Fig. 3
Observed transmission light curves for D1 and D2 measured using a 0.75Å band. The D2 curve is shifted down by 0.15. The data is from HARPS observations of HD 189733b’s transit and are binned every 0.02 phase step. The black solid lines are the best-fit combined models (the CLV effect plus the Na i absorption). The average of these two light curves is the upper-left plot in Fig. 2.
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