Space

Dead stars in the Milky Way’s companion galaxy create a gamma cocoon

The mysterious ultra-bright gamma-ray emission in the giant bubbles blown by our galaxy may finally have an explanation.

The researchers used data from Gaya and Fermi space telescopes to search through Fermi bubbles, a pair of colossal hourglass-shaped bubbles radiating from the poles The Milky Way and span 50,000 light-years to trace the source of very bright patches of gamma-ray emission.



https://www.space.com/gamma-ray-cocoon-sagittarius-dwarf-galaxy/ Dead stars in the Milky Way’s companion galaxy create a gamma cocoon

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