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17 sie 2024 · The GRB 221009A burst, which occurred on October 9, 2022, dubbed the brightest of all time (BOAT), was the strongest gamma-ray burst ever recorded. Observations made by the Swift-BAT instrument...
21 lis 2023 · The most powerful events in the known universe – gamma-ray bursts (GRBs) – are short-lived outbursts of the highest-energy light. They can erupt with a quintillion (a 10 followed by 18 zeros) times the luminosity of our Sun.
5 paź 2023 · Gamma ray bursts happen when neutron stars collide or when giant stars explode into black holes, releasing jets of super-energetic photons that look like a narrow beam of a flashlight.
7 gru 2022 · Gamma-ray bursts (GRBs) are flashes of high-energy radiation arising from energetic cosmic explosions. Bursts of long (greater than two seconds) duration are produced by the core-collapse of...
The kilonova associated with GW170817 (box) was observed by NASA's Hubble and Chandra X-ray Observatory. Hubble detected optical and infrared light from the hot expanding debris. The merging neutron stars produced gravitational waves and launched jets that produced a gamma-ray burst.
24 sty 2024 · Article. Astronomers think a long GRB (gamma-ray burst) arises from a massive, rapidly rotating star when its core runs out of fuel and collapses, forming a black hole in the star’s center. In this artist's concept, two jets emerge from the dying star and interact with surrounding gas and dust.
20 lis 2019 · Very-high-energy γ-rays observed ten hours after the prompt emission of the γ-ray burst 180720B can be attributed to either an inverse Compton or an extreme synchrotron process.
