The elemental abundances of hydrogen through nickel in the low energy cosmic raysThe relative abundances of the elements H through Ni in the galactic cosmic rays have been measured in the energy range 70-280 MeV/nucleon with the University of Chicago cosmic ray telescope on board the satellite IMP-8 from January 1973 to September 1978. Cosmic ray source abundances have been derived by extrapolating the measured composition back to the source. A key factor in the propagation calculation is the use of a pathlength distribution and a solar modulation level shown to be consistent with the secondary to primary ratios and their energy dependence below about 1 GeV/n.
Document ID
19810027989
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Garcia-Munoz, M. (Chicago Univ. Chicago, IL, United States)
Simpson, J. A. (Chicago, University Chicago, Ill., United States)