55 citations · 145 across the 12 of their papers we have counts for
12 papers
Revisiting cosmic anisotropy with the Pantheon+ compilation
Yong Zhou, Dong Zhao
We investigate cosmic anisotropy within the updated Pantheon+ sample using both the dipole fitting (DF) and hemisphere comparison (HC) methods. With the DF method, the dipole signa…
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 Cosmological Principle with the CSST Photometric Survey
Yu-Tian Xu, Ji-Ping Dai, Dong Zhao +1
The cosmological principle states that our Universe is statistically homogeneous and isotropic at large scales. However, due to the relative motion of the Solar System, an addition…
The Universal Specific Merger Rate of Dark Matter Halos
Fuyu Dong, Donghai Zhao, Jiaxin Han +3
We employ a set of high resolution N-body simulations to study the merger rate of dark matter halos. We define a specific merger rate by normalizing the average number of mergers p…
Constraining the anisotropy of the Universe with the X-ray and UV fluxes of quasars
Dong Zhao, Jun-Qing Xia
We test the anisotropy in the Finslerian cosmological model with the X-ray and ultraviolet (UV) fluxes of 808 quasars. The dipole amplitude is and t…
Impacts of the simulated standard siren on estimating cosmological parameters
Dong Zhao, Zhi-Chao Zhao, Jun-Qing Xia
We propose a method based on the process of extracting gravitational wave (GW) parameters from GW signals to simulate the binary neutron-star (BNS) merging events. We simulate 1000…
Anisotropy of the Universe via the Pantheon supernovae sample revisited
Dong Zhao, Yong Zhou, Zhe Chang
We employ the hemisphere comparison (HC) method and the dipole fitting (DF) method to investigate the cosmic anisotropy in the recently released Pantheon sample of type Ia supernov…
Finsler space-time can explain both parity asymmetry and power deficit seen in CMB temperature anisotropies
Zhe Chang, Pranati K. Rath, Yu Sang +2
We propose a framework of Finsler space-time to explain the observed parity asymmetry and the power deficit in the low- () multipole range of co…
Correlation between centre offsets and gas velocity dispersion of galaxy clusters in cosmological simulations
Ming-Hua Li, Weishan Zhu, Dong Zhao
The gas is the dominant component of baryonic matter in most galaxy groups and clusters. The spatial offsets of gas centre from the halo centre could be an indicator of the dynamic…
Anisotropic power spectrum and the observed low-l power in PLANCK CMB data
Zhe Chang, Pranati K. Rath, Yu Sang +1
In this work, we study a direction dependent power spectrum in anisotropic Finsler space-time. We use this direction dependent power spectrum to address the low-l power observed in…
Inflation in de Sitter spacetime and CMB large scales anomaly
Dong Zhao, Ming-Hua Li, Ping Wang +1
The influence of cosmological constant type dark energy in the early universe is investigated. This is accommodated by a new dispersion relation in de Sitter spacetime. We perform…
Bulk flow of halos in ΛCDM simulation
Ming Li, Jun Pan, Liang Gao +10
Analysis of the Pangu N-body simulation validates that the bulk flow of halos follows a Maxwellian distribution which variance is consistent with the prediction of the linear theor…