Interplanetary Physics: Energetic particles

Energetic (ensuremath∼ 1 to 50 MeV) protons associated with Earth-directed coronal mass ejections

During the period from January through mid-May, 1997, four large Earth- directed CMEs were observed by the Large Angle Spectroscopic …

J. Torsti, A. Anttila, L. Kocharov, P. Mäkelä, E. Riihonen, T. Sahla, M. Teittinen, E. Valtonen, T. Laitinen, R. Vainio