Anomalous coupling in radiation mediated shocks}
arXiv:2306.03192 · doi:10.1017/S0022377823000582
Abstract
We summarize recent attempts to unravel the role of plasma kinetic effects in radiation mediated shocks. Such shocks form in all strong stellar explosions and are responsible for the early electromagnetic emission released from these events. A key issue that has been overlooked in all previous works is the nature of the coupling between the charged leptons, that mediate the radiation force, and the ions, which are the dominant carriers of the shock energy. Our preliminary investigation indicates that in the case of relativistic shocks, as well as Newtonian shocks in multi-ion plasma, this coupling is driven by either, transverse magnetic fields of a sufficiently magnetized upstream medium, or plasma micro-turbulence if strong enough magnetic fields are absent. We discuss the implications for the shock breakout signal, as well as abundance evolution and kilonova emission in binary neutron star mergers.
arXiv comment8 pages, 2 figures, to appear in Journal of Plasma Physics
References in corpus (19)
- Illuminating Gravitational Waves: A Concordant Picture of Photons from a Neutron Star Merger
- Simulations of relativistic collisionless shocks: shock structure and particle acceleration
- Fast radiation mediated shocks and supernova shock breakouts
- GRB170817A associated with GW170817: multifrequency observations and modeling of prompt gamma-ray emission
- Exploiting multi-scale parallelism for large scale numerical modelling of laser wakefield accelerators
- Relativistic Radiation Mediated Shocks
- Physics of radiation mediated shocks and its applications to GRBs, supernovae, and neutron star mergers
- Relativistic Photon Mediated Shocks
- A Systematic Approach to Numerical Dispersion in Maxwell Solvers
- Relativistic envelopes and gamma-rays from neutron star mergers
- Relativistic shock breakout from a stellar wind
- Monte-Carlo simulations of fast Newtonian and mildly relativistic shock breakout from a stellar wind
- Monte-Carlo simulations of relativistic radiation mediated shocks: II. photon starved regime
- Plasma kinetic effects in relativistic radiation mediated shocks
- Stochastically Induced Gamma-Ray Burst Wakefield Processes
- Plasma wakes driven by photon bursts via Compton scattering
- The role of plasma instabilities in relativistic radiation mediated shocks: stability analysis and particle-in-cell simulations
- Compton driven beam formation and magnetisation via plasma microinstabilities
- Magnetically driven coupling in relativistic radiation-mediated shocks