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Comparison of accelerated ion populations observed upstream of the bow shocks at Venus and Mars

Coates, A. J.; Fedorov, A.; Barabash, S. +12 more

Foreshock ions are compared between Venus and Mars at energies of 0.6~20 keV using the same ion instrument, the Ion Mass Analyser, on board both Venus Express and Mars Express. Venus Express often observes accelerated protons (2~6 times the solar wind energy) that travel away from the Venus bow shock when the spacecraft location is magnetically co…