Context. The Cepheid mass discrepancy, the difference between masses
predicted from stellar evolution and stellar pulsation calculations, is a
challenge for the understanding of stellar astrophysics. Recent models of the
eclipsing binary Cepheid OGLE-LMC-CEP-0227 have suggested that the discrepancy
may be resolved. Aims. We explore for what physical parameters do stellar
evolution models agree with the measured properties of OGLE-LMC-CEP0227 and
compare to canonical stellar evolution models assuming no convective core
overshooting. Methods. We construct state-of-the-art stellar evolution models
for varying mass, metallicity, and convective core overshooting and compare the
stellar evolution predictions with the observed properties. Results. The
observed mass, effective temperature, and radius of the two stars in the binary
system are well fit by numerous combinations of physical parameters, suggesting
a Cepheid mass discrepancy of 10-20% relative to canonical stellar evolution
models. Conclusions. The properties of the observed binary Cepheid suggest that
the Cepheid mass discrepancy is still a challenge and requires more specific
observations, such as the rate of period change, to better constrain and
understand the necessary physics for stellar evolution models to resolve the
discrepancy.Comment: 5 pages, 3 figures, A&A accepte
