Work

Collisionless Relativistic Shocks: Current Driven Turbulence and Particle Acceleration

Year: 2014

Type: conference-paper

Abstract: The physics of collisionless relativistic shocks with a moderate magnetization is presented. Micro-physics is relevant to explain the most energetic radiative phenomena of Nature, namely that of the termination shock of Gamma Ray Bursts. A transition towards Fermi process occurs for decreasing magnetization around a critical value which turns out to be the condition for the scattering to break the mean field inhibition. Scattering is produced by magnetic micro-turbulence driven by the current carried by returning particles, which had not been considered till now, but turns out to be more intense than Weibel's one around the transition. The current is also responsible for a buffer effect on the motion of the incoming flow, on which the threshold for the onset of turbulence depends.

Source: International Journal of Modern Physics Conference Series

DOI: 10.1142/s2010194514601938

Authors: GUY PELLETIER, MARTIN LEMOINE, LAURENT GREMILLET, ILLYA PLOTNIKOV

Institutions: Institut de Planétologie et d'Astrophysique de Grenoble, Institut d'Astrophysique de Paris, Commissariat à l'Énergie Atomique et aux Énergies Alternatives, CEA DAM Île-de-France

Language: English

Topic: Astrophysics and Cosmic Phenomena

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: hybrid

OpenAlex ID: W2004967393

FWCI:

Cites: 25

Cited by: 1

Related to: 10