Fig. 7
Top: H-band light curve after year 2000. Bottom: effective temperature measurements from SINFONI spectra. Diamonds: NACO data (fitted); squares: Peeples et al. (2007, for comparison). Dash-dotted, dark grey curve: best-fit two-period model. Dotted, light grey curve: second best-fit model. Vertical lines: dates of interferometric observations: March 2006 (Pott et al. 2008, K-band AMBER), May 2008 (K-band AMBER) and July 2013 (H-band PIONIER). Crosses: Teff from SINFONI spectra and the corresponding magnitude estimated using the best fit model; the vertical line of each cross indicates only the statistical uncertainty (see text, Sect. 3.3).
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