White et al. 1976

White, R.E., A.H. Vaughan, Jr., G.W. Preston, and J.P. Swings, 1976: Isotopic abundances of HG in mercury stars inferred from HG II λ3984. Astrophys. J., 204, 131-140.

Wavelengths of Hg II λ3984 in 30 Hg stars are distributed uniformly from the value for the terrestrial mix to a value that corresponds to nearly pure ²⁰⁴Hg. The wavelengths are correlated loosely with effective temperatures inferred from Q(UBV). Relative isotopic abundances derived from partially resolved profiles of λ3984 in ι CrB, χ Lup, and HR 4072 suggest that mass-dependent fractionation has occurred in all three stars. We suggest that such fractionation occurs in all Hg stars. Accordingly, we present scheme whereby isotopic compositions can be inferred from a comparison of stellar wavelengths and equivalent widths with those calculated for a family of fractionated isotopic mixes. Theoretical profiles calculated for the derived isotopic composition agree well with high-resolution interferometric profiles obtained for three of the stars.

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White, R.E., Vaughan, A.H., Jr., Preston, G.W., and Swings, J.P.: Isotopic abundances of HG in mercury stars inferred from HG II λ3984, Astrophys. J., 204, 131-140, 1976.

White, R.E., A.H. Vaughan, Jr., G.W. Preston, and J.P. Swings (1976), Isotopic abundances of HG in mercury stars inferred from HG II λ3984, Astrophys. J., 204, 131-140.

White, R.E., A.H. Vaughan, Jr., G.W. Preston, and J.P. Swings, 1976: Isotopic abundances of HG in mercury stars inferred from HG II λ3984. Astrophys. J., 204, 131-140.

White, R.E., Vaughan, A.H., Jr., Preston, G.W., & Swings, J.P. 1976, Astrophys. J., 204, 131.

White RE, Vaughan AH Jr, Preston GW, Swings JP. Isotopic abundances of HG in mercury stars inferred from HG II λ3984, Astrophys J 1976;204:131-140.

R.E. White, A.H. Vaughan, Jr., G.W. Preston, J.P. Swings, Astrophys. J. 204, 131-140 (1976).