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An enlighted galaxy by immensity

Scientists try to understand the motivations

The "Fireworks" galaxy (scientific name "Ngc 6946"), about 22 million light years from Earth, observed by NASA "Nustar" and "Chandra" telescopes appeared for 10 days strangely illuminated with X-rays blue and green, but the scientists wonder what made it shine.

Hannah Earnshaw, a researcher at Caltech University, has theorized that it could be a black hole that generated light by swallowing a star, but in general the "combustion" process in these cases lasts much longer. Another hypothesis is that it would be a "neutron star" that is formed when the giant celestial bodies are not large enough to produce a black hole but collapse into an incredibly dense ball. The neutron stars rotate so fast that its magnetic fields act as a barrier that prevent the passage of other astral objects debris. Only when a piece of material passes the fence, the star emits bright X-rays like those observed.

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AVIONEWS - World Aeronautical Press Agency