Principal Hugoniot line in the ρ–P plane calculated using the present fit (solid line for T < 50 000 K, continued bylong-dashed line for T > 50 000 K) compared with experimental data (dots with error bars) of Podurets et al. (1972; as reanalyzed by Knudson et al. 2012; the original result of Podurets et al. 1972 is also shown with dotted error bars), Volkov et al. (1980); Mitchell & Nellis (1982); Lyzenga et al. (1982); Celliers et al. (2004); Knudson et al. (2012), and Kimura et al. (2015). For comparison, the principal Hugoniot lines predicted by the SESAME (Lyon & Johnson 1992) and ANEOS (Thomson & Lauson 1972) models are shown by the dotted line and short-dashed line, respectively. Inset panel: principal Hugoniot line in the ρ– T plane calculated from the fit and the experimental data points from Lyzenga et al. (1982) and Kimura et al. (2015).