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The early universe

JUN 01, 1968
What was the universe like when it was very young? From a high‐energy physicist’s dream world it has evolved through many eras to its present state of comparative darkness and emptiness.
Edward R. Harrison

IN RECENT YEARS the active frontiers of cosmology have widened and certain aspects of the subject are attracting more attention from physicists. Growing emphasis on physics has been stimulated by discovery of the universal black‐body radiation and by growing realization that the composition of the universe was once extremely complex.

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References

  1. 1. W. Rindler, PHYSICS TODAY 20, no. 11, 23 (1967).https://doi.org/PHTOAD

  2. 2. G. Lemaître, Nature 127, 706 (1931).https://doi.org/NATUAS

  3. 3. G. Lemaître, Revue des Questions Scientifiques, November 1931, quoted in ref, 6.

  4. 4. G. Lemaître, The Primeval Atom, Van Nostrand, New York (1950).

  5. 5. G. Lemaître, “The Primaeval Atom Hypothesis,” p. 1 in La Structure et l’Evolution de l’Universe, Institut International de Physique Solvay, Brussels, Belgium (1958).

  6. 6. C. F. von Weizsäcker, Z. Physik 39, 633 (1938).https://doi.org/ZEPYAA

  7. 7. M. G. Mayer, E. Teller, Phys. Rev. 76, 1226 (1949).https://doi.org/PHRVAO

  8. 8. R. E. Peierls, K. S. Singwi, D. Wroe, Phys. Rev. 87, 46 (1952).https://doi.org/PHRVAO

  9. 9. G. Gamow, Rev. Mod. Phys. 21, 367 (1949).https://doi.org/RMPHAT

  10. 10. G. Gamow, Creation of the Universe, Viking Press, New York (1952).

  11. 11. G. Gamow in Vistas in Astronomy (A. Beer, ed.) Pergamon, London (1956) vol. 2, p. 1726.

  12. 12. R. A. Alpher, Phys. Rev. 74, 1577 (1948).https://doi.org/PHRVAO

  13. 13. P. J. E. Peebles, Lecture notes on cosmology, to be published by the University of Toronto Press.

  14. 14. G. Gamow, Phys. Rev. 74, 505 (1948); https://doi.org/PHRVAO
    G. Gamow, Nature 162, 680 (1948).https://doi.org/NATUAS

  15. 15. R. A. Alpher, H. A. Bethe, G. Gamow, Phys. Rev. 73, 803 (1948).https://doi.org/PHRVAO

  16. 16. R. A. Alpher, Phys. Rev. 74, 1577 (1948).https://doi.org/PHRVAO

  17. 17. R. A. Alpher, R. Herman, Phys. Rev. 74, 1737 (1948); https://doi.org/PHRVAO
    R. A. Alpher, R. Herman, Nature 162, 774 (1948); https://doi.org/NATUAS
    R. A. Alpher, R. Herman, Phys. Rev. 75, 1089 (1949).https://doi.org/PHRVAO

  18. 18. R. A. Alpher, R. Herman, Rev. Mod. Phys. 22, 153 (1950).https://doi.org/RMPHAT

  19. 19. R. A. Alpher, R. Herman, Phys. Rev. 84, 60 (1951).https://doi.org/PHRVAO

  20. 20. R. A. Alpher, R. Herman, G. Gamow, Phys. Rev. 74, 1198 (1948); https://doi.org/PHRVAO
    R. A. Alpher, R. Herman, G. Gamow, 75, 701 (1949); https://doi.org/PHRVAO , Phys. Rev.
    R. A. Alpher, R. Herman, G. Gamow, 75, 332A (1949).https://doi.org/PHRVAO , Phys. Rev.

  21. 21. R. A. Alpher, G. Gamow, R. Herman, Proc. Nat. Acad. Sci. 58, 2179 (1967).https://doi.org/PNASA6

  22. 22. G. Lemaître, Annales de la Société Scientifique de Bruxelles 47A, 49 (1927);
    G. Lemaître, Bulletin of the Astronomical Institutes of the Netherlands 5, no. 200 (1930); https://doi.org/BAINAO
    G. Lemaître, Monthly Notices of the Royal Astronomical Society 95, 483 (1931).https://doi.org/MNRAA4

  23. 23. A. D. Chernin, Soviet Astron.‐AJ 9, 871 (1966);
    C. B. G. McIntosh, Nature 215, 36 (1967); https://doi.org/NATUAS
    K. C. Jacobs, Nature 215, 1156 (1967); https://doi.org/NATUAS
    J. M. Cohen, Nature 216, 249 (1967).https://doi.org/NATUAS

  24. 24. W. de Sitter, Bulletin of the Astronomical Institutes of the Netherlands 5, no. 193 (1930); https://doi.org/BAINAO
    R. C. Tolman, Relativity, Thermodynamics and Cosmology, Clarendon Press, Oxford (1934), pp. 404–411;
    R. A. Alpher, R. C. Herman, Phys. Rev. 75, 1089 (1949).https://doi.org/PHRVAO

  25. 25. R. C. Tolman, Phys. Rev. 37, 1639 (1931); https://doi.org/PHRVAO
    Relativity, Thermodynamics and Cosmology, Clarendon Press, Oxford, (1934), chap. 9.

  26. 26. A. A. Penzias, R. W. Wilson, Astrophys. J. 142, 419 (1965).https://doi.org/ASJOAB

  27. 27. P. G. Roll, D. T. Wilkinson, Phys. Rev. Letters 16, 405 (1966); https://doi.org/PRLTAO
    G. B. Field, J. L. Hitchcock, Phys. Rev. Letters 16, 817 (1966); https://doi.org/PRLTAO
    P. Thaddeus, J. F. Clauser, Phys. Rev. Letters 16, 819 (1966); https://doi.org/PRLTAO
    T. F. Howell, J. R. Shakeshaft, Nature 210, 1318 (1966); https://doi.org/NATUAS
    W. J. Welch, S. Keachie, D. D. Thornton, G. Wrixon, Phys. Rev. Letters 18, 1068 (1967); https://doi.org/PRLTAO
    D. T. Wilkinson, Phys. Rev. Letters 19, 1195 (1967); https://doi.org/PRLTAO
    R. A. Stokes, R. B. Partridge, D. T. Wilkinson, Phys. Rev. Letters 19, 1199 (1967).https://doi.org/PRLTAO

  28. 28. R. H. Dicke, P. J. E. Peebles, P. G. Roll, D. T. Wilkinson, Astrophys. J. 142, 414 (1965).https://doi.org/ASJOAB

  29. 29. Ya. B. Zeldovich, Soviet Phys.‐JETP 16, 1102 (1962).https://doi.org/SPHJAR

  30. 30. H. P. Robertson, Rev. Mod. Phys. 5, 62 (1933).https://doi.org/RMPHAT

  31. 31. H. Bondi, Cosmology, Cambridge University Press, London (1961).

  32. 32. Ya. B. Zeldovich in Advances in Astronomy and Astrophysics, Academic Press, New York (1965), vol. 3, p. 241.

  33. 33. I. D. Novikov, Ya. B. Zeldovich in Annual Review of Astronomy and Astrophysics, Palo Alto, Calif. 5, 627 (1967).https://doi.org/ARAAAJ

  34. 34. J. D. North, Measure of the Universe, Clarendon Press, Oxford (1965).

  35. 35. E. R. Harrison, Nature 204, 271 (1964); https://doi.org/NATUAS
    E. R. Harrison, Monthly Notices of the Royal Astronomical Society 131, 1 (1965); https://doi.org/MNRAA4
    E. R. Harrison, Ann. Phys. (N.Y.) 35, 437 (1965).https://doi.org/APNYA6

  36. 36. E. Hubble, R. C. Tolman, Astrophys. J. 82, 302 (1935).https://doi.org/ASJOAB

  37. 37. Ya. B. Zeldovich, Soviet Phys.‐Usp. 9, 602 (1967).https://doi.org/SOPUAP

  38. 38. R. Weyman, Astrophys. J. 145, 560 (1966).https://doi.org/ASJOAB

  39. 39. P. J. E. Peebles (to be published).

  40. 40. E. R. Harrison, Phys. Rev. 167, 1170 (1968).https://doi.org/PHRVAO

  41. 41. H. Y. Chin, Phys. Rev. Letters 17, 712 (1966).https://doi.org/PRLTAO

  42. 42. J. A. Wheeler, Ann. Phys. (N.Y.) 2, 604 (1957).https://doi.org/APNYA6

  43. 43. E. R. Harrison, Nature 215, 151 (1967).https://doi.org/NATUAS

  44. 44. R. A. Alpher, J. W. Follin, R. C. Herman, Phys. Rev. 92, 1347 (1953).https://doi.org/PHRVAO

  45. 45. J. N. Bahcall, Phys. Rev. 136, B1165 (1964).https://doi.org/PHRVAO

  46. 46. R. A. Alpher, R. C. Herman, Rev. Mod. Phys. 22, 153 (1950); https://doi.org/RMPHAT
    Ya. N. Smirnov, Soviet Astron.‐AJ 8, 864 (1965);
    P. J. E. Peebles, Phys. Rev. Letters 16, 410 (1966); https://doi.org/PRLTAO
    P. J. E. Peebles, Astrophys. J. 146, 542 (1966); https://doi.org/ASJOAB
    R. V. Wagoner, W. A. Fowler, F. Hoyle, Astrophys. J. 148, 3 (1967); https://doi.org/ASJOAB
    R. V. Wagoner, Science 155, 1369 (1967).https://doi.org/SCIEAS

  47. 47. S. W. Hawking, R. J. Taylor, Nature 209, 1278 (1966); https://doi.org/NATUAS
    R. K. Sachs, A. M. Wolfe, Astrophys. J. 147, 73 (1967); https://doi.org/ASJOAB
    K. S. Thorne, Astrophys. J. 148, 51 (1967).https://doi.org/ASJOAB

  48. 48. R. H. Dicke (to be published).

  49. 49. R. B. Partridge, D. T. Wilkinson, Phys. Rev. Letters 18, 557 (1967).https://doi.org/PRLTAO

  50. 50. H. Reeves in Steller Structure, (L. H. Aller, D. B. McLaughlin, eds.) University of Chicago Press, Chicago (1965), p. 150.

  51. 51. A. S. Eddington, Fundamental Theory, Cambridge University Press, Cambridge (1953), pp. 9, 10.

  52. 52. D. Layzer in Annual Reviews’ of Astronomy and Astrophysics? 2, 341 (1964);
    Ya. B. Zeldovich in Advances in Astronomy and Astrophysics 3, 242 (1965); https://doi.org/AAYAAK
    E. R. Harrison, Rev. Mod. Phys. 39, 862 (1967).https://doi.org/RMPHAT

  53. 53. E. R. Harrison, Memoires Société Royale des Sciences de Liège 15, 15 (1967).

  54. 54. J. H. Jeans, Astronomy and Cosmogony, Cambridge University Press, Cambridge (1929), p. 352.

  55. 55. E. Lifshitz, J. Phys. (USSR) 10, 116 (1946).https://doi.org/JOPYA6

  56. 56. W. B. Bonnor, Z. Astrophys. 39, 143 (1956); https://doi.org/ZEASAJ
    W. B. Bonnor, Monthly Notices of the Royal Astronomical Society 117, 104 (1957).https://doi.org/MNRAA4

  57. 57. S. W. Hawking, Astrophys. J. 145, 544 (1966).https://doi.org/ASJOAB

  58. 58. R. K. Sachs, A. M. Wolfe, Astrophys. J. 147, 73 (1967).https://doi.org/ASJOAB

  59. 59. P. J. E. Peebles, Astrophys. J. 42, 1317 (1965); https://doi.org/ASJOAB
    P. J. E. Peebles, 147, 859 (1967).https://doi.org/ASJOAB , Astrophys. J.

  60. 60. E. R. Harrison, Phys. Rev. Letters 18, 1011 (1967).https://doi.org/PRLTAO

  61. 61. R. A. Alpher, R. C. Herman, Science 128, 904 (1958).https://doi.org/SCIEAS

  62. 62. E. R. Harrison (to be published).

  63. 63. A. Schuster, Nature 58, 367, 618 (1898).https://doi.org/NATUAS

  64. 64. G. R. Burbidge, F. Hoyle, Nuovo Cimento 4, 558 (1956); https://doi.org/NUCIAD
    G. R. Burbidge, Astrophys. J. 124, 416 (1956); https://doi.org/ASJOAB
    M. Goldhaber, Science 124, 218 (1956); https://doi.org/SCIEAS
    H. Alfvén, O. Klein, Arkiv Fysik 23, 187 (1962); https://doi.org/AFYSA7
    H. Alfvén, Rev. Mod. Phys. 37, 652 (1965); https://doi.org/RMPHAT
    O. Klein, Nature 211, 1337 (1966).https://doi.org/NATUAS

  65. 65. N. A. Vlasov, Soviet Astron.‐AJ 8, 715 (1965);
    G. G. Fazio in Annual physics, Palo Alto, Calif., vol 5, p. 481 (1967).

  66. 66. Ref. 5, Quoted in ref. 10, p. 53.

More about the Authors

Edward R. Harrison. Four College, University of Massachusetts, Amherst.

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Volume 21, Number 6

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