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Record 30 of 272
3-D RPIC Simulations of Relativistic Jets: Particle Acceleration, Magnetic Field Generation, and Emission
Author and Affiliation:
Nishikawa, K.-I.(National Space Science and Technology Center, Huntsville, AL, United States)
Mizuno, Y.(NASA Marshall Space Flight Center, Huntsville, AL, United States)
Hardee, P.(Alabama Univ., Huntsville, AL, United States)
Hededal, C. B.(Alabama Univ., Huntsville, AL, United States)
Fishman, G. J.(Alabama Univ., Huntsville, AL, United States)
Abstract: Recent PIC simulations using injected relativistic electron-ion (electro-positron) jets into ambient plasmas show that acceleration occurs in relativistic shocks. The Weibel instability created in shocks is responsible for particle acceleration, and generation and amplification of highly inhomogeneous, small-scale magnetic fields. These magnetic fields contribute to the electron's transverse deflection in relativistic jets. The "jitter" radiation from deflected electrons has different properties than the synchrotron radiation which is calculated in a uniform magnetic field. This jitter radiation may be important to understand the complex time evolution and spectral structure in relativistic jets and gamma-ray bursts. We will present recent PIC simulations which show particle acceleration and magnetic field generation. We will also calculate associated self-consistent emission from relativistic shocks.
Publication Date: Jan 01, 2006
Document ID:
20070001551
(Acquired Jan 10, 2007)
Subject Category: PHYSICS (GENERAL)
Document Type: Conference Paper
Meeting Information: Microquasars and Beyond; 18-22 Sep. 2006; Como; Italy
Financial Sponsor: NASA Marshall Space Flight Center; Huntsville, AL, United States
Organization Source: NASA Marshall Space Flight Center; Huntsville, AL, United States
Description: 1p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: Copyright
NASA Terms: PARTICLE ACCELERATION; RELATIVISTIC PARTICLES; NONUNIFORM MAGNETIC FIELDS; GAMMA RAY BURSTS; FIELD EMISSION; AMPLIFICATION; SYNCHROTRON RADIATION; VIBRATION; POSITRONS; PLASMAS (PHYSICS)
Availability Source: Other Sources
Availability Notes: Abstract Only
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