Simulation dataset for Off-diagonal Ion Pressure Linked to Hall Fields in Collisionless Magnetic Reconnection

The dataset contains simulation data used in the paper of "Off-diagonal Ion Pressure LInked to Hall Fields in Collisionless Magnetic Reconnection". Data are generated from a particle-in-cell simulation using the VPIC code. Please see the paper for the descriptions of the simulation setup.

The .gda files in fiels_moments_gda_files.zip are fields and plasma moments data from the time step presented in the paper. Each file contains float-type data arrays with a size of 6720x1x2240, corresponding to x-y-z dimensions, respectively. Data can be read by softwares like IDL, python, matlab, etc., using the standard data reading methods.

The file of harris_m100_x60_Hparticle.89586 contains ion particle data for this time step, for the domain of x=[0,60]di, z=[-8,8]di. The file is written in BINARY, for the information of indivial particles. Each data chunk constitues of the following variables in order: x, z, ux, uy, uz, q. Here x and z are positions of the particles, in unit of de; ux, uy, uz are relativistic velocities in unit of the speed of light (c), i.e., ux = gamma*vx, gamma=sqrt(1+ux^2+uy^2+uz^2); q represents the weight of the particles, so the contribution of a particle to the phase space density needs to multiply by this q factor (In the paper, q factors are re-normalized while the relative weights between particles remain the same).

An example IDL sentence of reading particle data: readu, lun, x, z, ux, uy, uz, q. Repeat this sentence for different particles.