Image Details
Caption: Figure 16.
The orbital period derivative in milliseconds per year expected for LTT 9779 b given different values of the modified stellar tidal quality factor ﹩{Q}_{* }^{{\prime} }﹩. The right-hand vertical axis shows the expected O − C signal over the current observational baseline and the gray shaded region represents the average timing uncertainty of the data. Three values of ﹩{Q}_{* }^{{\prime} }﹩ are highlighted: (1) derived with Equation (11) from the best-fit orbital decay rate when the Spitzer transit timings were included, (2) predicted with Equation (13) from the tidal forcing period of the system, and (3) the value for WASP-12 from Wong et al. (2022).
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© 2023. The Author(s). Published by the American Astronomical Society.
