Physics
Scientific paper
Sep 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992esasp.346..315m&link_type=abstract
In ESA, Study of the Solar-Terrestrial System p 315-320 (SEE N93-31674 12-90)
Physics
1
Kolmogorov Theory, Scaling Laws, Solar Protons, Solar Wind, Spectrum Analysis, Temperature Measurement, Helios Project, Heliosphere
Scientific paper
Proton temperature measurements from the Helios mission were analyzed in order to derive spectral and scaling characteristics of temperature fluctuations in the inner heliosphere near 0.3 AU. Special attention is paid to their correlation with the large scale stream structure. Different scaling properties of the fluctuations are obtained in fast and slow wind. The temperature spectra seem to indicate fully developed Gaussian turbulence. However, the pth order structure functions of the temperature fluctuations considerably deviate from Kolmogorov scaling. They indicate intermittency and variable scaling behavior of the temperature differences as a function of the time lag between subsequent measurements. The nature and possible origin of the temperature fluctuations in the solar wind are discussed.
Liu Shujuan
Marsch Eckart
Rosenbauer Helmut
Tu Chia-Ying
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