Topic: gamma-ray bursts

Ore Gottlieb’s group studies compact objects and high-energy transients through general-relativistic magnetohydrodynamic simulations, analytical models and multimessenger predictions. Topics include black holes, neutron stars, collapsars, stellar explosions, compact-object mergers, gamma-ray bursts, nucleosynthesis and gravitational waves. The researcher can develop independent projects and use leadership-class computing allocations. The benefits-eligible appointment is for two years with a possible third year, beginning flexibly in summer or autumn 2027. Salary is $73,308–$90,000. Application

Models of gamma-ray bursts connect hypernova explosions and neutron-star mergers to rapidly expanding, high-energy fireballs. The seminar examines the accompanying shock waves and acceleration of cosmic rays as part of the physical picture of these extreme transients.

Gamma-ray bursts can release enormous energy within fractions of a second, followed by longer-lived emission across other wavelengths. This seminar explains how observations of these afterglows and their host galaxies help distinguish explosions of massive stars from mergers of neutron stars.