Corpus ID: 220665848

Jet Propagation in Expanding Medium for Gamma-Ray Bursts

  title={Jet Propagation in Expanding Medium for Gamma-Ray Bursts},
  author={H. Hamidani and K. Ioka},
  • H. Hamidani, K. Ioka
  • Published 2020
  • Physics
  • The binary neutron star (BNS) merger event GW170817 clearly shows that a BNS merger launches a short Gamma-Ray Burst (sGRB) jet. Unlike collapsars, where the ambient medium is static, in BNS mergers the jet propagates through the merger ejecta that is expanding outward at substantial velocities (∼ 0.2c). Here, we present semi-analytic and analytic models to solve the propagation of GRB jets through their surrounding media. We also perform a series of 2D numerical simulations of jet propagation… CONTINUE READING

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