50 citations · 410 across the 26 of their papers we have counts for
5 papers · 1 filter
Kinetic simulations of non-relativistic high-Mach-number perpendicular shocks propagating in a turbulent medium
Karol Fulat, Artem Bohdan, Gabriel Torralba Paz +1
Strong non-relativistic shocks are known to accelerate particles up to relativistic energies. However, for Diffusive Shock Acceleration electrons must have a highly suprathermal en…
Prediction and Anomaly Detection of accelerated particles in PIC simulations using neural networks
Gabriel Torralba Paz, Artem Bohdan, Jacek Niemiec
Acceleration processes that occur in astrophysical plasmas produce cosmic rays that are observed on Earth. To study particle acceleration, fully-kinetic particle-in-cell (PIC) simu…
Using PIC and PIC-MHD to investigate cosmic ray acceleration in mildly relativistic shocks
Artem Bohdan, Anabella Araudo, Allard Jan van Marle +2
Astrophysical shocks create cosmic rays by accelerating charged particles to relativistic speeds. However, the relative contribution of various types of shocks to the cosmic ray sp…
Electron-Ion Temperature Ratio in Astrophysical Shocks
John C. Raymond, Parviz Ghavamian, Artem Bohdan +9
Collisionless shock waves in supernova remnants and the solar wind heat electrons less effectively than they heat ions, as is predicted by kinetic simulations. However, the values…
Pre-acceleration in the Electron Foreshock II: Oblique Whistler Waves
Paul J. Morris, Artem Bohdan, Martin S. Weidl +3
Thermal electrons have gyroradii many orders of magnitude smaller than the finite width of a shock, thus need to be pre-accelerated before they can cross it and be accelerated by d…