Small-Scale Plasma Fluctuations in Fast and Slow Solar Wind Streams

被引:6
作者
Riazantseva, M. O. [1 ]
Rakhmanova, L. S. [1 ]
Zastenker, G. N. [1 ]
Yermolaev, Yu. I. [1 ]
Lodkina, I. G. [1 ]
Chesalin, L. S. [1 ]
机构
[1] Russian Acad Sci, Space Res Inst, Moscow 117997, Russia
基金
俄罗斯科学基金会;
关键词
DENSITY-FLUCTUATIONS; QUASI-PARALLEL; TURBULENCE; FEATURES;
D O I
10.1134/S0010952519060078
中图分类号
V [航空、航天];
学科分类号
08 ; 0825 ;
摘要
This study gives a comparison of characteristics of small-scale ion flux fluctuations based on measurements of the SPEKTR-R spacecraft in slow and fast solar wind streams. Fast quasi-stationary streams and fast disturbed streams, associated with transient phenomena in the solar corona, are considered separately. The use of high-time-resolution data from the Bright Monitor of Solar Wind (BMSW) instrument makes it possible to analyze plasma fluctuations in a wide range of scales, including small scales, where kinetic effects can make a significant contribution. It is shown in the study that the nature of small-scale fluctuations can significantly differ in fast streams with the same mean solar wind velocity but having a different nature.
引用
收藏
页码:434 / 442
页数:9
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