Image Details
Caption: Figure 3.
Sub-kelvin differential temperature measurements of L 98-59 from ESPRESSO and HARPS, with only the error bars for ESPRESSO displayed for clarity. The posterior distributions on the hyperparameters for a quasiperiodic GP regression are shown above with the median GP prediction shown with the orange curve and 1σ uncertainty envelope. The dTemp indicator revealed that L 98-59 is a relatively quiet star with a rotational period of 76.7 ± 1.5 days.
© 2025. The Author(s). Published by the American Astronomical Society.