Search Publications
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…
ERNE observations of energetic particles associated with Earth-directed coronal mass ejections in April and May, 1997
Anttila, A.; Sahla, T.
Two Earth-directed coronal mass ejections (CMEs), which were most effective in energetic (~1-50 MeV) particle acceleration during the first 18 months since the Solar and Heliospheric Observatory (SOHO) launch, occurred on April 7 and May 12, 1997. In the analysis of these events we have deconvoluted the injection spectrum of energetic protons by u…
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…