3 papers
physics.plasm-ph2026
Flow-Regulated Suprathermal Particle Acceleration in Weakly Collisional Astrophysical Plasmas
Ji-Hoon Ha, Elena S. Volnova
We investigate the formation of suprathermal particle populations in weakly collisional plasmas using a one-dimensional Fokker-Planck framework. A key element of this work is the i…
physics.flu-dyn2026
AI-based separation of turbulence from coherent background flows in decaying hydrodynamic turbulence
Ji-Hoon Ha, Elena S. Volnova
Separating turbulent fluctuations from coherent large-scale background flows is a longstanding challenge in the analysis of numerical simulations and astronomical observations. Tra…
astro-ph.HE2025
Electron Acceleration via Lower-Hybrid Drift Instability in Astrophysical Plasmas: Dependence on Plasma Beta and Suprathermal Electron Distributions
Ji-Hoon Ha, Elena S. Volnova
Density inhomogeneities are ubiquitous in space and astrophysical plasmas, particularly at magnetic reconnection sites, shock fronts, and within compressible turbulence. The gradie…