The propagation of relativistic jets in expanding media

Understand

We present a comprehensive analytic model of relativistic jet propagation in expanding homologous media (ejecta).

• This model covers the entire jet evolution as well as a range of configurations that are relevant to binary neutron star mergers.
• These include low and high luminosity jets, unmagnetized and mildly magnetized jets, time-dependent luminosity jets, and Newtonian and relativistic head velocities.
• We also extend the existing solution of jets in a static medium to power-law density media with index $\alpha<5$.