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Table 2

Parameterizations of energy spectra of protons and nuclei at 1 AU for LISA.

Solar minimum Solar maximum

Primary Particle A b α β A b α β
Protons 18 000 0.65 3.66 0.87 18 000 2.17 3.66 0.87
Helium 850 0.99 3.10 0.35 850 2.17 3.10 0.35
Carbon 28 1.05 3.25 0.50 28 1.15 3.75 1.00
Nitrogen 7 1.05 3.25 0.50 7 1.15 3.75 1.00
Oxygen 25.2 1.05 3.25 0.50 25.2 1.15 3.75 1.00
Iron 2.3 1.05 3.25 0.50 2.3 1.15 3.75 1.00

Notes. ϕ=200 MV/c at solar minimum and ϕ=1200 MV/c at solar maximum. A is measured in protons/(m2 sr s GeVα+β+1), b in GeV, and α and β are pure numbers.

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