Fig. 8.

Scatter plots of maximum of SEP flux at three energy bands (>10 MeV (red), >50 MeV (blue), and >100 MeV (green)) vs the respective speed of CMEs (average speed-STEREO (panel a), maximum speed-STEREO (panel b), average speed-SOHO (panel c), maximum speed-SOHO (panel d) ). The open symbols represent disk events (longitude −20 < L < 45) and filled symbols represent west events (Longitude >45). There is one east event, on 31 August 2012 (longitude < −20; in yellow). This is the only event in our sample analyzed by STEREO-B as it exhibited good quality. The solid curves are linear fits to the data points.
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