Cited by 44Cosmology and Gravitation TheoriesNuclear physics research studiesGalaxies: Formation, Evolution, Phenomena

Enhanced heavy-element formation in baryon-inhomogeneous big bang models

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Jedamzik, K., Fuller, G. M., Mathews, G. J., Kajino, T.·1994·The Astrophysical Journal

Abstract

We show that primordial nucleosynthesis in baryon inhomogeneous big-bang models can lead to significant heavy-element production while still satisfying all the light-element abundance constraints including the low lithium abundance observed in population II stars. The parameters which admit this solution arise naturally from the process of neutrino induced inflation of baryon inhomogeneities prior to the epoch of nucleosynthesis. These solutions entail a small fraction of baryons (\le 2\%) in very high density regions with local baryon-to-photon ratio $\eta^h\approx 10^{-4}$, while most baryons are at a baryon-to-photon ratio which optimizes the agreement with light-element abundances. The model would imply a unique signature of baryon inhomogeneities in the early universe, evidenced by the existence of primordial material containing heavy-element products of proton and alpha- burning reactions with an abundance of $[Z]\sim -6 to -4$.

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Crossref · 10.1086/173738

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  • Primordial gravitational waves are predicted to be generated during inflation and could be detected by observing the so-called B-mode polarisation of the CMB.

    “Primordial gravitational waves are predicted to be generated during inflation [110] and could be detected by observing the so-called B-mode (parity odd patterns) polarisation of the CMB.”

    From Phase Transitions in the Early and Present Universe (2006) · cites this paper as [110]

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Authors
Jedamzik, K., Fuller, G. M., Mathews, G. J., & Kajino, T.
Venue
The Astrophysical Journal
Published
1994-02
Volume
422
Pages
423
ISSN
  • 0004-637X (ISSN-L)
  • 1538-4357
OpenAlex
W1991510486
Cited by
44
References
0
Citations by year
2019: 1 · 2017: 2 · 2016: 1 · 2013: 3
FWCI
9.33
Type
journal article
Language
en
Open access
Locations
  • The Astrophysical Journal (publishedVersion)
  • arXiv (Cornell University) (submittedVersion)
  • CERN Document Server (European Organization for Nuclear Research) (submittedVersion)
  • eScholarship (California Digital Library) (submittedVersion)
  • arXiv (Cornell University)
Topics
  • Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Cosmology and Gravitation Theories
  • Physical Sciences › Physics and Astronomy › Nuclear and High Energy Physics › Nuclear physics research studies
  • Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Galaxies: Formation, Evolution, Phenomena
Keywords
big bang nucleosynthesis, heavy element production, lithium abundance, Population II stars, baryon-to-photon ratio, light element abundances, early universe

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