Effects of corotating interaction regions on ULYSSES high energy particles
- Kiel Univ. (Germany). Inst. fuer Kernphysik
- CEA Centre d`Etudes Nucleaires de Saclay, 91 - Gif-sur-Yvette (France). Service d`Astrophysique
Since June 1992 the Kiel Electron Telescope on board ULYSSES measures variations of more than 10% in the fluxes of high energy H and He showing a periodicity of about 26 days in coincidence with the passage of corotating interaction regions. (CIR). At low energies MeV protons are accelerated at the shocks of the CIRs. These effects are observed up to high southern latitudes, where the signature of a CIR is no longer visible in plasma or magnetic field data. After passing over the south polar cap ULYSSES has now returned to the solar equator and climbs up to the north pole. In this paper we study the relative intensity variations with latitude and the latitude dependence at solar distances smaller than ever studied before.
- Research Organization:
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Sponsoring Organization:
- National Aeronautics and Space Administration, Washington, DC (United States)
- DOE Contract Number:
- W-7405-ENG-36
- OSTI ID:
- 112335
- Report Number(s):
- LA-UR-95-3128; CONF-9506256-5; ON: DE96000037; CNN: DARA Grant no. 50ON9106
- Resource Relation:
- Conference: 8. international solar wind conference, Dana Point, CA (United States), 26-30 Jun 1995; Other Information: PBD: [1995]
- Country of Publication:
- United States
- Language:
- English
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Effects of corotating interaction regions on Ulysses high energy particles
HIGH LATITUDE ULYSSES OBSERVATIONS OF THE H/HE INTENSITY RATIO UNDER SOLAR MINIMUM AND SOLAR MAXIMUM CONDITIONS