NASA Telescopes spotted the brightest high-energy floods in radiation from space Fully registered.
About 1.9 billion years ago, a dying star collapsed and exploded in a powerful wave of gamma rays that shot toward Earth. Finally, they swept our planet on October 9th. They called detectors on three orbiting telescopes: the Fermi Gamma Ray Space Telescope, the Neil Gehrells Swift Observatory, and the Wind spacecraft.
These telescopes and other observatories around the world quickly settled on the source of the radiation: a distant object now called GRB 221009A, pulsing with the powerful glow of gamma-ray emissions.
It was the most illuminating and powerful event ever, NASA announce Thursday. Telescope images show how dangerous the explosion was.
“In our research group, we refer to this explosion as ‘the boat’, or the brightest of all, because when you look at the thousands of eruptions detected by gamma-ray telescopes since the 1990s, this telescope stands out,” Gillian said. Rastingad, a doctoral student at Northwestern University, in A Advertising.
Rasstad led a group of researchers who made follow-up observations on Friday and made more measurements as the gamma rays continued to stream toward Earth.
The radiation may be from a supernova explosion – the collapse of a dying star into a black hole. It may be decades before another gamma-ray burst appears again.
“It’s a very unique event,” said Yvette Sindis, an astronomer and postdoctoral fellow at the Harvard-Smithsonian Center for Astrophysics. musibleAdding that a giant gamma-ray burst in a galaxy very close to us is “extremely, incredibly rare.”
“It’s the equivalent of getting front row seats at a fireworks display,” she said.
The sheer power and brightness of the ancient explosion allow astronomers to collect a lot of data about it, which could reveal new insights into how stars die, how black holes form, and how matter behaves at near the speed of light, as it is. Coming out of a supernova. . It helps that the object is relatively close to us, compared to other gamma-ray bursts discovered by astronomers.
This proximity “allows us to detect many details that would be too faint to be seen,” said Roberta Pellera, a member of the Fermi LAT Collaborative who led the initial communications about the explosion at NASA. Advertising. “But it’s also among the most energetic and brightest explosions ever, no matter the distance, which makes it doubly exciting.”
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