Data and code from: Ion pickup and velocity space thermalization at outer planet moons

This dataset supports the study of ion pickup dynamics and velocity-space
thermalization at the outer planets' active moons (Io, Enceladus,
Europa). It contains output from hybrid-kinetic particle-in-cell (PIC)
simulations in which O+ ions are treated kinetically and electrons are
modeled as a massless fluid. The simulations are performed in the
moon's rest frame, where ambient corotating ions stream perpendicular
to the background magnetic field, forming a nongyrotropic two-population
velocity distribution that drives electromagnetic ion cyclotron (EMIC),
mirror-mode, and ion Bernstein wave instabilities. The dataset includes
time-series of electromagnetic field components, ion current densities,
number densities, and pressure tensors defined on simulation grids, as
well as particle phase-space data used for field-particle correlation
analysis and velocity distribution function reconstruction. Together,
these data enable quantitative analysis of wave dispersion properties,
particle energetics, and wave-driven ion scattering in both gyrophase and
pitch angle, providing a kinetic characterization of pickup-driven
wave-particle interactions relevant to in situ observations at active
moons throughout the outer solar system.