Data file needed for modified Lombardi radiative cooling approximation

<p>This is a table containing the equation of state and opacity data required for running Phantom with the radiative cooling approximation introduced in Young et al. (2024). The EoS and opacity calculations are given in Lombardi et al. (2015) and Stamatellos et al. (2007). This method is primarily used to model self-gravitating discs.</p>