17 citations · 32 across the 10 of their papers we have counts for
11 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…
Precision Measurement of Large Shear Signals
Jiarui Sun, Jun Zhang, Li Cui +2
So far, estimators of galaxy shape distortions are only carefully studied perturbatively in the case of small shear signals, mainly for weak lensing science. However, in the neighb…
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…
Constraining with Lensing Statistics in Low and High Density Regions
Yiqi Huang, Fuyu Dong, Jun Zhang +2
Lensing studies are typically carried out around high density regions, such as groups and clusters, where the lensing signals are significant and indicative of rich density structu…
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 ma…
Ellipticities of Galaxy Cluster Halos from Halo-Shear-Shear Correlations
Zhenjie Liu, Jun Zhang, Cong Liu +1
We report the first detection of the halo ellipticities of galaxy clusters by applying the halo-shear-shear correlations (HSSC), without the necessity of major axis determination.…
Accurate Shear Recovery with Multi-Band Images of Hyper Suprime-Cam
Cong Liu, Jun Zhang, Hekun Li +2
The existing large scale weak lensing surveys typically reserve the best seeing conditions for a certain optical band to minimize shape measurement errors and maximize the number o…
Tele-Correlation: Calibrating Shear-Shear Correlation with Real Data
Zhi Shen, Jun Zhang, Cong Liu +4
Tele-correlation refers to the correlation of galaxy shapes with large angular separations (e.g., degrees). Since there are no astrophysical reasons causing such a correlati…
DESI Legacy Imaging Surveys Data Release 9: Cosmological Constraints from Galaxy Clustering and Weak Lensing using the Minimal Bias Model
Haojie Xu, Hekun Li, Jun Zhang +11
We present a tentative constraint on cosmological parameters and from a joint analysis of galaxy clustering and galaxy-galaxy lensing from DESI Legacy Imaging Surveys D…
Quasi-2D Weak Lensing Cosmological Constraints Using the PDF-SYM method
Zhenjie Liu, Jun Zhang, Hekun Li +2
Cosmic shear statistics, such as the two-point correlation function (2PCF), can be evaluated with the PDF-SYM method instead of the traditional weighted-sum approach. It makes use…