Testing the standardizability of, and deriving cosmological constraints from, a new Amaticorrelated gammaray burst data compilation
Abstract
By using gammaray burst (GRB) data to simultaneously constrain Amati correlation parameters and cosmological parameters in six spatiallyflat and nonflat dark energy cosmological models, we show that an updated 220 GRB version of the Jia et al. [Mon. Not. R. Astron. Soc. 516, 2575 (2022)] GRB data compilation are standardizable through the Amati correlation and so can be used for cosmological analyses. However, the resulting GRB data constraints on the current value of the nonrelativistic matter density parameter, $\Omega_{m0}$, are in $>2\sigma$ tension with those from a joint analysis of betterestablished Hubble parameter [$H(z)$] and baryon acoustic oscillation (BAO) data for most of the cosmological models we consider, indicating that these GRB data cannot be jointly used with betterestablished $H(z)$ + BAO data to constrain cosmological parameters.
 Publication:

arXiv eprints
 Pub Date:
 April 2024
 DOI:
 10.48550/arXiv.2404.08697
 arXiv:
 arXiv:2404.08697
 Bibcode:
 2024arXiv240408697C
 Keywords:

 Astrophysics  Cosmology and Nongalactic Astrophysics;
 General Relativity and Quantum Cosmology;
 High Energy Physics  Phenomenology;
 High Energy Physics  Theory
 EPrint:
 11 pages, 2 figures, submitted to Physical Review D