Luminosity due to eccentricity tides for WASP-107 b, as a function of ﹩{Q}_{p}^{{\prime} }﹩, normalized by ﹩{L}_{{\rm{irr}}}={L}_{\star }{({R}_{p}/2a)}^{2}﹩. The solid and dashed lines correspond to the 68% and 95% upper limits on the tidal luminosity. Based on JWST atmospheric observations, D. K. Sing et al. (2024) measured an internal temperature of 460 ± 40 K (blue shaded region). For eccentricity tides to be the source of this internal heat flux, the tidal quality factor would have to be ﹩{\mathrm{log}}_{10}{Q}_{p}^{{\prime} }\lesssim 2.5﹩, given our 1σ upper limit on e.