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The anthropic significance of the existence of an excited state of 12C

Nature volume 340, pages 281284 (27 July 1989) | Download Citation

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Abstract

Were it not for the presence of an excited state of 12C at 7.6 MeV, at the endpoint of the triple-alpha reaction, it would be difficult for stars to manufacture carbon and heavier elements. Calculations using modified triple-alpha rates test the sensitivity of stellar nucleosynthesis to the exact position of this excited state, and allow an empirical assessment of its importance in the anthropic principle in cosmology.

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References

  1. 1.

    & in The Antropic Cosmological Principle 250–255 (Clarendon Press, Oxford, 1986).

  2. 2.

    Astrophys. J. Suppl. 1, 121–146 (1954).

  3. 3.

    , , & Phys. Rev. 92, 649–650 (1953).

  4. 4.

    , , & Phys. Rev. 92, 1095 (1953).

  5. 5.

    in Confrontation of Cosmological Theories with Observation (ed. Longair, M.S.) 291–298 (Reidel, Dordrecht, 1974).

  6. 6.

    Phys. Rev. 107, 516–525 (1957).

  7. 7.

    & in Supernova 1987 A in the Large Magellanic Cloud (eds Kafatos, M. & Michalitsianos, A.) 313–322 (Cambridge University Press, 1988).

  8. 8.

    , & A. Rev. Astr. Astrophy. 5, 525–570 (1967).

  9. 9.

    Principles of Stellar Evolution and Nucleosynthesis 414 (McGraw-Hill, New York, 1968).

  10. 10.

    in Nucleosynthesis (eds Arnett, W. D. & Truran, J. W.) 15–27 (Chicago University Press, 1985).

  11. 11.

    & Astrophys. J. 220, 980–995 (1978).

  12. 12.

    in Physical Processes in Red Giants (eds Iben, I. Jr & Renzini, A.) 205–224 (Reidel, Dordrecht, 1981).

  13. 13.

    in Late Stages of Stellar Evolution (eds Kwok, S. & Pottasch, S. R.) 253–268 (Reidel, Dordrecht, 1987).

  14. 14.

    Astrophys. J. 196, 525–548 (1975).

  15. 15.

    & Astrophys. J. 237, 111–129 (1980).

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Affiliations

  1. Department of Physics, Technion, Israel Institute of Technology, 32000 Haifa, Israel

    • M. Livio
  2. Department of Astronomy, University of Illinois, Urbana-Champaign, Illinois 61801, USA

    • D. Hollowell
    • , A. Weiss
    •  & J. W. Truran
  3. Max-Planck-lnstitut für Astrophysik, D-8046 Garching, FRG

    • A. Weiss

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https://doi.org/10.1038/340281a0

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