High-energy astrophysics: A rare Galactic antimatter source?

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Positron annihilation in the Galaxy has been observed for half a century now, but the positron sources have not been identified yet. A rare class of supernovae is now suggested to be the main positron producer.

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Figure 1: Positron production from supernova radioactivity in the Galaxy.

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Correspondence to Nikos Prantzos.

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Prantzos, N. High-energy astrophysics: A rare Galactic antimatter source?. Nat Astron 1, 0149 (2017) doi:10.1038/s41550-017-0149

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