Fig. 5
Periodogram of the activity indices for Gl 378. From top to bottom panels: Hα
index, log(
) index, Na index, and CCF bisector. The horizontal lines indicate the 50 and 10% FAP levels. The red vertical dashed line marks the orbital period of Gl 378 b. The shaded grey region indicates the probable rotation period, as estimated from the log(
).
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