Observations of protons not exceeding 1 MeV/nuc and ions during the September 1974 series of flaresResults are presented on observations of energetic particles made during an active solar period in September 1974, concentrating in particular on an ESP (Energetic Storm Particle) event observed in association with an interplanetary shock wave on 21 September. It is shown that the observed variations in the proton to alpha particle ratios and spectral indices can be explained either by pile-up or by acceleration models of ESP events.
Document ID
19760043959
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Ipavich, F. M. (Arizona Univ. Tucson, AZ, United States)
Gloeckler, G. (Maryland, University College Park, Md., United States)
Fan, C. Y. (Arizona, University Tucson, Ariz., United States)
Hovestadt, D. (Max-Planck-Institut fuer extraterrestrische Physik Garching, Germany)