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Table 5:

The unabsorbed UV flux at Earth and intensity at the stellar photosphere, at the wavelength relevant to the radiative pumping of the f transition for the N  VI, O  VII, and Ne  IX triplets, derived from an IUE spectrum of $\beta $ Cep. $F_\lambda $ in units of erg cm-2 s-1 Å-1, $I_\lambda $ in units of erg cm-2 s-1 Å-1 sr-1.
  EB-V VI (1906 Å) VII (1637 Å) Ne  IX (1270 Å)
$F_\lambda $ 0.00 $3.8\times10^{-9}$ $5.6\times10^{-9}$ $1.1\times10^{-8}$
$I_\lambda $ 0.00 $1.1\times10^{9}$ $1.6\times10^{9}$ $3.2\times10^{9}$
T 0.00 19 995 21 227 23 969
$F_\lambda $ 0.04 $5.1\times10^{-9}$ $7.4\times10^{-9}$ $1.6\times10^{-8}$
$I_\lambda $ 0.04 $1.5\times10^{9}$ $2.1\times10^{9}$ $4.6\times10^{9}$
T 0.04 21 674 22 701 25 899

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