Spectroscopic observations of TOI-1259A. (a) NEID observations (in green) of the RM effect produced during the transit of TOI-1259Ab, along with the best-fit model in red. Residuals are shown below. (b) Phase-folded observations from SOPHIE (in blue), as well as out-of-transit NEID data of TOI-1259Ab, with the best-fit model in red and the residuals below. (c) Residuals of all the RV data and best-fit model over observation time.