354 citations · 2.4k across the 53 of their papers we have counts for
7 papers · 1 filter
Testing cosmic opacity from SNe Ia and Hubble parameter through three cosmological-model-independent methods
Kai Liao, Zhengxiang Li, Jing Ming +1
We use the newly published 28 observational Hubble parameter data () and current largest SNe Ia samples (Union2.1) to test whether the universe is transparent. Three cosmolog…
A unification of RDE model and XCDM model
Kai Liao, Zong-Hong Zhu
In this Letter, we propose a new generalized Ricci dark energy (NGR) model to unify Ricci dark energy (RDE) and XCDM. Our model can distinguish between RDE and XCDM by introducing…
Energy conditions in gravity
Jun Wang, Kai Liao
In order to constrain gravity from theoretical aspects, its energy conditions are derived in this paper. These energy conditions given by us are quite general and can…
Testing the interaction model with cosmological data and gamma-ray bursts
Yu Pan, Shuo Cao, Yungui Gong +2
We use the new gamma-ray bursts (GRBs) data, combined with the baryon acoustic oscillation(BAO) observation from the spectroscopic Sloan Digital Sky Survey (SDSS) data release, the…
Observational constraints on new generalized Chaplygin gas model
Kai Liao, Yu Pan, Zong-Hong Zhu
We use the latest data to investigate observational constraints on the new generalized Chaplygin gas (NGCG) model. Using the Markov Chain Monte Carlo (MCMC) method, we constrain th…
Constraints on f(R) cosmologies from strong gravitational lensing systems
Kai Liao, Zong-Hong Zhu
f(R) gravity is thought to be an alternative to dark energy which can explain the acceleration of the universe. It has been tested by different observations including type Ia super…