74 citations · 157 across the 18 of their papers we have counts for
5 papers · 1 filter
Constraints on Baryon Density from the Effective Optical Depth of High-Redshift Quasars
Wen-Fei Liu, Yuan-Bo Xie, Zhi-E Liu +4
We present constraints on the baryonic matter density parameter, , within the framework of the CDM model. Our analysis utilizes observational data on the effective optical…
Probing the time variation of fine structure constant using galaxy clusters and quintessence model
Zhi-E Liu, Wen-Fei Liu, Tong-Jie Zhang +2
We explore a possible time variation of the fine structure constant () using the Sunyaev-Zel'dovich effect measurements of galaxy clusters along with their X-r…
The constraint ability of Hubble parameter by gravitational wave standard sirens on cosmological parameters
Tong-Jie Zhang, Yang Liu, Zhi-E Liu +3
In this paper, we present the application of a new method measuring Hubble parameter by using the anisotropy of luminosity distance() of the gravitational wave(GW) st…
Direct reconstruction of dynamical dark energy from observational Hubble parameter data
Zhi-E Liu, Hao-Ran Yu, Tong-Jie Zhang +1
Reconstructing the evolution history of the dark energy equation of state parameter directly from observational data is highly valuable in cosmology, since it contains subst…
Reconstructing equation of state of dark energy with principal component analysis
Zhi-E Liu, Hao-Feng Qin, Jie Zhang +2
We represent a nonparametric method to reconstruct the equation of state for dark energy directly from observational Hubble parameter data. We use principal component analysis (PCA…