Open Access

Table A.1

UV Integrated Fluxes

Spectral
Type
O2 MR
(% PAL)
TOA flux
(W/m2)
Kozakis et al. (2022)
Surface Flux (W/m2)
Surface Flux Normalized to Kozakis et al. (2022)
10% PAL N2O 1000% PAL N2O
UVB Fluxes (280–315 nm)

G0V 100 22.35 1.5e+00 0.72 1.84
G0V 10 22.35 1.4e+00 0.88 1.47
G0V 1 22.35 2.4e+00 0.97 1.13
G0V 0.1 22.35 5.9e+00 1.05 0.84

Sun 100 16.18 1.6e+00 0.74 1.69
Sun 10 16.18 1.6e+00 0.89 1.43
Sun 1 16.18 2.7e+00 0.98 1.13
Sun 0.1 16.18 5.6e+00 1.05 0.90

K2V 100 4.8 6.8e-01 0.79 1.67
K2V 10 4.8 7.4e-01 0.92 1.39
K2V 1 4.8 1.2e+00 0.97 1.13
K2V 0.1 4.8 2.2e+00 1.04 0.95

K5V 100 0.68 9.8e-02 0.90 1.60
K5V 10 0.68 1.4e-01 0.95 1.24
K5V 1 0.68 2.3e-01 0.99 1.02
K5V 0.1 0.68 3.4e-01 1.02 0.92

M5V 100 3.5e-02 6.5e-03 0.98 1.04
M5V 10 3.5e-02 1.0e-02 0.99 1.00
M5V 1 3.5e-02 1.6e-02 1.00 0.96
M5V 0.1 3.5e-02 2.0e-02 1.01 0.94

UVC Fluxes (121.6–280 nm)

G0V 100 11.2 3.8e-27 2.3e-02 1.5e+10
G0V 10 11.2 1.8e-08 5.9e-01 3.1e+00
G0V 1 11.2 1.7e-04 1.0e+00 5.2e-01
G0V 0.1 11.2 1.7e-02 1.3e+00 1.9e-01

Sun 100 6.7 2.8e-21 4.1e-06 8.8e+08
Sun 10 6.7 3.3e-08 6.0e-01 3.9e+00
Sun 1 6.7 2.3e-04 1.0e+00 7.2e-01
Sun 0.1 6.7 1.5e-02 1.4e+00 3.2e-01

K2V 100 1.4 1.1e-18 2.0e-05 6.0e+08
K2V 10 1.4 1.8e-08 6.8e-01 4.1e+00
K2V 1 1.4 1.0e-04 9.8e-01 8.4e-01
K2V 0.1 1.4 1.0e-02 1.7e+00 4.6e-01

K5V 100 0.16 2.1e-21 7.8e-03 6.6e+08
K5V 10 0.16 8.4e-09 7.8e-01 2.3e+00
K5V 1 0.16 5.4e-05 1.0e+00 5.7e-01
K5V 0.1 0.16 4.7e-03 1.3e+00 2.8e-01

M5V 100 2.7e-02 9.8e-21 3.7e-01 7.4e+00
M5V 10 2.7e-02 4.1e-09 9.7e-01 5.9e-01
M5V 1 2.7e-02 3.8e-05 1.0e+00 4.0e-01
M5V 0.1 2.7e-02 1.1e-03 1.1e+00 3.6e-01

Notes. Abbreviations: MR = mixing ratio; PAL = present atmospheric level; TOA = top of atmosphere

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