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Der Ursprung der hochenergetischen kosmischen Strahlung bleibt ein Rätsel der modernen Hochenergie‐Astrophysik. Auch wenn die Theorie der Teilchenbeschleunigung in relativistischen Schocks von Gammastrahlenblitzen es nicht verbietet, so war die bisherige theoretische Erwartung, dass diese Objekte Teilchen nur auf begrenzte Energien beschleunigen sollten. Die kürzlich mit dem Teleskopsystem H.E.S.S...