8 papers
Onsite Calibration of the Shear-Shear Correlation
Cong Liu, Jun Zhang, Zhenjie Liu
Calibration of the cosmic shear bias is crucial for justifying the cosmological results. However, it is still unclear to what extent calibrations based on simulated galaxy images,…
Calibrating Self-Weighted Shear Estimation via Field Distortion
Zhenjie Liu, Jiarui Sun, Jun Zhang +1
Accurate cosmic shear measurement is the key to fully realize the scientific potential of large scale galaxy surveys. The Fourier\_Quad shear measurement method has been significan…
Joint analysis of small-scale galaxy clustering and galaxy--galaxy lensing from BOSS galaxies
Wenhao Gao, Zhenjie Liu, Zhongxu Zhai +8
We present a joint analysis of galaxy clustering and galaxy--galaxy lensing measurements from BOSS galaxies using a simulation-based emulation method combined with a halo occupatio…
Luminosity-Dependent Assembly Bias of Central Galaxies from Weak Lensing and Clustering
Zhenjie Liu, Hironao Miyatake, Joop Schaye +3
Assembly bias, which is the variation in halo clustering at fixed mass driven by formation history, has long been predicted by numerical simulations but remains difficult to confir…
Dependence of halo properties on central-satellite magnitude gaps through weak lensing measurements
Mingtao Yang, Jiaxin Han, Wenting Wang +9
The magnitude gap between the central and satellite galaxies encodes information about the mass accretion history of a dark matter halo, and serves as a useful observational probe…
The Dependence of Dark Matter Halo Properties on the Morphology of Their Central Galaxies from Weak Lensing
Zhenjie Liu, Kun Xu, Jun Zhang +2
Xu \& Jing reported a monotonic relationship between host halo mass and the morphology of massive central galaxies, characterized by the Sérsic index , at fixed stellar m…