Heavy ion composition in solar flares at low energies, 1973-1977The composition of solar flare particles near 1 MeV/nucleon has been surveyed for the major species between H and Fe over a four-year period using the IMP-8 ULET instrument. The average composition for the larger flares is found to be remarkably similar to that found by previous studies at energies greater than 10 MeV/nucleon. Variations in abundance are found to be well ordered by atomic number. It is suggested that such a smooth variation in abundances is due to an acceleration mechanism which preserves the main features of the ambient composition of the accelerated material, at least in the larger flares.
Document ID
19810028051
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Mason, G. M. (Max-Planck-Inst. fuer Physik und Astrophysik Garching, Germany)
Gloeckler, G. (Maryland, University College Park, Md., United States)
Hovestadt, D. (Max-Planck-Institut fuer Physik und Astrophysik Garching, Germany)