Fig. A.1.
Photometric observations of BD+79°156 (left panel) and o1 Ori (right panel) compared with the synthetic spectral energy distribution generated using the MARCS model atmospheres with the parameters listed in Table 1. All photometric observations were retrieved from SIMBAD (Wenger et al. 2000). We note that in the two stars, the evident UV excess is in the bluest flux point.
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