Abstract
We have computed the vibrational stability of nonradial modes of oscillation in the quasi-adiabatic approximation for slowly, uniformly rotating stars, in the Cowling approximation. Only first-order effects are taken into account in the ratio of rotation angular frequency to oscillation angular frequency. We have applied the theory to iron white dwarf models and to zero-age main-sequence modesl. We find that slow rotation renders prograde traveling waves of nonradial oscillation (m<0) slightly more unstable than retrograde modes, essentially independently of the stability of the model in a given mode in the nonrotating state.
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