论文信息 - Low-energy interplanetary charged particles: Solar south pole to solar north pole and high heliolatitudes

Low-energy interplanetary charged particles: Solar south pole to solar north pole and high heliolatitudes

SummaryLow-energy (≳50 keV) charged particles measured by the HI-SCALE instrument on the Ulysses spacecraft provided unique information on the particle composition and intensity in both polar regions of the Sun. Further, the rapid 160° South-to-North solar transit of Ulysses in early 1995 yielded new information on heliospheric structure. This paper reviews several of the key HI-SCALE results, including the latitude dependence of particle acceleration by corotating interaction regions, particle propagation from equatorial regions of the Sun to high heliolatitudes, and the appearance of numerous periodic components in the power spectra of the particle variations, the frequencies of which are consistent with those estimated (but not as yet confirmed) for gravity-mode oscillations of the Sun.

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