Free Access
Fig. 1

A power-law spectrum of protons in a beam as seen by the observer for different values of viewing angles, and an example of Lorentz factor and slope (solid lines). The gray dashed lines stand for the earlier derivation results for the same parameters (see Sect. 2.4).
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.