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Production of new cosmological perturbations during the radiation-dominated era

Abstract

PURCELL (unpublished data) has noted the tendency for ‘dust’ particles strongly to cluster when they are coupled by viscous drag to a ‘gas’ whose velocity field is stochastic: where α(s−1) is the viscous coupling constant. The application of the Purcell clustering effect to cosmology which is considered here generates relatively large isothermal perturbations from relatively small adiabatic perturbations which will not otherwise survive damping during recombination.

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References

  1. 1

    Westervelt, P. J. acoust. Soc. Am. 22, 319 (1950).

    ADS  Article  Google Scholar 

  2. 2

    Ingard, U. & Galehouse, D. C. Am. J. Phys. 39, 811 (1971).

    ADS  Article  Google Scholar 

  3. 3

    Weinberg, S. Phys. Rev. Lett. (in the press).

  4. 4

    Silk, J. Nature 215, 1115 (1967).

    ADS  Article  Google Scholar 

  5. 5

    Peebles, P. J. E. Physical Cosmology, 220 (Princeton University Press, 1971).

    Google Scholar 

  6. 6

    Weinberg, S. Gravitation and Cosmology, 538 (Wiley, New York, 1972).

    Google Scholar 

  7. 7

    Weinberg, S. Astrophys. J. 168, 175 (1971).

    ADS  CAS  Article  Google Scholar 

  8. 8

    Zel'dovich, Ya. B. Astr. Astrophys. 5, 84 (1970).

    ADS  Google Scholar 

  9. 9

    Sunyaev, R. A. & Zel'dovich, Ya. B. Astr. Astrophys. 20, 189 (1972).

    ADS  Google Scholar 

  10. 10

    Doroshkevich, A. G. & Shandarin, S. F. Astr. Zh. 51, 41 (1974); Sov. Astr. 18, 24 (1974).

    ADS  Google Scholar 

  11. 11

    Doroshkevich, A. G. & Shandarin, S. F. Mon. Not. R. astr. Soc. 182, 27 (1978).

    ADS  Article  Google Scholar 

  12. 12

    Silk, J. IAU Symp. 63, 175 (1974).

    ADS  Google Scholar 

  13. 13

    Peebles, P. J. E. & Uy, J. T. Astrophys. J. 162, 816 (1970).

    ADS  Article  Google Scholar 

  14. 14

    Smoot, G. F., Gorenstein, M. V. & Muller, R. A. Phys. Rev. Lett. 39, 898 (1977).

    ADS  Article  Google Scholar 

  15. 15

    Peebles, P. J. E. Phys. Rev. D 1, 397 (1970).

    ADS  Google Scholar 

Download references

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PRESS, W., VISHNIAC, E. Production of new cosmological perturbations during the radiation-dominated era. Nature 279, 137–139 (1979). https://doi.org/10.1038/279137a0

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