Gamma-ray afterglow from galactic centre gas clouds reveals prehistoric particle accelerator from PhysOrg.com
Astrophysicists using the H.E.S.S. gamma-ray telescopes, in Namibia, have announced the detection of very-high-energy gamma rays from huge gas clouds known to pervade the centre of our Galaxy.
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Gammaray afterglow from galactic centre gas clouds reveals prehistoric particle accelerator