Gamma-ray articles
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NASA's Fermi mission sees no gamma rays from nearby supernova
A nearby supernova in 2023 offered astrophysicists an excellent opportunity to test ideas about how these types of explosions boost particles, called cosmic rays, to near light-speed. But surprisingly, NASA's Fermi Gamma-ray Space Telescope detected none of the high-energy gamma-ray light those particles should produce.
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Astrophysics research advances understanding of how gamma-ray bursts produce light
Gamma-ray bursts (GRBs) are intense bursts of gamma radiation, typically generating more energy in a few seconds than the sun will produce over its ten-billion-year lifetime. These transient phenomena present one of the most challenging puzzles in astrophysics, dating back to their accidental discovery in 1967 by a nuclear surveillance satellite.
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Biggest gamma-ray burst ever recorded came from a "regular" supernova
Researchers in 2022 discovered the brightest GRB ever recorded. The event, labeled GRB 221009A, has been dubbed the "biggest of all time," or BOAT. Newly published research confirms that this unprecedented burst of electromagnetic energy originated from a star collapsing into a supernova.Read Entire Article