After saturation due to sky background, these phenomena set an upper limit on telescope exposure time.
The weighted slab and leaky box formalisms describe the propagation of these phenomena. After saturation due to sky background, these phenomena set an upper limit on telescope exposure time. Diffuse acceleration in nonrelativistic shocks results in a power-law energy distribution for these phenomena with index -2. Charge times magnetic field times size of accelerator gives the Hillas criterion for whether a region could have accelerated these phenomena, suggesting (*) supernova remnants as a probable source. Surface detectors and fluorescence detectors comprise the Pierre Auger observatory which observes these phenomena. These particles form pions after scattering off CMB photons when they surpass '5 times 10 to the 19th' GeV, the GZK cutoff. For 10 points, name these high energy particles which mostly originate outside the solar system
The weighted slab and leaky box formalisms describe the propagation of these phenomena.
cosmic rays [or cosmic radiation]