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Supernova Remnants Evolve into Powerful Cosmic Ray Accelerators

5/26/2025

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Summary

Story summary

New research reveals that supernova remnants, such as Tycho, can transform into extraordinary cosmic ray accelerators, known as "PeVatrons." This phenomenon occurs when a star sheds substantial mass before its explosive demise, forming a dense shell. The resulting shock wave propels particles to astonishing energies, producing cosmic rays that reach up to one peta-electron volt.

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Story summary

New research reveals that supernova remnants, such as Tycho, can transform into extraordinary cosmic ray accelerators, known as "PeVatrons." This phenomenon occurs when a star sheds substantial mass before its explosive demise, forming a dense shell. The resulting shock wave propels particles to astonishing energies, producing cosmic rays that reach up to one peta-electron volt.