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Gamma-ray burst - Wikipedia, the free encyclopedia
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A chronology of research and speculation regarding the nature and threat of gamma ray bursts from 1998 up through 2007: ... A burst of neutrinos may precede a gamma ray burster by as much as 10 seconds. So here is one possible (if tiny) warning of such phenomena.
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Burst ID Date Time Mission RA Dec ... GRB 091208B 2009/12/08 09:49:57 Swift 01:57:34.06 16:53:22.7 ... GRB 091202 2009/12/02 23:10:12 INTEGRAL 09:15:20.17 +62:32:58.1...
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Astronomers have found a gamma-ray burst from a star that died when the universe was only 630 million years old, or less than five percent of its present age. The event, dubbed GRB 090423, is the most distant cosmic explosion ever seen. ... Gamma-ray bursts are the universe's most luminous explosions. Most occur when...
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A specialized camera on a telescope operated by UK astronomers has made the first measurement of magnetic fields in the afterglow of a gamma-ray burst. ... Gamma Ray Bursts form when the core of a massive star collapses or when two neutron stars merge together. The resulting explosions are the brightest events in the...
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A stream of gamma rays aimed at Earth may have caused a mass die-off 440 million years ago, according to a new paper that says a similar celestial catastrophe could happen again. ... Most gamma-ray bursts are thought to be streams of high-energy radiation produced when the core of a very massive star collapses.
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Gamma-ray bursts are short-lived bursts of gamma-ray photons, the most energetic form of light. At least some of them are associated with a special type of supernovae, the explosions marking the deaths of especially massive stars.
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May 6, 1998: A team of astronomers has announced that a recently detected gamma-ray burst was as bright as the rest of the universe, releasing a hundred times more energy than previously theorized.
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BATSE and Beppo-Sax alert scientists from Europe to Australia to home in on a new optical counterpart to a gamma-ray burster. ... May 18, 1999: Eyes in the Southern Hemisphere are turning to capture the fading glory of a gamma-ray burst that appeared on May 10. The Burst and Transient Source Experiment (BATSE) aboard...
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Until late last month, these bursters were known only by their gamma-ray flashes - no counterpart had been seen at any other wavelength. But on February 28, an Italian/Dutch satellite known as BeppoSAX detected what may well be X-rays from a burster, eight hours after ... Gamma Ray Burster; Credit: BeppoSAX Team, ASI, ESA...
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