Prospects of observing gamma-ray bursts with orbital detectors of ultra-high energy cosmic rays.
TUS (Tracking Ultraviolet Set-up), the first orbital telescope of ultra-high energy cosmic rays (UHECRs), has demonstrated that instruments of this kind have much broader capabilities and can also detect meteors,transient luminous events, anthropogenic glow and other processes taking place in the Earth atmosphere in the UV frequency range. In this short letter, we address the question if an orbital UHECR detector can also register gamma-ray bursts (GRBs) via the fluorescent glow of irradiated nocturnal atmosphere. An analysis of the Fermi GBM catalog of GRBs and properties of several active and perspective instruments reveals that a detector with an optical system similar to that of the KLYPVE-EUSO (K-EUSO) mission and an appropriate "slow-mode" trigger can possibly detect only 1--2 GRBs in two years of operation.
Publisher URL: http://arxiv.org/abs/1811.05887