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- W4386089634 abstract "We measure the accelerated cosmic expansion rate of the late-time Universe and derive constraints on cosmological parameters from the final baryon acoustic oscillation (BAO) uncorrelated measurements of different surveys after two decades of dedicated spectroscopic observation combined with the Pantheon sample of Type Ia supernovae, the Hubble diagram of gamma-ray bursts &amp; quasars data, the Cosmic Chronometers data, and the recent Hubble constant value measurement from the Hubble Space Telescope and the SH0ES Team as an additional prior. In Λ cold dark matter (ΛCDM) scenario, the model fit yields Ωm=0.313±0.034 and ΩΛ=0.672±0.025. Combining BAO with CC+Pantheon+QSR+GRB data sets we get H0=69.21±1.22 km s−1 Mpc−1, rd=133.46±2.49 Mpc. For the a flat wCDM model, we get w=−1.111±0.030. For a dynamical evolution of dark energy in a flat w0waCDM cosmology, we get wa=−0.292±0.167. We apply the Akaike information criteria probe to compare the three models, and see that all models are favored and cannot be discarded from the current data." @default.
- W4386089634 created "2023-08-24" @default.
- W4386089634 creator A5011672207 @default.
- W4386089634 date "2023-08-23" @default.
- W4386089634 modified "2023-09-27" @default.
- W4386089634 title "Testing Cosmic Acceleration from the Late-Time Universe" @default.
- W4386089634 doi "https://doi.org/10.20944/preprints202308.1594.v1" @default.
- W4386089634 hasPublicationYear "2023" @default.
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