Fig. A.1
Spectral energy distribution; data from X-Shooter (black line), other data from Sitko et al. (2004, black symbols); model photosphere at 13 000 K (Kurucz 1993, gray line) and at d = 500 pc. The model is reddened with AV = 0.4 mag using the extinction law by Cardelli et al. (1989). The vertical dotted line corresponds to the stellar-to-total flux ratio in the K-band (λ = 2.16 μm), f = 0.08.
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