VARIABILITY OF CORONAL STRUCTURES AND ION COMPONENTS IN THE SOLAR-WIND

被引:1
|
作者
ZASTENKER, G
AVANOV, L
YERMOLAEV, Y
BOCHSLER, P
NEMECEK, Z
SAFRANKOVA, J
机构
[1] UNIV BERN, DEPT PHYS, CH-3000 BERN, SWITZERLAND
[2] CHARLES UNIV, FAC MATH & PHYS, CS-18000 PRAGUE 8, CZECHOSLOVAKIA
关键词
D O I
10.1007/BF01598973
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
The variations of solar wind ion fluxes of protons and alpha-particles are studied in a wide time-scale: from parts of a second to several months. A "persistence time" of about 60 hours was obtained for the large-scale variations of alpha-particles. Power density spectra of velocity, density and magnetic field were studied in the frequency range from 10(-5) to 10(-3) Hz. Middle-scale fluctuations of both protons and alpha-particles are close to each other and the spectrum for alpha-particles has a somewhat greater slope than that for protons. Estimates of the variations of the flux power density are given in the frequency range from 10(-3) to 3 Hz.
引用
收藏
页码:1001 / 1008
页数:8
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