High-energy electromagnetic cascades in extragalactic space: Physics and features
High-energy electromagnetic cascades in extragalactic space: Physics and features
Using the analytic modeling of the electromagnetic cascades compared with more precise numerical simulations, we describe the physical properties of electromagnetic cascades developing in the universe on cosmic microwave background and extragalactic background light radiations. A cascade is initiated by very-high-energy photon or electron, and the remnant photons at large …