Sastri and Stothers 1978
Sastri, V.K., and R. Stothers, 1978: Bump Cepheids: The mass anomaly as an opacity effect. Astrophys. J., 225, 939-949, doi:10.1086/156560.
Nonlinear calculations of models for bump Cepheids indicate that most of the basic features of these stars can be reproduced well by models having normal to nearly normal evolutionary masses and normal helium abundances, if Carson's opacities are adopted. The trends of the properties of the models with various physical parameters are otherwise very similar to those obtained by other authors with the Los Alamos opacities (which have led to Cepheid masses of half the evolutionary masses). Difficulties with the resonance hypothesis of Simon and Schmidt as an explanation of the bump are discussed.
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Sastri, V.K., and Stothers, R.: Bump Cepheids: The mass anomaly as an opacity effect, Astrophys. J., 225, 939-949, doi:10.1086/156560, 1978.
Sastri, V.K., and R. Stothers (1978), Bump Cepheids: The mass anomaly as an opacity effect, Astrophys. J., 225, 939-949, doi:10.1086/156560.
Sastri, V.K., and R. Stothers, 1978: Bump Cepheids: The mass anomaly as an opacity effect. Astrophys. J., 225, 939-949, doi:10.1086/156560.
Sastri, V.K., & Stothers, R. 1978, Astrophys. J., 225, 939, doi:10.1086/156560.
Sastri VK, Stothers R. Bump Cepheids: The mass anomaly as an opacity effect, Astrophys J 1978;225:939-949. doi:10.1086/156560.
V.K. Sastri, R. Stothers, Astrophys. J. 225, 939-949, doi:10.1086/156560 (1978).
