EGU21-12451
https://doi.org/10.5194/egusphere-egu21-12451
EGU General Assembly 2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

Particle energisation and transport at collisionless shocks propagating through turbulent media.

Domenico Trotta1, Francesco Valentini1, David Burgess2, and Sergio Servidio1
Domenico Trotta et al.
  • 1Università della Calabria, Dipartimento di Fisica, Rende, Italy (d.trotta248@gmail.com)
  • 2School of Physics and Astronomy, Queen Mary University of London, London, United Kingdom

Shocks and turbulence are spectacular, ubiquitous phenomena and are crucial ingredients to understand the production and transport of energetic particles in several astrophysical systems. The interaction between an oblique, supercritical shock and fully developed plasma turbulence is here investigated by means of kinetic simulations, for different turbulence amplitudes. The role of pre-existing, upstream turbulence on plasma transport is addressed using a novel technique, relying on the coarse-graining of the Vlasov equation. We find that the upstream transport properties strongly depend on upstream turbulence strength, with patterns modulated by the presence of turbulent structures. These results are relevant for a variety of systems, ranging from the Earth's bow shock interacting with solar wind turbulence, to the largest scales of radio relics in galaxy clusters.

How to cite: Trotta, D., Valentini, F., Burgess, D., and Servidio, S.: Particle energisation and transport at collisionless shocks propagating through turbulent media., EGU General Assembly 2021, online, 19–30 Apr 2021, EGU21-12451, https://doi.org/10.5194/egusphere-egu21-12451, 2021.

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