Image Details
Caption: Figure 5.
Top two rows: phase-folded best-fit model (gray line) plotted against RV observations across three distinct temporal segments to account for the long observational baseline. Third row: RV observations along with the best-fit model in phase space of the WASP-18 b orbital period. Bottom row: residuals from the RV measurements.
© 2026. The Author(s). Published by the American Astronomical Society.