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Ulysses cosmic-ray investigations extending from the south to the north polar regions of the Sun and heliosphere.
Simpson, J. A.
The recent rapid transit of Ulysses from the solar south polar to the north polar region has confirmed the earlier findings by the COsmic-ray and Solar-Particle INvestigations (COSPIN) international consortium and has yielded additional discoveries that are important for understanding heliospheric modulation. High-resolution isotopic measurements …
3D heliospheric simulations of cosmic rays in the light of Ulysses.
Jokipii, J. R.; Kota, J.
Recent Ulysses observations in the polar regions of the heliosphere have provided fundamental new insights into the modes of cosmic-ray transport in the heliosphere. Ulysses discovered variations in the magnetic field which are large enough to produce significant cosmic-ray effects, and which are consistent with a previous prediction. In addition …
The Ulysses mission: an introduction.
Smith, E. J.; Marsden, R. G.
On 30 September 1995, Ulysses completed its initial, highly successful, survey of the polar regions of the heliosphere in both southern and northern hemispheres, thereby fulfilling its prime mission. The results obtained to date are leading to a revision of many earlier ideas concerning the solar wind and the heliosphere. Now embarking on the seco…
Cosmic rays in the heliosphere.
Bieber, J. W.
This rapporteur paper covers topics of anomalous cosmic rays, shock acceleration, modulation and transport theory, cosmic-ray gradients, corotating interaction regions, coronal-mass ejections, and solar neutrinos. Among the highlights are: conclusive proof that most anomalous cosmic rays are singly charged, undisputed detection of anomalous cosmic…
Observations of energetic particles with EPAC on Ulysses in polar latitudes of the heliosphere.
Franz, M.; Keppler, E.; Quenby, J. J. +3 more
Measurements with the EPAC energetic-charged-particle instrument aboard Ulysses show between -15° and -65° ions and, to some extent, also electrons apparently accelerated by shocks associated with a corotating interaction region (CIR) operating at low latitudes. Particles could have reached Ulysses along magnetic-field lines which connect to the s…
Low-energy interplanetary charged particles: solar south pole to solar north pole and high heliolatitudes.
Pick, M.; Anderson, K. A.; Krimigis, S. M. +9 more
Low-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 revi…
The Ulysses space mission.
Poletto, G.; Noci, G.; Monsignori Fossi, B. C.
The authors describe briefly the collaborative ESA-NASA Ulysses mission which will provide, for the first time in the history of the solar-system exploration, in situ observations of the heliosphere over a broad range of heliographic latitudes. Launched on October 6, 1990, Ulysses has been injected in a high-inclination orbit by means of a gravity…