66 citations · 786 across the 42 of their papers we have counts for
4 papers · 1 filter
An accurate centroid algorithm for PSF reconstruction
Tianhuan Lu, Wentao Luo, Jun Zhang +8
In this work, we present a novel centroiding method based on Fourier space Phase Fitting(FPF) for Point Spread Function(PSF) reconstruction. We generate two sets of simulations to…
Galaxy-galaxy weak-lensing measurement from SDSS: II. host halo properties of galaxy groups
Wentao Luo, Xiaohu Yang, Tianhuan Lu +10
As the second paper of a series on studying galaxy-galaxy lensing signals using the Sloan Digital Sky Survey Data Release 7 (SDSS DR7), we present our measurement and modelling of…
New leaves of the tree: percolation analysis for cosmic web with discrete points
Jiajun Zhang, Dalong Cheng, Ming-Chung Chu
Percolation analysis has long been used to quantify the connectivity of the cosmic web. Most of the previous work is based on density fields on grids. By smoothing into fields, we…
The Importance of Quantum Pressure of Fuzzy Dark Matter on Lyman-Alpha Forest
Jiajun Zhang, Jui-Lin Kuo, Hantao Liu +3
With recent Lyman-alpha forest data from BOSS and XQ-100, some studies suggested that the lower mass limit on the fuzzy dark matter (FDM) particles is lifted up to $10^{-21}\,\math…