Abstract
IN a recent communication under this title Bashkin1 has attempted to explain the deficiency of heavy elements in Population II halo stars by arguing that a separation between neutral atoms and ions is possible through electromagnetic means and that, since the ionization potentials of the metals are in general low, they will be confined to the disk while the neutral atoms can diffuse into the halo. This proposal can be severely criticized on several grounds.
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References
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WALLERSTEIN, G., BURBIDGE, E. Deficiency of Metals in Population II Stars. Nature 200, 1081–1082 (1963). https://doi.org/10.1038/2001081a0
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DOI: https://doi.org/10.1038/2001081a0
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