H.E.S.S. collaboration detects the most energetic cosmic-ray electrons and positrons ever observed (IMAGE)
Caption
Artist's impression of a pulsar with its powerful magnetic field rotating around it. The clouds of charged particles moving along the field lines emit gamma rays that are focused by the magnetic fields, rather like the beams of light from a lighthouse. In these magnetic fields, pairs of positrons and electrons are created and accelerated, making pulsars potential sources of high-energy cosmic electrons and positrons.
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©NASA/Goddard Space Flight Center Conceptual Image Lab
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