Nelson, D., Kauffmann, G., Pillepich, A., Genel, S., Springel, V., Pakmor, R., et al. (2018). The abundance, distribution, and physical nature of highly ionized oxygen O vi, O vii, and O viii in IllustrisTNG. Monthly Notices of the Royal Astronomical Society, 477(1), 450-479. doi:10.1093/mnras/sty656.