Authors: Wurz, P., R.F. Wimmer-Schweingruber, A.B. Galvin,
F.M. Ipavich, B. Klecker, E. Möbius, M. Popecki, and T. Zurbuchen.
Reference:
Abstract:
Charge state and composition measurements of CME-related solar wind and of
Gradual Solar Energetic Particle (SEP) Events provide information on their
coronal origins and acceleration processes. In this talk we combine in
situ observations from SOHO, Wind, and ACE for selected ISTP/IACG CDAW
intervals for an overview and comparison of plasma and suprathermal
elemen- tal and charge state composition during CME-related events.
Variations exist from one CME event to another, and occasionally exotic
compositional signa- tures are observed (e.g., Wurz et al., 1998;
Gloeckler et al., 1999; Moebius et al., 1999). In at least one CME-related
event (May 2{3 1998), the solar wind charge states are not only extremely
unusual (Gloeckler et al., 1999), but show a possible correspondence with
the charge states measured in the associated Gradual SEP (Popecki et al.,
1999; Wimmer-Schweingruber et al., 1999).