Solar modulation of protons and alpha particles at rigidities of 4-10 GV/cThe high statistics and high resolution rigidity spectra from geomagnetic cutoff to 160 GV/c were provided by a superconducting-magnet spectrometer flown on a balloon. The spectra above 8.3 GV/c fit a power law in rigidity for protons and alphas; below 8.3 GV/c, no clear evidence of solar modification is available. The analysis of data from 5.5 to 8.3 GV/c by the Gleeson-Axford model for solar modulation indicated that the modulation parameter was 0.3 + or - 0.05 Gev/nucleon; the spectra below 5.5 GV/c are being analyzed using a portion of the flight data recorded while the balloon was essentially stationary
Document ID
19810028030
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Badhwar, G. D. (NASA Johnson Space Center Houston, Tex., United States)
Golden, R. L. (New Mexico State University Las Cruces, N. Mex., United States)