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Observation of solar energetic particle (SEP) events associated with narrow CMEs

Valtonen, E.; Al-Sawad, A.; Allawi, H. +1 more

We report here on two proton energetic particle events observed by the Energetic and Relativistic Nuclei and Electron (ERNE) instrument on the Solar and Heliospherical Observatory (SOHO). Both events were impulsive (SEP) events with intensities of >10^-3 cm^-2 sr^-1 s^-1 MeV^-1 at an energy rang…

Acceleration of the anomalous component of cosmic rays revisited

Hilchenbach, M.; Kallenbach, R.; Bamert, K.

In the years 2004 and 2007, the instruments onboard the Voyager 1 and 2 spacecraft delivered unprecedented data on the structure of the solar wind termination shock. This shock has been assumed to be responsible for the acceleration of the anomalous component of cosmic rays from a pick-up ion seed population derived from the interstellar neutral g…