Different parameters influencing the angular momentum luminosity carried by tidally excited gravity waves (Eq. 14) as a function of stellar age for a M_ZAMS = 1 M_⊙ star with a 1 M_Jup companion orbiting at 1 AU. Shown are the change in radius of the radiative–convective boundary (solid blue), the change in density at this radius (solid orange), the change in tidal forcing (dashed green), and the change in the Brunt-Väisälä frequency squared (dash-dotted red). Stellar evolutionary phases (pre-MS to WD) are indicated.