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Radial and Latitudinal Variations of the Energetic Particle Response to ICMEs
Lario, D.
We present energetic particle observations during events in which the interplanetary counterpart of a single coronal mass ejection (ICME) has been observed by spacecraft widely separated in radial distance and latitude. The effects that ICMEs have on energetic particle intensities depend on (1) the ability of ICMEs to drive strong shocks able to a…
KET Ulysses Observations of SEP in and out of the Ecliptic
Heber, Bernd; Struminsky, Alexei
Observations of eight solar energetic particle (SEP) events in the polar heliospheric regions and six events near the Jupiter orbit and their implications for the current paradigm of particle acceleration and propagation in the heliosphere are discussed. These events are easily identified with well-known episodes of the solar activity in 1992, 199…
Solar Energetic Particle Composition
Klecker, Berndt
Over the last ∼10 years, advanced instrumentation onboard several spacecraft (e.g., WIND, SAMPEX, SOHO, and ACE), extended our ability to explore energy spectra, elemental, isotopic, and ionic charge composition of solar energetic particle (SEP) events in a wide energy range from ∼10 keV/nuc to ∼100 MeV/nuc. Due to the much improved sensitivity of…
Geoeffective Coronal Mass Ejections and Energetic Particles
Valtonen, Eino
Coronal mass ejections (CMEs) can be geoeffective and they are believed to cause major non-recurrent geomagnetic storms. Energetic particles are closely related to the shocks driven by coronal mass ejections in the interplanetary medium. In this paper, the geoeffectiveness of CMEs is reviewed and the means how energetic particle observations can b…