Computer Science
Scientific paper
May 1995
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995sci...268.1010l&link_type=abstract
Science, Volume 268, Issue 5213, pp. 1010-1013
Computer Science
18
Scientific paper
The heliosphere instrument for spectrum, composition, and anisotropy (HISCALE) recorded the fluxes of low-energy ions and electrons (>50 kiloelectron volts) when Ulysses crossed the southern solar polar region and revealed that the large-scale structure of the heliosphere to at least ~-75^circ was significantly influenced by the near-equatorial heliospheric current sheet. Electrons in particular were accelerated by the current sheet-produced and poleward-propagating interplanetary reverse shock at helioradii far from the Ulysses location. At heliolatitudes higher than ~-75^circ on the Ulysses ascent to the pole and ~-50^circ on the descent, small, less regular enhancements of the lowest energy electron fluxes were measured whose relations to the current sheet were less clear. The anomalous component of low-energy (~2 to 5 megaelectron volts per nucleon) oxygen flux at the highest heliolatitudes was found to be ~10-8 [per square centimeter per second per steradian (per kiloelectronvolt per nucleon)]; the anomalous Ne/O ratio was ~0.25.
Anderson Katharine A.
Armstrong Thomas P.
Gold Robert E.
Hawkins Samuel Edward III
Krimigis Stamatios M.
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