Flux calibrated VLT/XSHOOTER spectrum obtained on Feb. 25, 2012, is shown (thick black curve) over the 310–2470 nm wavelength range on a logarithmic scale. Regions affected by strong telluric absorption in the JHK bands are clipped from the spectrum. The red squares corresponds to V and RJ photometry obtained at CrAO on Feb. 26, 2012 (V = 14.92, RJ = 13.30), and the orange squares to JHK photometry obtained at Calar Alto on Dec. 13, 2011. The upper spectrum (gray curve) is a Kurucz model computed for AA Tau’s parameters reported in Bouvier et al. (1999) (Teff = 4000 K, R = 1.85 R⊙, d = 140 pc, AV = 0.78 mag) and the overplotted black squares correspond to the UBVRIJHK bright-state photometry from the same study. The lower spectrum (blue curve) is the same Kurucz model reddened by AV = 3.78 mag.
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