Particle acceleration at oblique shock fronts
نویسندگان
چکیده
منابع مشابه
Particle acceleration in ultra-relativistic oblique shock waves
We perform Monte Carlo simulations of diffusive shock acceleration at highly relativistic oblique shock waves. High upstream flow Lorentz gamma factors (Γ) are used, which are relevant to models of ultra relativistic particle shock acceleration in Active Galactic Nuclei (AGN) central engines and relativistic jets and Gamma Ray Burst (GRB) fireballs. We investigate numerically the acceleration p...
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First-order Fermi acceleration processes at ultrarelativistic (γ ∼ 5-30) shocks are studied with the method of Monte Carlo simulations. The accelerated particle spectra are obtained by integrating the exact particle trajectories in a turbulent magnetic field near the shock. The magnetic field model assumes finite-amplitude perturbations within a wide wavevector range and with a predefined wave ...
متن کاملNon-linear Particle Acceleration in Oblique Shocks
The solution of the non-linear diffusive shock acceleration problem, where the pressure of the non-thermal population is sufficient to modify the shock hydrodynamics, is widely recognized as a key to understanding particle acceleration in a variety of astrophysical environments. We have developed a Monte Carlo technique for self-consistently calculating the hydrodynamic structure of oblique, st...
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We present results from a fully relativistic Monte Carlo simulation of diffusive shock acceleration (DSA) in unmodified shocks. The computer code uses a single algorithmic sequence to smoothly span the range from nonrelativistic speeds to fully relativistic shocks of arbitrary obliquity, providing a powerful consistency check. While known results are obtained for nonrelativistic and ultra-relat...
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ژورنال
عنوان ژورنال: Monthly Notices of the Royal Astronomical Society
سال: 1989
ISSN: 0035-8711,1365-2966
DOI: 10.1093/mnras/239.3.995