Oxygen-enhanced Models for Globular Cluster Stars. II. Isochrones and Luminosity Functions

Isochrones and luminosity functions (LFs) on the BV photometric system have been constructed for ages from 10 to 18 Gyr for each of the seven values of [Fe/H] = -2.26, -2.03, -1.78, - 1.66, -1.48, -1.26, and -1.03, and for ages from 5 to 18 Gyr for [Fe/H] = -0.78, -0.65, and -0.47. The loci for ages of 10 Gyr or more have been provided mainly for application to photometry of the Galactic globular clusters (GCs); the rest should be useful for interpreting data for old, metal-poor open clusters. Oxygen-to-iron ratios have been assumed that closely follow the relation [O/Fe] = -0.5 [Fe/H], for [Fe/H] ≥ -1.0, and [O.Fe] = -0.2 [Fe/H] + 0.3, for lower iron abundances