Ultra-high-energy cosmic rays (UHECRs) are a mystery. Scientists still don’t know where or how they are created. A new study combines three kinds of data measured at the Auger Observatory: the energy spectrum, shower maximum depth distributions, and arrival directions of UHECRs.

Publication: A.A. Halim et al., "Constraining models for the origin of ultra-high-energy cosmic rays with a novel combined analysis of arrival directions, spectrum, and composition data measured at the Pierre Auger Observatory", JCAP 01 (2024) 022

Acknowledgements: Image credits Pierre Auger Observatory. The podcast was created with Google/NotebookLM