Dampe-teleskopet avslöjar universellt mönster hos kosmiska strålar

14 maj 2026

Rapporterad av AI

Forskare som använder rymdteleskopet DAMPE har identifierat en gemensam spektral mjukning i kosmiska strålar över flera partikeltyper. Mönstret uppstår vid en styvhet på cirka 15 teraelektronvolt för allt från protoner till järnkärnor. Detta fynd, som publicerats i Nature, ger ny insikt i hur dessa högenergipartiklar beter sig i galaxen.

I mer än ett sekel har forskare studerat kosmiska strålar, de mest energirika partiklar som är kända i naturen. Data från DAMPE-uppdraget, som sköts upp i december 2015, visar nu att antalet av dessa partiklar sjunker kraftigt bortom en gemensam tröskel för styvhet. Effekten gäller likväl för protoner, helium, kol, syre och järnkärnor.

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