Physics – Plasma Physics
Scientific paper
Nov 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004aps..dppbm2006l&link_type=abstract
American Physical Society, 46th Annual Meeting of the Division of Plasma Physics, 15-19 November, 2004, Savannah, GA. MEETING I
Physics
Plasma Physics
Scientific paper
When a strongly magnetized collisionless plasma is suddenly deconfined, the expansion launches an intense electromagnetic (EM) pulse together with an intense transverse drift current. This drift current slows the EM pulse and accelerates the surface particles in a sustained manner via the J X B force and formation of ponderomotive traps. This diamagnetic relativistic pulse accelerator (DRPA) eventually converts most of the EM energy into direct particle energy. Remarkably, the late-time properties of the DRPA strongly resembles the observed properties of cosmic gamma-ray bursts, including their light curves, spectra and spectral evolution. We will review the latest PIC simulation results on the DRPA, for both electron-positron and electron-ion plasmas and mixtures. We will discuss their scaling properties and astrophysical implications.
Liang Edison
Noguchi Koichi
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