Mohamad Shalaby

Plasma Astrophysicist | HAPI Research Associate

Particle-in-Cell (PIC) Simulation for Weakly to Strongly Magnetized Strong Parallel Shocks Using the SHARP Code

In this study, we investigate the effects of increasing the background magnetic field (i.e., from weakly to strongly magnetized cases) on the evolution of parallel magnetized electron-ion strong shocks (with realistic ion-to-electron mass ratio \(m_i/m_e = 1836\)) in 1D3V PIC simulations.

The simulations are published in "Parallel Collisionless Shocks in strongly Magnetized Electron-Ion Plasma. I. Temperature anisotropies"
Shalaby et al 2025 ApJ 991 26

\(\sigma_i' = 0.06 \;\rightarrow\; \sigma_i \approx 0.04\)
\(\sigma_i' = 0.1 \;\rightarrow\; \sigma_i \approx 0.07\)
\(\sigma_i' = 1.0 \;\rightarrow\; \sigma_i \approx 0.51\)
\(\sigma_i' = 1.5 \;\rightarrow\; \sigma_i \approx 0.73\)
\(\sigma_i' = 4 \;\rightarrow\; \sigma_i \approx 1.0\)
\(\sigma_i' = 10 \;\rightarrow\; \sigma_i \approx 2.51\)