- Conference date: 13–18 March 2011
- Location: Maui, Hawaii
There has been a remarkable discovery in the heliosphere. Ions accelerated in disparate plasma conditions – the quiet solar wind, disturbed conditions downstream from shocks, and throughout the heliosheath – all have the same spectrum, a power law with spectral index of −5 when expressed as a distribution function. An acceleration mechanism has been developed that can account for these observations, a pump mechanism, in which particles are pumped out of a core distribution through a series of compressions and expansions. The derivation of the governing equation of the pump mechanism and some important subtleties in the derivation are discussed.
- Accelerated plasmas
- Particle acceleration
- Particle distribution functions
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