NASA NTRS · 19720004077
Charge composition of solar cosmic rays
Abstract
The composition of energetic solar particles is reviewed for all solar events in which measurements on helium and heavier nuclei have been made simultaneously in the same detector during a given particle event. For nuclei of equal charge-to-mass ratio, the relative abundances have been the same within uncertainties in every measurement, and consistent with spectroscopic photospheric estimates. Iron has a slightly different charge-to-mass ratio but is still of considerable interest. An observation of the Fe/O in the January 24, 1971 solar event has provided a second determination of this value.
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Bertsch, D. L., Fichtel, C. E., Reames, D. V.. 1971-11-01. Charge composition of solar cosmic rays. https://ntrs.nasa.gov/citations/19720004077
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