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Particle acceleration at travelling shocks in the heliosphere
(North-West University (South Africa), 2020)
The acceleration of energetic protons from the solar wind (SW) distribution by traveling interplanetary shocks is investigated. The SW velocity distribution is represented using kappa functions, which are transformed in ...
Acceleration of cosmic rays in the outer heliosphere
(North-West University (South Africa), Potchefstroom Campus, 2016)
Shortly before the Voyager spacecraft crossed the heliospheric termination shock, they encountered narrow, peak-like enhancements in the intensities of low-energy electrons. These enhancements were associated at the time ...