Inhomogeneous nucleosynthesis and the cosmic-microwave-background isotropy

Details Inhomogeneous nucleosynthesis and the cosmic-microwave-background isotropy Inhomogeneous nucleosynthesis and the cosmic-microwave-background isotropy

Jul 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989phrvd..40..271s&link_type=abstract

Physical Review D (Particles and Fields), Volume 40, Issue 2, 15 July 1989, pp.271-276

Physics

1

Scientific paper

It has been known for some time that the standard big-bang nucleosynthesis (described by Yang et al.) puts strong limits on the amount of baryonic matter in the Universe. The recently proposed inhomogeneous nucleosynthesis could potentially invalidate that bound. In view of this possibility, we review the predictions of the cosmic-microwave-background anisotropy, which is expected to be overproduced in most pure baryonic universes when one tries to explain the formation of galaxies. We show that these predictions are not likely to be modified by hiding the baryons in ``lumps'' left over from the QCD phase transition.

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