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Anisotropy and Alfvenicity of hourly fluctuations in the fast polar solar wind

Ulysses magnetic and plasma data obtained in the fast polar solar wind are used to study the nature of fluctuations in the frequency range between the turbulent inertial range and the lower-frequency range dominated by quasi-static structures originating at the Sun. For daily variations of hourly averages of the magnetic field components the anisotropy of the fluctuations is less than in the higher-frequency range, and the minimum varianced direction loses its alignment with the magnetic field in favor of a more radial direction as the solar distance increases.

Solar wind Alfvenicity waves anisotropy Ulysses↗

The cosmic ray anisotropy.

Cosmic ray anisotropy may be due to existence of trapped orbits in interplanetary field, sunward flux density gradient or Compton-Getting effect

RADIATION INTENSITY↗