Hostname: page-component-586b7cd67f-rcrh6 Total loading time: 0 Render date: 2024-11-26T06:28:53.105Z Has data issue: false hasContentIssue false
  • English
  • Français

The Evolution of Galaxies: Evidence from Optical Observations

Published online by Cambridge University Press:  07 February 2017

Beatrice M. Tinsley
Beatrice M. Tinsley*
Affiliation:
Yale University Observatory

Extract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

The clearest evidence that galaxies evolve comes from the Milky Way: here we see stars with ages and lifetimes differing by 4 orders of magnitude, and with chemical compositions indicating a hundred-fold enrichment in metals between the times of formation of the halo and most disc stars. the general resolution of Olbers' Paradox also gives evidence for cosmological change: the sky is dark because galaxies turned on a finite time ago (Harrison, 1974). Here I discuss some of the further evidence for galactic evolution that is emerging from observations probing billions of years in lookback time.

Type
IV. Observational Evidence for Cosmological Evolution
Information
Symposium - International Astronomical Union , Volume 79: The Large Scale Structure of the Universe , 1978 , pp. 343 - 355
Copyright
Copyright © Reidel 1978 

References

Butcher, H. and Oemler, A.: 1977, preprint.Google Scholar
Davis, M. and Wilkinson, D.T.: 1974, Astrophys. J. 192, 251.CrossRefGoogle Scholar
Demarque, P. and McClure, R.D.: 1977, in Tinsley, B.M. and Larson, R.B. (eds.), ‘The Evolution of Galaxies and Stellar Populations,’ Yale University Observatory, New Haven, p. 199.Google Scholar
Dube, R.R., Wickes, W.C., and Wilkinson, D.T.: 1977, Astrophys. J. (Letters) 215, L51.CrossRefGoogle Scholar
Harrison, E.R.: 1974, Physics Today 27, No. 2, p. 30.CrossRefGoogle Scholar
Kaufman, M., and Thuan, T.X.: 1977, Astrophys. J. 215, 11.CrossRefGoogle Scholar
Kron, R.G.: 1977, in Tinsley, B.M. and Larson, R.B. (eds.), ‘The Evolution of Galaxies and Stellar Populations,’ Yale University Observatory, New Haven, p. 334.Google Scholar
Larson, R.B.: 1974, Monthly Notices Roy. Astron. Soc. 166, 585.CrossRefGoogle Scholar
Larson, R.B.: 1976, Monthly Notices Roy. Astron. Soc. 176, 31.Google Scholar
Larson, R.B. and Tinsley, B.M.: 1978, Astrophys. J., in press.Google Scholar
Meier, D.L.: 1976a, Astrophys. J. (Letters) 203, L103.CrossRefGoogle Scholar
Meier, D.L.: 1976b, Astrophys. J. 207, 343.CrossRefGoogle Scholar
Ostriker, J.P. and Hausman, M.A.: 1977, preprint.Google Scholar
Partridge, R.B.: 1974, Astrophys. J. 192, 241.CrossRefGoogle Scholar
Partridge, R.B. and Peebles, P.J.E.: 1967a, Astrophys. J. 147, 868.CrossRefGoogle Scholar
Partridge, R.B. and Peebles, P.J.E.: 1967b, Astrophys. J. 148, 377.CrossRefGoogle Scholar
Sandage, A.: 1973, Astrophys. J. 183, 711.CrossRefGoogle Scholar
Spinrad, H.: 1977, in Tinsley, B.M. and Larson, R.B. (eds.), ‘The Evolution of Galaxies and Stellar Populations,’ Yale University Observatory, New Haven, p. 301.Google Scholar
Tinsley, B.M.: 1976, Astrophys. J. (Letters) 210, L49.CrossRefGoogle Scholar
Tinsley, B.M.: 1977a, Astrophys. J. 211, 621 (erratum, ibid. 216, 349).Google Scholar
Tinsley, B.M.: 1977b, in Balkowski, C. and Westerlund, B.E. (eds.), ‘Décalages vers le Rouge et Expansion de l'Universe. L'Evolution des Galaxies et ses Implications Cosmologiques,’ CNRS, Paris, p. 223.Google Scholar
Tinsley, B.M.: 1977c, Physics Today 30, No. 6, p. 32.CrossRefGoogle Scholar