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Table 3

The measured Na i absorption depth of HD 189733b (CLV effect corrected) and the modelled line depth change due to the CLV effect.

Passband (Å) Planetary absorption depth (%) CLV effect model (%) CLV overall-transit/
(from this work) mid-transit limb-transit overall-transit planetary absorption

0.75 0.414 ± 0.032 –0.082 0.328 0.120 29%
1.5 0.222 ± 0.018 –0.071 0.257 0.091 41%
3.0 0.155 ± 0.011 –0.048 0.126 0.038 24%

Notes. The values are obtained using the average of D1 and D2 lines. Here, the CLV effect are presented in three values: mid-transit (phase = 0), limb-transit (where the line depth change is the largest) and overall-transit (average of all the line depth changes in transit).

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