Fig. 1
Predicted rates of period change for stars crossing the Cepheid instability strip assuming different prescriptions for Cepheid mass loss: Ṁ = 10-9 M⊙ yr-1 (left) and 10-6 M⊙ yr-1 (right), the results for the other two cases are nearly indistinguishable. The grey band refers to the measured rate of period change for Polaris (Neilson et al., 2012a).
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