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Radiation from Relativistic Jets in Turbulent Magnetic FieldsUsing our new 3-D relativistic electromagnetic particle (REMP) code parallelized with MPI, we have investigated long-term particle acceleration associated with an relativistic electron-positron jet propagating in an unmagnetized ambient electron-positron plasma. The simulations have been performed using a much longer simulation system than our previous simulations in order to investigate the full nonlinear stage of the Weibel instability and its particle acceleration mechanism. Cold jet electrons are thermalized and ambient electrons are accelerated in the resulting shocks. The acceleration of ambient electrons leads to a maximum ambient electron density three times larger than the original value. Behind the bow shock in the jet shock strong electromagnetic fields are generated. These fields may lead to the afterglow emission. We have calculated the time evolution of the spectrum from two electrons propagating in a uniform parallel magnetic field to verify the technique.
Document ID
20090017783
Acquisition Source
Marshall Space Flight Center
Document Type
Conference Paper
Authors
Nishikawa, K.-I. (National Space Science and Technology Center Huntsville, AL, United States)
Mizuno, Y. (National Space Science and Technology Center Huntsville, AL, United States)
Medvedev, M. (Kansas Univ. Kansas City, KS, United States)
Zhang, B. (Nevada Univ. Las Vegas, NV, United States)
Hardee, P. (Alabama Univ. Tuscaloosa, AL, United States)
Niemiec, J. (Institute of Nuclear Physics Cracow, Poland)
Nordlund, A. (Niels Bohr Inst. Copenhagen, Denmark)
Frederiksen, J. (Niels Bohr Inst. Copenhagen, Denmark)
Mizuno, Y. (National Space Science and Technology Center Huntsville, AL, United States)
Sol, H. (Observatoire de Paris-Meudon France)
Fishman, G. J. (NASA Marshall Space Flight Center Huntsville, AL, United States)
Date Acquired
August 24, 2013
Publication Date
October 20, 2008
Subject Category
Plasma Physics
Report/Patent Number
M09-0294
Meeting Information
Meeting: Sixth Huntsville Gamma-Ray Burst Symposium 2008
Location: Huntsville, AL
Country: United States
Start Date: October 20, 2008
End Date: October 23, 2008
Funding Number(s)
CONTRACT_GRANT: NNX08AL39G
CONTRACT_GRANT: NNX09AD16G
CONTRACT_GRANT: NNX07AJ88G
CONTRACT_GRANT: NNX08AG83G
CONTRACT_GRANT: AST-0506666
OTHER: N N203393034
CONTRACT_GRANT: NNG05GK73G
CONTRACT_GRANT: AST-0506719
OTHER: 1 P03D 003 29
Distribution Limits
Public
Copyright
Public Use Permitted.

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