Gamma ray transients and related astrophysical phenomena

The papers deal with observational and theoretical studies of cosmic gamma-ray bursts and line transients, X-ray burst sources, and solar flares, as well as with instrument concepts for X-ray and gamma-ray burst observations. General characteristics of gamma-ray bursts and transients are reviewed, along with burst positions and distributions, energy spectra, emission processes, and source models. HEAO-3 observations of gamma-ray bursts are discussed, as are ISEE-3 searches for time variations in the 511-keV cosmic gamma-ray line flux, gamma-ray burst spectra, neutron-star and stellar-flare models of gamma-ray burst sources, satellite observations and models of X-ray burst sources, solar energetic transients, and solar-flare energetics. The instruments described include a burst and transient source detector for the Gamma-ray Observatory, a modulated multislit camera for improved localization of gamma-ray bursts, and a space-balloon ion-chamber gamma-ray burst detector.