Fig. 5

image

(a) Scatter plot of the ratio of number of RD events to that of ED as a function of distance from the Sun. The histogram of event count per radial distance (bin width = 1 [RS ]) is provided on the right y-axis in blue for reference. (b) Stacked bar plots of the relative ratios of RD:TD:ED:ND discontinuities for the present study (PSP@0.2 AU) and the studies by Neugebauer et al. (1984, ISEE@1.0 AU) and Yamauchi et al. (2002, Ulysses@1.63–3.73 AU).

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