Bulletin of the American Physical Society
64th Annual Meeting of the APS Division of Plasma Physics
Volume 67, Number 15
Monday–Friday, October 17–21, 2022; Spokane, Washington
Session PP11: Poster Session VI: In-Person, Hall A (2:00-3:30pm) and Virtual Poster Presentations (3:45-5:00pm)
MFE: Diagnostics; Edge and Pedestal; Stability; Heating; Transport, Turbulence
ASTRO: Astrophysical Plasma
2:00 PM - 5:00 PM
Wednesday, October 19, 2022
Room: Exhibit Hall A and Online
Abstract: PP11.00129 : Quasi-cylindrical kinetic simulations of particle acceleration in relativistic magnetized jets*
Presenter:
Gabrielle Guttormsen
(University of California, Los Angeles)
Authors:
Gabrielle Guttormsen
(University of California, Los Angeles)
Frederico Fiuza
(SLAC - Natl Accelerator Lab)
E. Paulo Alves
(University of California, Los Angeles)
Motivated by the natural cylindrical symmetry of jets, we explore the use of PIC simulations in quasi-cylindrical geometry [4], where fields and currents are decomposed in a truncated azimuthal basis, to carry out large dynamic range studies of particle acceleration in relativistic jets. We compare quasi-cylindrical and full-3D (cartesian) simulations of non-thermal particle acceleration driven by the kink instability [1]. By investigating numerical convergence properties, we determine the minimal number of azimuthal modes required to recover 3D results for different system sizes. We show that quasi-cylindrical PIC simulations offer a promising and efficient method of probing the 3D physics of particle acceleration in relativistic jets.
[1] Alves et al. 2018
[2] J. Develaar et al. 2020
[3] Ortuño-Macías et al. 2022
[4] Davidson et al. 2015
*National Science Foundation NSF-GRFP DGE-1650604
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