Big bang nucleosynthesis in the precision era

被引:0
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作者
Burles, S [1 ]
机构
[1] Fermilab Natl Accelerator Lab, Expt Astrophys Grp, Batavia, IL 60510 USA
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P1 [天文学];
学科分类号
0704 ;
摘要
Recent measurements of the primeval deuterium abundance and improved nuclear input to big-bang nucleosynthesis (BBN) precisely peg the baryon density, Omega (B)h(2) = 0.0189 +/- 0.0019 (95% cl). The uncertainty is due to that in the deuterium abundance and input nuclear data, in the ratio of about 2 to 1. The tight constraint sets the stage for a direct comparison with current and planned measurements of the cosmic microwave background anisotropies, and with it, a cosmological test at the level of 5%.
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页码:195 / 205
页数:11
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