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Cosmic Rays at High Heliolatitudes
Potgieter, M. S.; Heber, B.
The Ulysses spacecraft has been the first to orbit the Sun over its poles and to explore the heliosphere at these high heliolatitudes. It has now completed two fast latitude scans, one at solar minimum and one at solar maximum. Since its launch in October 1990, this mission has led to several surprising discoveries concerning energetic particles, …
Energetic Particle Observations
Simnett, G. M.; Lario, D.; Klecker, B. +14 more
The characteristics of solar energetic particles (SEP) as observed in interplanetary space provide fundamental information about the origin of these particles, and the acceleration and propagation processes at the Sun and in interplanetary space. Furthermore, energetic particles provide information on the development and structure of coronal mass …
ICMEs in the Outer Heliosphere and at High Latitudes: An Introduction
Richardson, J. D.; von Steiger, R.
Interplanetary coronal mass ejections (ICMEs) are observed at all latitudes and distances from which data are available. We discuss the radial evolution of ICMEs out to large distances and ICME properties at high latitudes. The internal pressure of ICMEs initially exceeds the ambient solar wind pressure and causes the ICMEs to expand in radial wid…
ICMEs at High Latitudes and in the Outer Heliosphere. Report of Working Group H
Lario, D.; Balogh, A.; Rodriguez, L. +14 more
Interplanetary coronal mass ejections (ICMEs) propagate into the outer heliosphere, where they can have a significant effect on the structure, evolution, and morphology of the solar wind, particularly during times of high solar activity. They are known to play an important role in cosmic ray modulation and the acceleration of energetic particles. …