‘Fireworks’ spotted in stellar explosion 15 million light-years away
Roughly half of 22 X-ray sources in M83 changed brightness over 14 years, and researchers say several mechanisms may explain the flares.
4 Articles
4 Articles
‘Fireworks’ spotted in stellar explosion 15 million light-years away
Fourth of July celebrations got an early start in a nearby galaxy. Astronomers using NASA’s Chandra X-ray Observatory to observe galaxy Messier 83 (M83) spotted the unexpected explosive aftermath of a supernova. Typically, the aftermath of a stellar explosion is a slowly fading cloud of piping hot gas. In this case, the supernova debris was dramatically bright—like a firework. The supernova is detailed in a study recently published in The Astrop…
The consequences of a supernova, a stellar explosion, are usually a cloud of hot gas that disappears slowly. Thus, when astronomers pointed NASA's Chandra X-ray observatory to the nearby galaxy Messier 83 (M83), they did not expect to find a population of supernova remains, nor the debris of these [...]
Erratic supernova remnants reveal hidden stellar survivors
New Delhi: Astronomers have recorded unexpected and dramatic variations in luminosities of supernova remnants in X-rays, within the Messier 83 (M83) galaxy. Typically, the stellar remnants fade gradually over centuries. Researchers have presented the findings at a meeting of the American Astronomical Society and published the results in The Astrophysical Journal. The research is based on 14 years of archival data (that is data not captured speci…
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