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- Title
New method for estimating the absolute flux and energy spectrum of solar cosmic rays based on neutron-monitor data.
- Authors
Krymsky, G. F.; Grigor'ev, V. G.; Starodubtsev, S. A.
- Abstract
A new method is described for estimating the absolute flux of solar cosmic rays based on the data from a single neutron monitor. The method is capable of yielding the energy spectrum at the isotropic phase of a solar flare using the available data from the currently operable worldwide network of cosmic-ray stations. The method is based on the determination of the effective momentum or energy for which the particle flux derived from the neutron-monitor count rate is weakly sensitive to small variations in the exponent of the power-law spectrum. A comparison of the calculations with direct space-borne measurements and calculations by other authors based on the data from the neutron-monitor network shows their satisfactory agreement for the last ground-level enhancement of solar cosmic rays observed on December 13, 2006.
- Subjects
NEUTRONS; SOLAR cosmic rays; SOLAR flares; PARTICLES (Nuclear physics); COSMIC rays
- Publication
JETP Letters, 2008, Vol 88, Issue 7, p411
- ISSN
0021-3640
- Publication type
Article
- DOI
10.1134/S0021364008190016