Extended Data Fig. 5: Impact threshold prediction comparison to data.
Four methods for predicting the impact threshold are compared to observed data, where the vertical axis is u*,observed/u*,predicted − 1 (for the labelled prediction) and the horizontal axis is the Galileo number, \({{{\mathcal{G}}}}\). References for the observations are given on the right, where markers with shaded interiors signify experiments not using standard Earth conditions or field data. The correlation coefficient (r2) for each log-log comparison of u*,observed versus is u*,predicted (that is Fig. 3c) is annotated. (a) The prediction in the main text. (b) The prediction using the semiempirical theory of Kok (2010) (note: the vertical axis bounds are extended in the inset to show the full data extent). (c) The prediction using the semiempirical theory of Pähtz & Durán (2018). (d) The prediction using the semiempirical theory of Claudin & Andreotti (2006).
