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Transport Processes in the Primordial Fireball

Naturevolume 214pages4041 (1967) | Download Citation



IT has not so far been possible to understand how galaxies could have developed out of unstably amplified statistical fluctuations in an expanding universe which was initially homogeneous and isotropic1. The view that the universe was once highly irregular2 has therefore been taken up again (ref. 3 and personal communications from R. W. Michie and W. C. Saslaw). Here one would like, not only to explain how certain finite initial perturbations develop into galaxies, but also to present a satisfying view of the full spectrum of initial irregularities and their subsequent development. Some peripheral scenes from this view are exposed in the present communication, and I hope these will serve as an introduction to the unresolved central aspects of the problem.

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  1. 1

    See Hawking, S. W., Ap. J., 145, 544 (1966), and references therein to Lifshitz, Bonner, Irvine and Khalatnikov. Also Sachs, R. K., and Wolfe, A. M., Ap. J., 147, 73 (1967).

  2. 2

    von Weizsäcker, C., Ap. J., 14, 165 (1951). Gamov, G., Dansk. Mat. Fys. Medd., 27, No. 10 (1953).

  3. 3

    Peebles, P. J. E., Ap. J., 142, 1317 (1965). Sciama, D. W., and Rees, M., Nature, 213, 374 (1967).

  4. 4

    See for example, Lindquist, R. W., Ann. Phys., 37, 487 (1966), and earlier work cited there.

  5. 5

    Peebles, P. J. E., Ap. J., 146, 542 (1966); Wagoner, R. V., Fowler, W. A., and Hoyle, F., Ap. J. (in the press); and earlier work.

  6. 6

    Bahcall, J. N., Phys. Rev., 136, B1164 (1964), note his ref. 27.

  7. 7

    Rindler, W., Mon. Not. Roy. Astro. Soc., 116, 662 (1956).

  8. 8

    Landau, L. D., and Lifshitz, E. M., Fluid Mechanics, §78 (Pergamon Press, London, 1959). I have used the notation of this section.

  9. 9

    Hawking, S. W., Ap. J., 145, 544 (1966).

  10. 10

    Hawking, S. W., Proc. Roy. Soc., A, 294, A, 295, 490 (1966). Penrose, R., Phys. Rev. Lett., 14, 57 (1965).

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  1. Department of Applied Mathematics and Theoretical Physics, University of Cambridge

  2. Department of Physics and Astronomy, University of Maryland, College Park, Maryland



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