A new approach to systematic uncertainties and self-consistency in helium abundance determinations

  title={A new approach to systematic uncertainties and self-consistency in helium abundance determinations},
  author={E. M. Aver and Keith A. Olive and Evan D. Skillman},
  journal={Journal of Cosmology and Astroparticle Physics},
Tests of big bang nucleosynthesis and early universe cosmology require precision measurements for helium abundance determinations. However, efforts to determine the primordial helium abundance via observations of metal poor H II regions have been limited by significant uncertainties (compared with the value inferred from BBN theory using the CMB determined value of the baryon density). This work builds upon previous work by providing an updated and extended program in evaluating these… Expand
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