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Primordial Nucleosynthesis in Inhomogeneous Universe

  • Katsuhiko Sato
Conference paper
Part of the Astrophysics and Space Science Library book series (ASSL, volume 169)

Abstract

From recent studies of nucleosynthesis in inhomogeneous universe, It has been pointed out that 1) Ω B = 1 model becomes consistent with light element observations, 2) heavy elements including r-process elements are abundantly synthesized, and 3) 9Be plays a role of the indicator of inhomogeneity since 9Be is also abundantly synthesized. These suggestions were, however, based on a simple two-zone model in which back diffusion of neutrons are neglected during the nucleosynthesis. In this short review, It is shown that 1)the upper limit of Ω B which is consistent with light element observations is almost the same as that of homogeneous case, 2) the ‘Be abundance in the simple two-zone model is overestimated at least two orders of magnitude in plausible parameter space and 3) the abundances of CNO elements are very small in the proper range of baryon/photon ratio consistent with the abundances of light elements.

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Copyright information

© Springer Science+Business Media Dordrecht 1991

Authors and Affiliations

  • Katsuhiko Sato
    • 1
  1. 1.Department of Physics, Faculty of ScienceThe University of TokyoBunkyo-ku, TokyoJapan

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