Exportar Publicação

Stockem, A., Fiuza, F., Fonseca, R. A. & Silva, L. O. (2012). The impact of kinetic effects on the properties of relativistic electron-positron shocks. Plasma Physics and Controlled Fusion. 54 (12)

A. Stockem et al.,  "The impact of kinetic effects on the properties of relativistic electron-positron shocks", in Plasma Physics and Controlled Fusion, vol. 54, no. 12, 2012

@article{stockem2012_1715113419099,
	author = "Stockem, A. and Fiuza, F. and Fonseca, R. A. and Silva, L. O.",
	title = "The impact of kinetic effects on the properties of relativistic electron-positron shocks",
	journal = "Plasma Physics and Controlled Fusion",
	year = "2012",
	volume = "54",
	number = "12",
	doi = "10.1088/0741-3335/54/12/125004",
	url = "http://iopscience.iop.org/0741-3335/54/12/125004"
}

TY  - JOUR
TI  - The impact of kinetic effects on the properties of relativistic electron-positron shocks
T2  - Plasma Physics and Controlled Fusion
VL  - 54
IS  - 12
AU  - Stockem, A.
AU  - Fiuza, F.
AU  - Fonseca, R. A.
AU  - Silva, L. O.
PY  - 2012
SN  - 0741-3335
DO  - 10.1088/0741-3335/54/12/125004
UR  - http://iopscience.iop.org/0741-3335/54/12/125004
AB  - We assess the impact of non-thermally shock-accelerated particles on the magnetohydrodynamic (MHD) jump conditions of relativistic shocks. The adiabatic constant is calculated directly from first-principles particle-in-cell simulation data, enabling a semi-kinetic approach to improve the standard fluid model and allowing for an identification of the key parameters that define the shock structure. We find that the evolving upstream parameters have a stronger impact than the corrections due to non-thermal particles. We find that the decrease in the upstream bulk speed result in deviations from the standard MHD model up to 10%. Furthermore, we obtain a quantitative definition of the shock transition region from our analysis. For Weibel-mediated shocks the inclusion of a magnetic field in the MHD conservation equations is addressed for the first time.
ER  -