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www.ann-geophys.net/21/1249/2003/
doi:10.5194/angeo-21-1249-2003
© European Geosciences Union 2003
Magnetic topology of coronal mass ejection events out of the ecliptic: Ulysses/HI-SCALE energetic particle observations
1Democritus University of Thrace, Department of Telecommunications and Space Physics, Xanthi, 67100, Greece
2National Observatory of Athens, ISARS, Athens, 15236, Greece
Abstract. Solar energetic particle fluxes (Ee > 38 keV) observed by the ULYSSES/HI-SCALE experiment are utilized as diagnostic tracers of the large-scale structure and topology of the Interplanetary Magnetic Field (IMF) embedded within two well-identified Interplanetary Coronal Mass Ejections (ICMEs) detected at 56° and 62° south heliolatitudes by ULYSSES during the solar maximum southern high-latitude pass. On the basis of the energetic solar particle observations it is concluded that: (A) the high-latitude ICME magnetic structure observed in May 2000 causes a depression in the solar energetic electron intensities which can be accounted for by either a detached or an attached magnetic field topology for the ICME; (B) during the traversal of the out-of-ecliptic ICME event observed in July 2000 energetic electrons injected at the Sun are channeled by the ICME and propagate freely along the ICME magnetic field lines to 62° S heliolatitude.
Key words. Interplanetary physics (energetic particles; interplanetary magnetic fields)
Full Article (PDF, 1072 KB)
Citation: Malandraki, O. E., Sarris, E. T., and Tsiropoula, G.: Magnetic topology of coronal mass ejection events out of the ecliptic: Ulysses/HI-SCALE energetic particle observations, Ann. Geophys., 21, 1249-1256, doi:10.5194/angeo-21-1249-2003, 2003. Bibtex EndNote Reference Manager XML
