Abstract
The main features of the latest version of the evolutionary code FRANEC (Frascati Raphson Newton Evolutionary Code) are presented along with a set of evolutionary tracks, associated isochrones suitable for H-burning stars in globular clusters of low and intermediate metallicity. The numerical algorithms and the physical inputs adopted in the code are described, and the fitting of the sun and comparisons of selected tracks with previous evaluations are made. The influence of the equation of state for partially ionized matter on the path followed by a star in the HR diagram is addressed. Fitting the globular clustes M68, M3, M5, and NGC 362 leads to the conclusion that an age of 16 Gyr for all these clusters is compatible with the present isochrones. 63 refs.
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