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arXiv 1997-12-18 0 views

Closing in on the Primordial Abundance of Deuterium

Burles, Scott · Tytler, David

Original · EN

We present our measurements of the deuterium to hydrogen ratio (D/H) in QSO absorption systems, which give D/H = 3.40 ± 0.25 × 10⁻⁵ based on analysis of four independent systems. We discuss the properties of two systems which provide the strongest constraints on D/H. We outline the systematic effects involved in measurements of D/H and introduce a sophisticated method of analysis which properly accounts for these effects.

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