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Fig. 4

image

CCFs of the transmission spectrum corrected from the telluric features (blue) and non-corrected (gray) in the stellar rest frame using the water vapor mask at 296 K for the three nights (panel a: 7 September 2006; panel b: 19 July 2007; and panel c: 28 August 2007). The dashed line shows the observer’s radial velocity, where telluric residuals would be expected.

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