Self-consistent radiative effect on relativistic electromagnetic particle acceleration

Noguchi, K. and Liang, E. and Nishimura, K. (2005) Self-consistent radiative effect on relativistic electromagnetic particle acceleration. Il nuovo cimento C, 28 (3). pp. 381-386. ISSN 1826-9885

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We study the radiation damping effect on the relativistic acceleration of electron-positron plasmas with two-and-half–dimensional particle-incell(PIC) simulation. Particles are accelerated by Poynting flux via the diamagnetic relativistic pulse accelerator(DRPA), and decelerated by the self-consistently solved radiation damping force. With Ωce/ωpe ≥ 10, the Lorentz factor of the highest energy particles reaches γ > 100, and the acceleration still continues. The emitted radiation is peaked within few degrees from the direction of Poynting flux and strongly linearly polarized, which may be detectable in γ-ray burst(GRB) observations. We also show that the DRPA is insensitive to the initial supporting currents.

Item Type: Article
Additional Information: Paper presented at the “4th Workshop on Gamma-Ray Burst in the Afterglow Era”, Rome, October 18-22, 2004.
Uncontrolled Keywords: Plasma simulation ; Particle-in-cell method ; Plasma dynamics and flow
Subjects: 500 Scienze naturali e Matematica > 530 Fisica
Depositing User: Marina Spanti
Date Deposited: 16 Mar 2020 10:24
Last Modified: 16 Mar 2020 10:24

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