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Two of the most Metal-deficient Stars

Published online by Cambridge University Press:  25 April 2016

M. S. Bessel*
Affiliation:
Mount Stromlo and Siding Spring Observatory, Australian National University

Extract

The metal content of stars (and galaxies) is of great interest as it relates to the theories of element formation, and through these to the history of our galaxy, the frequency of supernovae, the star formation rate and even the quasar rate. The kinematics and metallicity of stars have been correlated in a theory of formation of the galaxy by Eggen et al. (1962). Alternate theories (Unsold 1969) have also been proposed. Much work has gone into isolating individual metal deficient stars and determining their abundances, and also the abundances for stars in clusters.

Type
Contributions
Copyright
Copyright © Astronomical Society of Australia 1977

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References

Bessell, M. S., Wickramasinghe, D. T., and Cottrell, P. L. “Cool Sub-Dwarfs” (in preparation) (1977).Google Scholar
Eggen, O. J., Astrophys. J. Suppl. 19, 31 (No. 168) (1969).Google Scholar
Eggen, O. J., Lynden-Bell, D., and Sandage, A. R., Astrophys. J. 136, 748 (1962).CrossRefGoogle Scholar
Giclas, H., Burnham, R. Jr., Thomas, N. G., Lowell Proper Motion Survey: Lowell Observatory, Flagstaff, Arizona (1971).Google Scholar
Graham, J. A., and Slettebak, A., Astron. J. 78, 295 (1973).Google Scholar
Greenstein, J. C., Astrophys. J., 207 L119 (1976).Google Scholar
Greenstein, J. C., IAU Symp. no. 42 Dwarfs, White, ed. Luyten, W. J. Dordrecht: Reidel Publishing Co. (1971).Google Scholar
Luyten, W., Bruce Proper Motion Survey, Minneapolis, University of Minneapolic Press (1941).Google Scholar
Sandage, A. R., and Eggen, O. J., Mon. Not. R. Astron. S. 119, 278 (1959).Google Scholar
Sandage, A. R., and Kowal, C., unpublished (1963).Google Scholar
Slettebak, A., and Brundage, R. K., Astron. J. 76, 338 (1971).Google Scholar
Unsold, A., Science, 163, 1015 (1969).CrossRefGoogle Scholar
Wickramasinghe, D. T., Bessell, M. S., and Cottrell, P. L., “Subdwarfs or Cool DA White Dwarfs” Astrophys J. (submitted) (1977a).Google Scholar
Wickramasinghe, D. T., Bessell, M. S., and Cottrell, P. L., “CoolDA White Dwarfs” Astrophys. J. (submitted) (1977b).Google Scholar