TABLES AND INTERCOMPARISONS OF EVOLUTIONARY SEQUENCES OF MODELS FOR MASSIVE STARS

Tables of evolutionary sequences of models for massive stars have been prepared for a variety of physical input parameters that are normally treated as "free." These parameters include the interior convective mixing scheme, the mixing length in the outer convective envelope, the rate of stellar wind mass loss, the initial stellar mass, and the initial chemical composition. Ranges of specified initial mass and initial chemical composition are M/M⊙= 10-120, Xe = 0.602-0.739, and Ze = 0.021-0.044. The tables cover evolution of the star from the zero-age main sequence to either the end of core hydrogen burning or the end of core helium burning. Differences among the evolutionary tracks are illustrated here primarily in terms of the interior mixing scheme, since the amount and timing of stellar wind mass loss are still very uncertain for initial masses above ∼30 M⊙.