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arXiv · 1808.01490

Median Statistics Analysis of Deuterium Abundance Measurements and Spatial Curvature Constraints

Jarred Penton·Jacob Peyton·Aasim Zahoor·Bharat Ratra
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Abstract

Zavarygin et al. (2018) compiled a list of 15 deuterium abundance measurements, discarded two because the remaining 13 measurements are then consistent with gaussianity, and found that the weighted mean baryon density (Omega_b h^2) determined from the 13 measurements is mildly discrepant (1.6sigma) with that determined from the Planck 2015 cosmic microwave background anisotropy data in a flat cosmogony. We find that a median statistic central estimate of Omega_b h^2 from all 15 deuterium abundance measurements is a more accurate estimate, is very consistent with Omega_b h^2 estimated from Planck 2015 data in a flat cosmogony, but is about 2sigma lower than that found in a closed cosmogonical model from the Planck 2015 data.

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Jarred Penton, Jacob Peyton, Aasim Zahoor, Bharat Ratra. 2018-08-04. Median Statistics Analysis of Deuterium Abundance Measurements and Spatial Curvature Constraints. https://doi.org/10.1088/1538-3873%2Faadf75

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