Evolution of the models with different warming curves. Left: initial ice and gas-phase components of the H₂S, OCS, SO, and SO₂ species in the inner core before the collapse. Comparison with the final abundance of these species in the gas-phase after the fiducial MHD collapse. Center. comparison of the fiducial MHD warming curve with the rest of warming curves explored in the section. Right: comparison of the fiducial MHD density curve with the rest of warming curves explored in the section. The different density curves are obtained using the barotropic equation of state from Machida et al. (2006).