"Full evolution of low-mass white dwarfs with helium and oxygen cores" Panei, J. A., Althaus, L. G., Chen, X., and Han, Z; 2007, MNRAS, 382, 779 Landolt filters: CO-WD sequences with masses 0.3515, 0.3844, 0.3986, 0.4160 and 0.4481 M_sun. Ages are counted from the end of mass transfer. M/Mo: stellar mass (in solar units) Teff: effective temperature log g: logarithm_10 of gravity (g/cm**2) log L/Lo: logarithm_10 of luminosity (in solar units) Age: age in Gyr BC: bolometric correction M_V: absolute magnitude U, B, V, R, I filters