Quasar X-ray and UV flux, baryon acoustic oscillation, and Hubble parameter measurement constraints on cosmological model parameters
arXiv:1909.01400 · doi:10.1093/mnras/staa101
Abstract
We use the Risaliti & Lusso (2015) compilation of 808 X-ray and UV flux measurements of quasars (QSOs) in the redshift range , alone and in conjuction with baryon acoustic oscillation (BAO) and Hubble parameter [] measurements, to constrain cosmological parameters in six cosmological models. The QSO data constraints are significantly weaker than, but consistent with, those from the + BAO data. A joint analysis of the QSO + + BAO data is consistent with the current standard model, spatially-flat CDM, but mildly favors closed spatial hypersurfaces and dynamical dark energy.
arXiv comment14 pages, 12 figures
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