Variability of coronal structures and ion components in the solar wind

Details Variability of coronal structures and ion components in the solar wind Variability of coronal structures and ion components in the solar wind

Oct 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991czjph..41.1001z&link_type=abstract

Czechoslovak Journal of Physics (ISSN 0011-4626), vol. 41, Oct. 1991, p. 1001-1008.

Physics

1

Alpha Particles, Ion Motion, Solar Corona, Solar Wind, Frequency Ranges, Plasma Density, Solar Magnetic Field, Variability

Scientific paper

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 exp -5 to 10 exp -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 exp -3 to 3 Hz.

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