3 papers
astro-ph.HE2026
Cosmogenic photon fluxes at ultra-high energies
Marcus Niechciol, Chiara Jane Papior, Markus Risse
During their propagation, ultra-high energy cosmic rays produce cosmogenic photons. The expected flux level of these photons may vary by orders of magnitude depending on parameters…
physics.ed-ph2025
Subatomic Heroes
Anshika Bansal, Guido Bell, Aritra Biswas +44
Sharing the amazing achievements of the (particle) physics world with the general public is at the heart of the mission of the Subatomic Heroes, based at the University of Siegen,…
astro-ph.HE2024
Towards Searching for Photons with Energies beyond the PeV Range from Galactic PeVatrons
Marcus Niechciol, Chiara Papior, Markus Risse
Several gamma-ray observatories have discovered photons of cosmic origin with energies in the PeV () range. Photons at these energies might be produced as by-pr…