Astronomy and Astrophysics – Astrophysics
Scientific paper
Dec 1998
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998tx19.confe.156o&link_type=abstract
Abstracts of the 19th Texas Symposium on Relativistic Astrophysics and Cosmology, held in Paris, France, Dec. 14-18, 1998. Eds.:
Astronomy and Astrophysics
Astrophysics
Scientific paper
This talk reviews the current status of Big Bang Nucleosynthesis. Special attention will be given to the observational abundances of the light elements D, ^3He, ^4He, and ^7Li. Overall, it will be seen that there is braod agreement between theory and the observational data, which leads to the fixing of the single free parameter of the theory, namely the baryon-to-photon ratio, eta. Implications of BBN on our understanding of non-baryonic dark matter, galactic chemical evolution, and constraints on particle properties will also be discussed.
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