Types of spectra of ion flux fluctuations in the solar wind and magnetosheath at the interface between inertial and dissipative ranges


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This paper considers the features of turbulent characteristics of ion flux variations in the solar wind and magnetosheath at the scale of 0.01–10 Hz based on measurements on the BMSW plasma spectrometer (Plasma-F experiment) mounted on the Spektr-R satellite. A variability of types of fluctuation frequency spectra is shown. Fluctuation spectra with certain features in the transition region from the inertial to the dissipative range are selected (a sharp knee in the fluctuation spectrum, plateau and peak in the knee, and a nonlinear spectrum bend at high frequencies). The degree of difference between the observed spectra and the spectra characteristic of the developed isotropic turbulence in the Kolmogorov model is determined. The probability of observation of the spectra of certain types is estimated. The features of fluctuation spectra in the solar wind and magnetosheath are compared for each type of spectra.

作者简介

M. Riazantseva

Space Research Institute

编辑信件的主要联系方式.
Email: orearm@gmail.com
俄罗斯联邦, Moscow

L. Rakhmanova

Space Research Institute

Email: orearm@gmail.com
俄罗斯联邦, Moscow

G. Zastenker

Space Research Institute

Email: orearm@gmail.com
俄罗斯联邦, Moscow

Yu. Ermolaev

Space Research Institute

Email: orearm@gmail.com
俄罗斯联邦, Moscow

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