from distant galaxies that are otherwise hidden.
“I think it's very interesting that this ring was observed within the famous galaxy, first discovered in 1884,” said Valeria Pettorino, scientist for the ESA Euclid project. “The galaxy has been known to astronomers for a very long time. However, this ring has not been observed before, which means finding new things even in places we thought we were familiar with. It shows how powerful Euclidean is. This discovery is extremely encouraging for the future. It shows the Euclidean mission and its incredible capabilities.”
Scientists hope that in the course of the mission, Euclidean will reveal more about the role of gravity in the universe and the nature of dark energy and dark matter.
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Euclid maps a third of the sky and observes billions of galaxies 10 billion light years away, ESA said. In doing so, scientists hope that Euclidean will find around 100,000 more powerful lenses, but ESA added, “it's amazing.”
“Euclide will use all this data that has never been seen before to revolutionise the field,” Oliordan said.
The Associated Press contributed to this report.
