96 citations · 414 across the 18 of their papers we have counts for
5 papers · 1 filter
Effects of galaxy intrinsic alignment on weak lensing peak statistics
Tianyu Zhang, Xiangkun Liu, Chengliang Wei +4
The galaxy intrinsic alignment (IA) is a dominant source of systematics in weak lensing (WL) studies. In this paper, by employing large simulations with semi-analytical galaxy form…
Cosmic Web-Halo Connection Between Twin Universes
Hou-Zun Chen, Xi Kang, Peng Wang +2
Both simulation and observational data have shown that the spin and shape of dark matter halos are correlated with their nearby large-scale environment. As structure formation on d…
The parameter-free Finger-Of-God model and its application to 21cm intensity mapping
Jiajun Zhang, André A. Costa, Bin Wang +3
Using the galaxy catalog built from ELUCID N-body simulation and the semi-analytical galaxy formation model, we have built a mock HI intensity mapping map. We have implemented the…
Full-sky ray-tracing simulation of weak lensing using ELUCID simulations: exploring galaxy intrinsic alignment and cosmic shear correlations
Chengliang Wei, Guoliang Li, Xi Kang +15
The intrinsic alignment of galaxies is an important systematic effect in weak-lensing surveys, which can affect the derived cosmological parameters. One direct way to distinguish d…
Halo intrinsic alignment: dependence on mass, formation time and environment
Qianli Xia, Xi Kang, Peng Wang +5
In this paper we use high-resolution cosmological simulations to study halo intrinsic alignment and its dependence on mass, formation time and large-scale environment. In agreement…