170 citations · 3.5k across the 119 of their papers we have counts for
6 papers · 1 filter
CMB Temperature and Matter Power Spectrum in a Decay Vacuum Dark Energy Model
Lixin Xu, Yuting Wang, Hyerim Noh
In this paper, a decay vacuum model is revisited by detailed analysis of background evolution and perturbation equations. We show the imprints on CMB tempera…
Unified Dark Fluid with Constant Adiabatic Sound Speed and Cosmic Constraints
Lixin Xu, Yuting Wang, Hyerim Noh
As is known above 90% of the energy content in Universe is made of unknown dark component. Usually this dark fluid is separated into two parts: dark matter and dark energy. However…
Probing Ricci dark energy model with perturbations by using WMAP seven-year cosmic microwave background measurements, BAO and Type Ia supernovae
Yuting Wang, Lixin Xu, Yuanxing Gui
In this paper, we investigate the Ricci dark energy model with perturbations through the joint constraints of current cosmological data sets from dynamical and geometrical perspect…
Constraints on kinematic models from the latest observational data
Jianbo Lu, Lixin Xu, Molin Liu
Kinematical models are constrained by the latest observational data from geometry-distance measurements, which include 557 type Ia supernovae (SNIa) Union2 data and 15 observationa…
Combined constraints on modified Chaplygin gas model from cosmological observed data: Markov Chain Monte Carlo approach
Jianbo Lu, Lixin Xu, Yabo Wu +1
We use the Markov Chain Monte Carlo method to investigate a global constraints on the modified Chaplygin gas (MCG) model as the unification of dark matter and dark energy from the…
Does accelerating universe indicates Brans-Dicke theory
Jianbo Lu, Weiping Wang, Lixin Xu +1
The evolution of universe in Brans-Dicke (BD) theory is discussed in this paper. Considering a parameterized scenario for BD scalar field which plays the role of gravi…