142 citations · 781 across the 27 of their papers we have counts for
10 papers · 1 filter
The Environmental Dependence of Halo Intrinsic Alignments: Stronger Signals in Underdense Regions
Masaya Ichikawa, Jingjing Shi, Toshiki Kurita +3
The intrinsic alignment (IA) of galaxies and the dark matter haloes that host them is one of the leading astrophysical systematics for weak-lensing cosmology, yet how the IA signal…
The Intrinsic Alignment of Galaxy Clusters and Impact of Projection Effects
Jingjing Shi, Tomomi Sunayama, Toshiki Kurita +7
Galaxy clusters, being the most massive objects in the Universe, exhibit the strongest alignment with the large-scale structure. However, mis-identification of members due to proje…
Alignments Between Galaxies and the Cosmic Web at in the IllustrisTNG Simulations
Benjamin Zhang, Khee-Gan Lee, Alex Krolewski +3
Galaxy formation theories predict that galaxy shapes and angular momenta have non-random alignments with the cosmic web. This leads to so-called intrinsic alignment between pairs o…
An Optimal Estimator of Intrinsic Alignments for Star-forming Galaxies in IllustrisTNG Simulation
Jingjing Shi, Ken Osato, Toshiki Kurita +1
Emission line galaxies (ELGs), more generally star-forming galaxies, are valuable tracers of large-scale structure and therefore main targets of upcoming wide-area spectroscopic ga…
Evaluating the origins of the secondary bias based on the correlation of halo properties with the linear density field
Xiaoyu Wang, Huiyuan Wang, H. J. Mo +2
Using two sets of large -body simulations, we study the origin of the correlations of halo assembly time (), concentration () and spin ()…
Bimodal Formation Time Distribution for Infall Dark Matter Halos
Jingjing Shi, Huiyuan Wang, H. J. Mo +4
We use a 200 a side N-body simulation to study the mass accretion history (MAH) of dark matter halos to be accreted by larger halos, which we call infall halos. We defi…
Dependence of halo bias on mass and environment
Jingjing Shi, Ravi K. Sheth
The simplest analyses of halo bias assume that halo mass alone determines halo clustering. However, if the large scale environment is fixed, then halo clustering is almost entirely…
ELUCID - Exploring the Local Universe with reConstructed Initial Density field III: Constrained Simulation in the SDSS Volume
Huiyuan Wang, H. J. Mo, Xiaohu Yang +7
A method we developed recently for the reconstruction of the initial density field in the nearby Universe is applied to the Sloan Digital Sky Survey Data Release 7. A high-resoluti…
Alignments of dark matter halos with large-scale tidal fields: mass and redshift dependence
Sijie Chen, Huiyuan Wang, H. J. Mo +1
Large scale tidal field estimated directly from the distribution of dark matter halos is used to investigate how halo shapes and spin vectors are aligned with the cosmic web. The m…
Flow Patterns around Dark Matter Halos: the Link between Halo Dynamical Properties and Large Scale Tidal Field
Jingjing Shi, Huiyuan Wang, Houjun Mo
We study how halo intrinsic dynamical properties are linked to their formation processes for halos in two mass ranges, and $\ge 10^{13}h^{-1}…