Erlangen 2026 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 65: Invited Topical Talks IV

T 65.3: Invited Topical Talk

Donnerstag, 19. März 2026, 14:45–15:15, MED 00.915

Supernova Remnants as Accelerators of Galactic Cosmic Rays — •Robert Brose — Universität Potsdam

Particle acceleration in supernova remnants (SNRs) remains a cornerstone for understanding cosmic-ray (CR) origin. Multi-messenger signatures from SNRs are hereby crucial in pinning down the particularities of the acceleration process. Improvements in instrumental sensitivity from radio to gamma-ray energies and improved statistics in direct CR measurements have started to reveal cracks in the long-standing paradigm that SNRs are indeed the solely producers of Galactic CRs.

In this talk, we present a brief and candid overview of the numerical methods and assumptions typically employed in modeling shock acceleration in SNRs . Then we focus on multiwavelength (and multimessenger) signals from SNRs bridging from very early stages, a few years after the explosion, to times where CRs start to leak out of the SNR's interior and considerably change the observational signatures.

Keywords: cosmic ray; supernova remnant; particle acceleration; gamma ray