Radio wave distortion effects serve as established probes of solar corona and wind turbulence parameters, with SKA expected to expand observational capabilities.
Multiscale nature of the dissipation range in gyrokinetic simulations of Alfv\'enic turbulence
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abstract
Nonlinear energy transfer and dissipation in Alfv\'en wave turbulence are analyzed in the first gyrokinetic simulation spanning all scales from the tail of the MHD range to the electron gyroradius scale. For typical solar wind parameters at 1 AU, about 30% of the nonlinear energy transfer close to the electron gyroradius scale is mediated by modes in the tail of the MHD cascade. Collisional dissipation occurs across the entire kinetic range $k_\perp\rho_i\gtrsim 1$. Both mechanisms thus act on multiple coupled scales, which have to be retained for a comprehensive picture of the dissipation range in Alfv\'enic turbulence.
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Radio Wave Propagation as a Probe of the Solar Corona and Solar Wind
Radio wave distortion effects serve as established probes of solar corona and wind turbulence parameters, with SKA expected to expand observational capabilities.