For the first time, the possible appearance of ultra-high energy photons from merging compact objects such as black holes was tested.
Scientific Highlights
The energy spectrum and mass composition data from the Pierre Auger Observatory constrain the source properties.
The latest data of the Pierre Auger Observatory constrains scenarios of super-heavy particle relics.
In a recent review article current searches for ultra-high-energy (UHE) photons at the Pierre Auger Observatory were summarized.
This looks like the most natural question regarding ultra-high energy cosmic rays, but it’s also one of the hardest ones to be answered.
The possibility of some level of Lorentz invariance violation at very-high energies has been proposed in the context of theories beyond the Standard Model, quantum gravity and string theory.
