Effects of corotating interaction regions on ULYSSES high energy particles

Technical Report · Fri Sep 01 04:00:00 EDT 1995

DOI:https://doi.org/10.2172/112335· OSTI ID:112335

Droege, W; Kunow, H ^[1]; Raviart, A ^[2]

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1. Kiel Univ. (Germany). Inst. fuer Kernphysik
2. 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., 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
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
ACCELERATION
EXPERIMENTAL DATA
LATITUDE EFFECT
RADIATION FLUX
SHOCK WAVES
SOLAR ATMOSPHERE
SOLAR ELECTRONS
SOLAR PARTICLES
SOLAR PROTONS
VARIATIONS