Astronomy with ultra high-energy particles
Joerg R. Hoerandel
TL;DR
This paper summarizes recent cosmic ray measurements above 10^17 eV, discusses their implications for understanding their origins, and highlights how ultra high-energy particles enable astronomical observations of the universe.
Contribution
It presents recent findings from the Pierre Auger Observatory that demonstrate the potential of ultra high-energy cosmic rays for astronomical studies.
Findings
Detection of cosmic rays exceeding 10^20 eV
Evidence of minimal magnetic deflection at highest energies
New insights into cosmic ray sources and origins
Abstract
Recent measurements of the properties of cosmic rays above 10^17 eV are summarized and implications on our contemporary understanding of their origin are discussed. Cosmic rays with energies exceeding 10^20 eV have been measured, they are the highest-energy particles in the Universe. Particles at highest energies are expected to be only marginally deflected by magnetic fields and they should point towards their sources on the sky. Recent results of the Pierre Auger Observatory have opened a new window to the Universe - astronomy with ultra high-energy particles.
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