The New Cosmos pp 319-331 | Cite as


  • Albrecht Unsöld
Part of the Heidelberg Science Library book series (HSL)


Five years after the measurement of the distances of remote galaxies, E. Hubble in 1929 achieved a second discovery of stupendous significance: The redshift of the lines in the spectra of distant galaxies increases in proportion to their distance We write the redshift
$$ z = \frac{{\Delta \lambda }}{{{\lambda _o}}} = \frac{{\lambda - {\lambda _o}}}{{{\lambda _o}}} $$
where λ0 is the laboratory wavelength and λ0 the measured wavelength.


Planetary System Hubble Constant Newtonian Theory Relativistic Cosmology Cosmic Space 


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  1. Bondi, H.: Cosmology. 2nd edn. Cambridge Univ. Press 1960.MATHGoogle Scholar
  2. Einstein, A.: Meaning of relativity. 6th edn. London: Methuen 1960.Google Scholar
  3. Gamow, G.: The creation of the universe. New York: New American Lib. 1957.Google Scholar
  4. Landau, L. D., and E. M. Lifschitz: Course of theoretical physics. II. The classical theory of fields. 2nd edn. Oxford: Pergamon Press 1962.Google Scholar
  5. Tolman, R. C.: Relativity, thermodynamics and cosmology. Oxford: Clarendon Press 1934.Google Scholar
  6. McVittie, G. C. Fact and theory in cosmology. London: Eyre Spottiswoode 1961. Google Scholar
  7. McVittie, G. C.: General relativity and cosmology. Illinois Univ. Press 1965.Google Scholar
  8. Witten, L (ed.): Gravitation. New York-London: Wiley 1962.Google Scholar

Copyright information

© Springer-Verlag New York Inc. 1969

Authors and Affiliations

  • Albrecht Unsöld
    • 1
  1. 1.Institute for Theoretical Physics and University ObservatoryKielGermany

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