Search Publications
Parameter estimation of superdiffusive motion of energetic particles upstream of heliospheric shocks
Zimbardo, Gaetano; Perri, Silvia; Fichtner, Horst +1 more
Context. In-situ spacecraft observations recently suggested that the transport of energetic particles accelerated at heliospheric shocks can be anomalous, i.e. the mean square displacement can grow non-linearly in time. In particular, a new analysis technique has permitted the study of particle transport properties from energetic particle time pro…
Composition of inner-source heavy pickup ions at 1 AU: SOHO/CELIAS/CTOF observations. Implications for the production mechanisms
Wimmer-Schweingruber, R. F.; Berger, L.; Drews, C. +1 more
Context. Pickup ions in the inner heliosphere mainly originate in two sources, one interstellar and one in the inner solar system. In contrast to the interstellar source that is comparatively well understood, the nature of the inner source has not been clearly identified. Former results obtained with the Solar Wind Ion Composition Spectrometer on-…
The low energy magnetic spectrometer on Ulysses and ACE response to near relativistic protons
Filipe Maia, Dalmiro Jorge; Gonçalves, Patrícia; Morgado, Bruno +2 more
Aims: We show that the Heliosphere Instrument for Spectra Composition and Anisotropy at Low Energies (HISCALE) on board the Ulysses spacecraft and the Electron Proton Alpha Monitor (EPAM) on board the Advance Composition Explorer (ACE) spacecraft can be used to measure properties for ion populations with kinetic energies in excess of 1 GeV. T…