期刊
PHYSICS OF THE HELIOSPHERE: A 10 YEAR RETROSPECTIVE
卷 1436, 期 -, 页码 116-123出版社
AMER INST PHYSICS
DOI: 10.1063/1.4723598
关键词
Heliosphere; Heliosheath; Particle Acceleration
资金
- Directorate For Geosciences [1043012] Funding Source: National Science Foundation
- Div Atmospheric & Geospace Sciences [1043012] Funding Source: National Science Foundation
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.
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