Speaker
Description
The torus is composed predominantly of sulfur and oxygen ions supplied by an extended atomic neutral cloud ultimately derived from $SO{_2}$ in Io's atmosphere. The major species of the torus are $S^{+}$, $S^{++}$, $S^{+++}$, $O^{+}$, and $O^{++}$. The emission is diagnostic of plasma conditions, and the majority of the emission is in the UV where a terawatt of energy is emitted. The emission is highly variable with different plasma distributions, 3D models, and viewing geometries. We provide an open-source software to produce thermal and non thermal 3D distributions of plasma and separate open-source software to then use the produced 3D plasma distributions to simulate emission at various wavelengths the resulting plasma would produce. The volume emission rates are integrated over the line of sight to produce emission brightnesses for comparison with observations. Given the viewing geometry and pointing of an instrument any line of sight can be simulated of the torus emission. Software is provided in Python, Fortran, C++, IDL, MATLAB, and Mathematica. CPU parallelized versions in Fortran and C++ using MPI are also provided. Further in single node applications a CPU parallelized Python version using multiprocessing is also provided. The codes can be found at https://doi.org/10.5281/zenodo.17809172 and https://doi.org/10.5281/zenodo.15623974.