Acceleration and Composition of Solar Wind Suprathermal Tails

Details Acceleration and Composition of Solar Wind Suprathermal Tails Acceleration and Composition of Solar Wind Suprathermal Tails

Jun 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007ssrv..130..153f&link_type=abstract

Space Science Reviews, Volume 130, Issue 1-4, pp. 153-160

Astronomy and Astrophysics

Astrophysics

13

Solar Wind, Stochastic Acceleration, Cosmic Rays

Scientific paper

Observations in the solar wind have revealed important insights into how energetic particles are accelerated in astrophysical plasmas. In circumstances where stochastic acceleration is expected, a suprathermal tail on the distribution function is formed with a common spectral shape: the spectrum is a power law in particle speed with a spectral index of -5. Recent theories for this phenomenon, in which thermodynamic constraints are applied to explain the common spectral shape, are reviewed. As an example of potential extensions of this theoretical work, consideration is given to the acceleration of Anomalous Cosmic Rays in the heliosheath.

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