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Fig. 4

image

Panels a)d): Exciter beam speeds vi vs. radial distance ri for all events considering the polynomial model (Eq. (3)) and the power law model (Eq. (6)) for STEREO-A (in red) and STEREO-B (in blue). Panels e)h): median values (solid lines) and 25th/75th percentiles (dotted lines) of data in panels a)d).

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