[Heber 1995 c]
High Energy Cosmic Ray Nuclei Results on Ulysses:
1. Mission Overview
B. Heber, A. Raviart, C. Paizis, W. Dröge,
R. Ducros, P. Ferrando, H. Kunow, R. Müller-Mellin,
C. Rastoin, K. Röhrs, H. Sierks and G. Wibberenz.
High Energy Cosmic Ray Nuclei Results on Ulysses:
1. Mission Overview
Space Science Reviews, 73, 391-396. 1995
Contents
The cosmic ray flux observed with the Kiel Electron Telescope on board the
ULYSSES spaceprobe varies with solar activity as well as with heliospheric
position.
Determination of the latitudinal gradients require a careful analysis of the
influences of the current sheet tilt angle, the number of major solar flares,
interplanetary shocks and interaction regions evolving in the expanding solar
wind.
In this paper we concentrate on nuclei with rigidity above 1 GV.
We discuss the effects of the variable solar activity in the declining phase of
the present solar cycle and the variation with radial distance as a basis for
separating latitudinal effects.
We show that during this phase of the solar cycle modulation of GV nuclei is
ordered by temporal evolution, radial distance and negligible latitudinal
effects even at latitudes between 30° and 50° south.
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