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Fig. A.1


Number of expected collisions (shown by the colorbar) undergone by an electron born at the nucleus surface, moving radially away from the nucleus and ballistically, before reaching the spacecraft location, depending on the outgassing rate, expressed in s−1, and the spacecraft-comet distance, expressed in km. The conditions encountered by Rosetta between 1st and 15th August 2016 are given by the black points.

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