Ion/electron heating associated with low-frequency turbulence (Invited)

Details Ion/electron heating associated with low-frequency turbulence (Invited) Ion/electron heating associated with low-frequency turbulence (Invited)

Dec 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010agufmsh54b..01d&link_type=abstract

American Geophysical Union, Fall Meeting 2010, abstract #SH54B-01

Physics

Plasma Physics

[7839] Space Plasma Physics / Nonlinear Phenomena

Scientific paper

The solar wind is an extraordinarily well-diagnosed turbulent plasma. The range of processes and parameters found in the solar is very broad. No single physical model that is tractable (i.e., currently computable) describes the full range of phenomena of interest. For turbulence dynamics that are slow compared to the ion cyclotron frequency, gyrokinetic theory and simulations are powerful tools that can be used to predict quantities such as power spectra, ion and electron heating rates, and minor ion heating rates. We present a new, fully spectral gyrokinetic simulation code (AstroGKS) together with predictions for these quantities across a range of plasma parameters. We focus on the role of the free energy cascade and the associated generation of structure in the velocity-space distribution function, which is closely associated with the turbulent heating of each plasma species.

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