The A-STAR mission concept

Author: Paul O'Brien

Abstract: We describe a small, high-energy mission concept called A-STAR (All-Sky Transient Astrophysics Reporter) designed to locate the X-ray counterparts to gravitational wave and neutrino sources, study low luminosity gamma-ray bursts and high-redshift gamma-ray bursts, and monitor a wide variety of transient high-energy source types including tidal disruption events, magnetar flares and AGN. A-STAR can survey the entire available sky twice per 24 hours using a dual payload consisting of a coded mask instrument, Owl, operating in the 4- 150 keV band and a sensitive wide-field focussing soft X-ray instrument, Lobster, working in the 0.15-5 keV band.