Correction terms, Eqs. (16) and (18), are plotted as a function of mass for a range of radius which is indicated with different colors in both panels. For F_corr (left panel), plots are drawn with three fixed values of h = 2R/r_ph. In the case of h = 0.01, all three lines are almost overlapping (see the inset). A_corr is not affected by h but by f_NS, for which two values are selected (right panel). In both panels, regions for the causality limit (β = GM/Rc² < 1/2.94) are indicated with different colors for different values of h and f_NS. The regions above the boundaries are not allowed physically.