The tar archive helical.tar contains the run directories for each run
in Table 1 and the figures of the paper "Polarization of gravitational
waves from helical MHD turbulent sources", https://arxiv.org/abs/2107.05356.
by A. Roper Pol, S. Mandal, A. Brandenburg, and T. Kahniashvili.
The run directories, the plots, and the code to generate the plots can be
found in https://github.com/AlbertoRoper/GW_turbulence.
