Dataset - Self-consistent stabilization of large-scale linear magnetic holes via ion trapping

This dataset contains processed magnetic field, density, and ion pressure tensor outputs from two-dimensional hybrid kinetic plasma simulations performed with the MENURA code. The data support the analysis presented in the associated manuscript on magnetic field evolution and pressure anisotropy dynamics under varying guide field strengths and oblique configurations. Simulation Parameters Simulations were performed for guide field scales: L=50 di L=10 di L=1 di Density perturbation amplitudes: δ=0.20 δ=0.40 δ=0.60 Oblique configurations (where applicable): α=10∘ α=30∘ All quantities are expressed in normalized simulation units (length in di, time in ω_{c,i}^{−1}, magnetic field, density and pressure normalised to background values). Temporal Sampling Data are provided at three normalized times: t=0, 2000, 4000 ω_{c,i}^{−1}, corresponding to the times analysed in the paper. File Format and Structure All files are provided in compressed NumPy format (.npz). How to Load the Data All files are provided in compressed NumPy format (.npz) and can be loaded using the numpy.load function in Python. Each file behaves as a dictionary containing the magnetic field (B_t*), density (dens_t*), and ion pressure tensor (P_t*) at the three simulation times. Example: import numpy as np # Load file data = np.load('data_L50_alpha10_d40.npz') # List available variables print(data.files) # Access fields at t = 2000 ω_ci^{-1} B = data['B_t2000'] dens = data['dens_t2000'] P = data['P_t2000'] # shape (6, Nx, Ny) # Magnetic field components Bx, By, Bz = B # Pressure tensor components Pxx, Pyy, Pzz, Pxy, Pxz, Pyz = P Each .npz file can also be opened using a context manager (with np.load(...) as data:) to ensure proper file handling. The arrays are directly compatible with NumPy, SciPy, and Matplotlib for further analysis and visualization. Naming convention Longitudinal configurations: data_L{L}_d{delta}.npz Oblique configurations: data_L{L}_alpha{alpha}_d{delta}.npz Stored variables Each file contains: B_t0, B_t2000, B_t4000Magnetic field components with shape (3, Nx, Ny) corresponding to (Bx,By,Bz). dens_t0, dens_t2000, dens_t4000Plasma density with shape (Nx, Ny). P_t0, P_t2000, P_t4000Ion pressure tensor with shape (6, Nx, Ny) ordered as (Pxx,Pyy,Pzz,Pxy,Pxz,Pyz).