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QSO 0130-4021: A third QSO showing a low Deuterium to Hydrogen Abundance Ratio
David Kirkman, David Tytler, Scott Burles +2
We have discovered a third quasar absorption system which is consistent with a low deuterium to hydrogen abundance ratio, D/H = 3.4 times 10^-5. The z ~ 2.8 partial Lyman limit sys…
Big-Bang Nucleosynthesis: Linking Inner Space and Outer Space
Scott Burles, Kenneth M. Nollett, Michael S. Turner
We summarize the history, theory, observational status, and implications of big-bang nucleosynthesis.
Sharpening the predictions of big-bang nucleosynthesis
Scott Burles, Kenneth M. Nollett, James N. Truran +1
Motivated by the recent measurement of the primeval abundance of deuterium, we re-examine the nuclear inputs to big-bang nucleosynthesis (BBN). Using Monte-Carlo realization of the…
Cosmological Magnetic Fields Limits in an Inhomogeneous Universe
Pasquale Blasi, Scott Burles, Angela V. Olinto
We study the effect of inhomogeneities in the matter distribution of the universe on the Faraday rotation of light from distant QSOs and derive new limits on the cosmological magne…