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Probing the magnetic topology of coronal mass ejections by means of Ulysses/HI-SCALE energetic particle observations

Sarris, E. T.; Malandraki, O.; Trochoutsos, P.

In this work, solar flare energetic particle fluxes (Ee geq 42 keV) observed by the HI-SCALE instrument onboard Ulysses, a spacecraft that is probing the heliosphere in 3-D, are utilized as diagnostics of the large-scale structure and topology of the interplanetary magnetic field (IMF) embedded within two well-identified interplanetary coronal mas…

Detection of zero anisotropy at 5.2 AU during the November 1998 solar particle event: Ulysses Anisotropy Telescopes observations

Balogh, A.; Dalla, S.

For the first time during the mission, the Anisotropy Telescopes instrument on board the Ulysses spacecraft measured constant zero anisotropy of protons in the 1.3-2.2 MeV energy range, for a period lasting more than three days. This measurement was made during the energetic particle event taking place at Ulysses between 25 November and 15 Decembe…