The Λ CDM model provides a good fit to most astronomical observations but harbors large
areas of phenomenology and ignorance. With the improvements in the precision and …

Abstract Several correlations among Gamma-Ray Bursts (GRBs) quantities, both in the
prompt and afterglow emissions, have been established during the last decades, thus …

The current discrepancy between the Hubble constant, H 0, derived from the local distance
ladder and from the cosmic microwave background is one of the most crucial issues in …

The cosmological principle is fundamental to the standard cosmological model. It assumes
that the Universe is homogeneous and isotropic on very large scales. As the basic …

We use measurements of 59/58 quasars (QSOs), over a redshift range 0.0041≤ z≤ 1.686,
to do a comparative study of the radius–luminosity (R− L) and X-ray− UV luminosity (LX …

We use a cosmology-independent method to calibrate gamma-ray burst (GRB) from the
observational Hubble data (OHD) with the cosmic chronometer method. By using Gaussian …

In this paper, we calibrate the Amati relation (the E p–E iso correlation) of gamma-ray bursts
(GRBs) in a cosmology-independent way. By using a Gaussian process to reconstruct the …

The redshift zt and the jerk parameter jt of the transition epoch are constrained by using two
model-independent approaches involving the direct expansion of the Hubble rate and the …

Abstract The Dark Energy Spectroscopic Instrument (DESI) collaboration recently released
the first-year data of baryon acoustic oscillations (BAOs). Based on the five different tracers …

We constrain the deceleration–acceleration epoch, namely the transition redshift z tr,
adopting model-independent techniques that utilize a calibrated E p–E iso correlation for …