Note on the Kurucz Catalogue (VI/39)

The tape version of Kurucz’s Model Atmospheres (Astrophys. J., Suppl. Ser. 40, 1, 1979) lists the values of flux moments per frequency unit H_{ν}, for a set of 342 wavelengths from 22.9 to 20000 nm (229 Åto 20 μm).

For each model, the tape version contains 342 values of H_{ν}, followed by the 342 values of H_{ν}^{cont}, flux moments in the continuum.

The relation between H_{ν} and F_{λ} (intensity per wavelength unit (nm)) is

F_{λ} = \frac{4c}{λ^{2}}.H_{ν}

which means that the values log F_{λ} listed in Table 6 of Kurucz’s paper can be retrieved by the formula

log F_{λ} = log(\frac{1.19917.10^{18}}{λ^{2}} .H_{ν})

assuming a velocity of the light of 2.997925.10^{17} nm.s^{−1}