Image Details
Caption: Figure 2.
The model of the RM and CLV (see Section 3.2) around the Na I doublet, normalized by the out-of-transit model spectrum, in the stellar rest frame. The horizontal red dashed lines mark the first and fourth contacts of the transit event. The black tilted dashed line represents the trace of the planetary orbital motion.
© 2026. The Author(s). Published by the American Astronomical Society.