SIMBAD references

2024MNRAS.533..743W - Mon. Not. R. Astron. Soc., 533, 743-755 (2024/September-1)

Constraints from Fermi observations of long gamma-ray bursts on cosmological parameters.

WANG H. and LIANG N.

Abstract (from CDS):

In this paper, we compile a Fermi sample of the long gamma-ray bursts (GRB) observations from 15 years of GBM catalogue with identified redshift, in which the GOLD sample contains 123 long GRBs at $z\le 5.6$ and the FULL sample contains 151 long GRBs with redshifts at $z\le 8.2$. The Amati relation (the $E_{\rm p,i}$-$E_{\rm iso}$ correlation) is calibrated at $z\lt 1.4$ by a Gaussian Process from the latest observational Hubble data with the cosmic chronometers method so that GRBs at high-redshift $z\ge 1.4$ can be used to constrain cosmological models via the Markov chain Monte Carlo (MCMC) method. From the cosmology-independent GRBs with the GOLD sample at $z\ge 1.4$ and the Pantheon + sample of type Ia supernovae (SNe Ia) at $0.01\lt z\le 2.3$, we obtain $\Omega _{\rm m} = 0.354\pm 0.018, H_0 = 73.05\pm 0.2\, \rm {km\,s^{-1}\,Mpc^{-1}}$ for the flat Lambda cold dark matter ($\Lambda$CDM) model; $w_0 = -1.22^{+0.18}_{-0.15}$ for the flat wCDM model; and $w_{a} = -1.12^{+0.45}_{-0.83}$ for the flat Chevallier-Polarski-Linder model at the 1$\sigma$ confidence level. Our results with the GOLD and FULL sample are almost identical, which are more stringent than the previous results with GRBs.

Abstract Copyright: © 2024 The Author(s). Published by Oxford University Press on behalf of Royal Astronomical Society.

Journal keyword(s): cosmology: observations - gamma-rays: general

Status at CDS : Large table(s) will be appraised for possible ingestion in VizieR.

Simbad objects: 190

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