Radio Scattering Observations of Turbulence in the Solar Wind and the Interstellar Medium. Steven R. Spangler University of Iowa. Basic physics of extracting information on astrophysical plasma turbulence: the radio refractive index.
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Steven R. Spangler
University of Iowa
Turbulence plasma turbulence: the radio refractive index
Bamert, Kallenbach, et al, 2004
Results from Woo and Schwenn, JGR 96, 21227, 1991 plasma turbulence: the radio refractive index
Comparison and compatibility between two sets of observations not thoroughly explored. There is much to learn.
The ISM has powerful shock waves (supernova remnants) that accelerate the cosmic rays. Image from Univ. of Wisconsin WHAM instrument, R. Reynolds, M. Haffner, et al
Spitler and Spangler, ApJ 632, 932, 2005
Speed of irregularities << VA : Irregularities are non-propagating or oblique AIC waves
Density spectrum power law with “bulge” at ion inertial length (Coles and Harmon, 1989ff)
Smooth variation of turbulent intensity with heliocentric distance; no coronal “Kumasphere”. Not unanimous; see Lotova