Martinet, S., Meynet, G., Ekström, S., Simón-Díaz, S., Holgado, G., Castro, N., Georgy, C., Eggenberger, P., Buldgen, G., Salmon, S., Hirschi, R., Groh, J., Farrell, E., & Murphy, L. (2021). Convective core sizes in rotating massive stars: I. Constraints from solar metallicity OB field stars. Astronomy & Astrophysics, 648, Article A126. https://doi.org/10.1051/0004-6361/202039426