Persistence of precursor waves in two-dimensional relativistic shocks
arXiv:1704.04411 · doi:10.3847/1538-4357/aa6d6f
Abstract
We investigated the efficiency of coherent upstream large-amplitude electromagnetic wave emission via synchrotron maser instability at relativistic magnetized shocks by using two-dimensional particle-in-cell simulations. We considered the purely perpendicular shock in an electron-positron plasma. The coherent wave emission efficiency was measured as a function of the magnetization parameter σ, which is defined by the ratio of the Poynting flux to the kinetic energy flux. The wave amplitude was systematically smaller than that observed in one-dimensional simulations. However, it continued to persist, even at a considerably low magnetization rate, where the Weibel instability dominated the shock transition. The emitted electromagnetic waves were sufficiently strong to disturb the upstream medium, and transverse filamentary density structures of substantial amplitude were produced. Based on this result, we discuss the possibility of the wakefield acceleration model for the production of non-thermal electrons in a relativistic magnetized ion-electron shock.
19 pages, 16 figures, Revised Figure 15, results unchanged
References in corpus (8)
- Long Term Evolution of Magnetic Turbulence in Relativistic Collisionless Shocks: Electron-Positron Plasmas
- A new method of determining the initial size and Lorentz factor of gamma-ray burst fireballs using a thermal emission component
- Measuring the cosmic ray acceleration efficiency of a supernova remnant
- Heating and Non-thermal Particle Acceleration in Relativistic, Transverse Magnetosonic Shock Waves in Proton-Electron-Positron Plasmas
- Electrostatic and electromagnetic instabilities associated with electrostatic shocks: two-dimensional particle-in-cell simulation
- Relativistic Collisionless Shocks in Unmagnetized Electron-Positron Plasmas
- Wakefield Acceleration by Radiation Pressure in Relativistic Shock Waves
- Electron-ion coupling upstream of relativistic collisionless shocks
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