General Relativity and Gravitation

, Volume 13, Issue 3, pp 201–204 | Cite as

Towards a non-Friedmannian universe

  • Roberto Fabbri
  • Francesco Melchiorri
Research Articles

Abstract

We present the result of an experiment of the Florence group which has detected a quadrupole anisotropy in the cosmic background radiation. We show that this result implies that the universe either has large metric perturbations outside the particle horizon, or will become largely irregular in the future.

Keywords

Radiation Anisotropy Differential Geometry Cosmic Background Radiation Background Radiation 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
This is a preview of subscription content, log in to check access.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    Misner, C. W. (1968).Astrophys. J.,151, 431; Rees, M. J. (1972).Phys. Rev. Lett.,28, 1669.Google Scholar
  2. 2.
    Barrow, J. D., and Matzner, R. A. (1977).Mon. Not. R. Astron. Soc.,181, 719.Google Scholar
  3. 3.
    Penzias, A. A., and Wilson, R. W. (1965).Astrophys. J.,142, 419.Google Scholar
  4. 4.
    Partridge, R. B. (1980). Lecture Notes in Physics 109 (Springer, Berlin), p. 131.Google Scholar
  5. 5.
    Corey, B. E., and Wilkinson, D. T. (1976).Bull. Am. Astron. Soc.,8, 351; Cheng, E. S., Saulson, P. R., Wilkinson, D. T., and Corey, B. E. (1979).Astrophys. J.,232, L139.Google Scholar
  6. 6.
    Smoot, G. F., Gorenstein, M. V., and Muller, R. A. (1977).Phys. Rev. Lett.,39, 898.Google Scholar
  7. 7.
    de Vaucouleurs, G. (1975).Astrophys. J.,202, 319.Google Scholar
  8. 8.
    White, S., and Silk, J. (1979).Astrophys. J.,231, 1.Google Scholar
  9. 9.
    Fabbri, R., Guidi, I., Melchiorri, F., and Natale, V. (1980).Phys. Rev. Lett.,44, 1563.Google Scholar
  10. 10.
    Fabbri, R., Melchiorri, B., Melchiorri, F., Natale, V., Caderni, N., and Shivanandan, K. (1980).Phys. Rev. D,21, 2095.Google Scholar
  11. 11.
    Collins, C. B., and Hawking, S. W. (1973).Astrophys. J.,180, 317.Google Scholar
  12. 12.
    MacCallum, M. A. H. (1979). InGeneral Relativity, an Einstein Centenary Survey, eds. Hawking, S. W., and Israel, W. (Cambridge University Press, Cambridge).Google Scholar
  13. 13.
    Lifchitz, E. M., and Khalaktnikov, I. M. (1963).Adv. Phys.,12, 185.Google Scholar
  14. 14.
    Zeldovich, Ya. B. (1979). Lecture Notes in Physics109, (Springer, Berlin), p. 61.Google Scholar
  15. 15.
    Caderni, N., and Fabbri, R. (1979).Phys. Rev. D,20, 1251; and paper in preparation.Google Scholar
  16. 16.
    Barrow, J. D., and Tipler, F. J. (1978).Nature,276, 453.Google Scholar

Copyright information

© Plenum Publishing Corporation 1981

Authors and Affiliations

  • Roberto Fabbri
    • 1
  • Francesco Melchiorri
    • 2
  1. 1.Istituto di Fisica SuperioreUniversity of FlorenceFlorenceItaly
  2. 2.Istituto di Ricerca sulle Onde ElettromagneticheCNRFlorenceItaly

Personalised recommendations