3 papers
astro-ph.HE2026
High-Synchrotron-Peaked BL Lacs as Multi-Messenger Sources: Connecting Ultra-High-Energy Cosmic Rays and Neutrinos
Luiz Augusto Stuani Pereira, Rita C. Anjos
High-synchrotron-peaked (HSP) BL Lac objects are extreme particle accelerators whose synchrotron emission peaks at high frequencies, typically in the UV-to-X-ray band ($ν_{\rm peak…
astro-ph.HE2026
Energy Deposition by Galactic Cosmic Rays and Implications for Ozone Chemistry
Luiz Augusto Stuani Pereira, Rita C. Anjos
We present a Monte Carlo study of galactic cosmic-ray (GCR) energy deposition and its implications for stratospheric chemistry, performed with the Geant4 toolkit. Primary nuclei (p…
astro-ph.HE2024
Impact of the Magnetic Horizon on the Interpretation of the Pierre Auger Observatory Spectrum and Composition Data
The Pierre Auger Collaboration, A. Abdul Halim, P. Abreu +364
The flux of ultra-high energy cosmic rays reaching Earth above the ankle energy (5 EeV) can be described as a mixture of nuclei injected by extragalactic sources with very hard spe…