Cosmic rays in the heliosphere.

Abstract

This rapporteur paper covers topics of anomalous cosmic rays, shock acceleration, modulation and transport theory, cosmic-ray gradients, corotating interaction regions, coronal-mass ejections, and solar neutrinos. Among the highlights are: conclusive proof that most anomalous cosmic rays are singly charged, undisputed detection of anomalous cosmic-ray hydrogen, discovery of unexpectedly large anisotropies of pickup ions, observation of pronounced solar rotational modulation of cosmic-ray fluxes to the highest heliolatitudes (≡80°) probed by the Ulysses spacecraft, and new measurements of modulation effects sensitive to particle charge sign.