Fig. 4: Pressure and entropy (post-shock residual temperature) experienced during impacts.
From: Ryugu’s observed volatile loss did not arise from impact heating alone
a The cumulative mass at a given peak pressure as a function of the peak pressure. The blue and red points correspond to the results of the Lab–simulation at low and high vimp, respectively. The four dashed grey lines are the results of the Ryugu–simulation. The numbers in the black boxes on the lines are the impact velocities used in the Ryugu–simulation. The green and pink shaded regions indicate the range of pressures in a previous impact experiment17. b The same as (a), except the cumulative mass at a given entropy is shown as a function of entropy. The vertical dashed yellow lines indicates the entropies required for incipient and complete devolatilisation of the target (Supplementary Note S8). The expected residual temperature Tres is also shown on the top x-axis. The calculated results shown in Fig. 4a and b can be found in Supplementary Data 2 and 3, respectively.
