200 citations · 1.1k across the 32 of their papers we have counts for
5 papers · 1 filter
Searching for the Evidence of Dynamical Dark Energy
Deng Wang, Wei Zhang, Xin-He Meng
In the statistical framework of model-independent Gaussian processes (GP), we search for the evidence of dynamical dark energy (DDE) using the "Joint Light-curve Analysis" (JLA) Ty…
Machine Learning Cosmic Expansion History
Deng Wang, Wei Zhang
We use the machine learning techniques, for the first time, to study the background evolution of the universe in light of 30 cosmic chronometers. From 7 machine learning algorithms…
A Re-examination of Galactic Conformity and a Comparison with Semi-analytic Models of Galaxy Formation
Guinevere Kauffmann, Cheng Li, Wei Zhang +1
The observed correlation between star-formation in central galaxies and in their neighbours (a phenomenon dubbed galactic conformity) is in need of a convincing physical explanatio…
The clustering of galaxies as a function of their photometrically-estimated atomic gas content
Cheng Li, Guinevere Kauffmann, Jian Fu +5
We introduce a new photometric estimator of the HI mass fraction (M_HI/M_*) in local galaxies, which is a linear combination of four parameters: stellar mass, stellar surface mass…
Autocorrelations of stellar light and mass at z~0 and ~1: From SDSS to DEEP2
Cheng Li, Simon D. M. White, Yanmei Chen +8
We present measurements of projected autocorrelation functions w_p(r_p) for the stellar mass of galaxies and for their light in the U, B and V bands, using data from the third data…