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Prog. Theor. Phys. Vol. 16 No. 6 (1956) pp. 613-624

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Formation of Light Nuclei in the Expanding Universe

Chushiro Hayashi and Minoru Nishida

Department of Physics, Kyoto University, Kyoto

(Received September 4, 1956)

Abstract:

The building up of light nuclei up to Ne20 out of intial protons and neutrons in the early stage of the expanding universe is studied, taking account of the α-capture reactions. If we take the matter density ρm=106∼107 g/cm3 at T=1010 °K, we can obtain the relative abundance of hydrogen, helium and oxygen, consistent with present observation. The possibility of forming heavier nuclei is discussed.


URL : http://ptp.ipap.jp/link?PTP/16/613/
DOI : 10.1143/PTP.16.613

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References:

  1. See, for example, R. A. Alpher and R. C. Herman, Rev. Mod. Phys. 22 (1950), 153[APS].
  2. E. Fermi and A. Turkevich, see ref. (1).
  3. F. Hoyle, Mon. Not. R. Astron. Soc. 106 (1946), 343; Astrophys. J. Suppl. 1 (1954), 121.
  4. W. A. Fowler and J. L. Greenstein, Proc. Nat. Acad. Sci. 42 (1956), 173.
  5. M. Taketani, T. Hatanaka and S. Obi, Prog. Theor. Phys. 15 (1956), 89[IPAP].
  6. S. Hayakawa, C. Hayashi, M. Imoto and K. Kikuchi, Prog. Theor. Phys. 16 (1956), 507[IPAP].
  7. C. Hayashi, Prog. Theor. Phys. 5 (1950), 224[IPAP].
  8. R. A. Alpher, J. W. Follin, Jr. and R. C. Herman, Phys. Rev. 92 (1953), 1347[APS].
  9. H. E. Suess and H. C. Urey, Rev. Mod. Phys. 28 (1956) 53[APS].
  10. W. A. Fowler, G. R. Burbidge and E. M. Burbidge, Astrophys. J. 122 (1955), 271[CrossRef]; Astrophys. J. Suppl. 17 (1955), 167.
  11. V. L. Ginzburg, Dokl. Akad. Nauk U.S.S.R. 92 (1953), 727; Usp. Fiz. Nauk. 51 (1953), 343; Izv. Acad. Nauk. U.S.S.R. 20 (1955), 5.
  12. S. Hayakawa and Y. Terashima, private communication.

Citing Article(s) :

  1. Progress of Theoretical Physics Vol. 38 No. 5 (1967) pp. 1083-1094 :
    Formation of Li, Be, B in the Expanding Hot Universe
    Humitaka Satō

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