\journalname
\label{aiphe}Astronomy&AstrophysicsReview
Detailed comparison of the observed properties of AI Phe \citep{aiphe} with models for the observed masses from the Yonsei-Yale \citep[solid lines;][]{yi, demarque} and Victoria codes (VandenBerg, priv. comm.; dashed). The latter extend only until they reach the measured values. Shaded areas indicate the uncertainty in the track locations due to the 0.4% error in the masses. Models for the primary are drawn with heavier lines. Asterisks on the Yonsei-Yale primary track indicate the best age of that star and changes of \(\pm\)1%, and are repeated on the secondary track to illustrate the different speed of evolution.