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Shock acceleration of energetic particles in wave heated corona
Authors:T Laitinen  R Vainio
Institution:

1Space Research Laboratory, VISPA and Department of Physics, FIN-20014 University of Turku, Finland

2Department of Physical Sciences, P.O. Box 64, FIN-00014 University of Helsinki, Finland

Abstract:The solar wind wave heating models require substantial amount of wave power in order to efficiently heat and accelerate solar wind. The level of fluctuations is however limited by energetic particle observations. The simplest cyclotron sweep models result in convection-dominated transport, contradicting observations. However, models incorporating wave-wave -interactions, which cause wave energy to cascade in wavenumber, allow more reasonable energetic particle transport in the interplanetary space. The mean free path of the energetic particles remains still relatively short in the corona, providing favorable conditions for coronal mass ejection (CME) related shock acceleration. We study the consequences of this scenario on the energetic particle production related to CMEs. The role of self-generated waves is also discussed.
Keywords:
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