28 citations · 73 across the 7 of their papers we have counts for
7 papers
Prediction of Individual Halo Concentrations Across Cosmic Time Using Neural Networks
Tianchi Zhang, Tianxiang Mao, Wenxiao Xu +1
The concentration of dark matter haloes is closely linked to their mass accretion history. We utilize the halo mass accretion histories from large cosmological N-body simulations a…
The halo concentration and mass relation traced by satellite galaxies
Qing Gu, Qi Guo, Tianchi Zhang +3
We study the relation between halo concentration and mass (c-M relation) using the Seventh and Eighth Data Release of the Sloan Digital Sky Survey (SDSS DR7 and DR8) galaxy catalog…
The spatial distribution of satellites in galaxy clusters
Qing Gu, Qi Guo, Tianchi Zhang +4
The planar distributions of satellite galaxies around the Milky Way and Andromeda have been extensively studied as potential challenges to the standard cosmological model. Using th…
The role of mergers and gas accretion in black hole growth and galaxy evolution
TianChi Zhang, Qi Guo, Yan Qu +1
We use a semi-analytic galaxy formation model to study the co-evolution of supermassive black holes (SMBHs) with their host galaxies. Although the coalescence of SMBHs is not impor…
Numerical convergence of pre-initial conditions on dark matter halo properties
Tianchi Zhang, Shihong Liao, Ming Li +1
Generating pre-initial conditions (or particle loads) is the very first step to set up a cosmological N-body simulation. In this work, we revisit the numerical convergence of pre-i…
Galaxy properties in the cosmic web of EAGLE simulation
Wenxiao Xu, Qi Guo, Haonan Zheng +8
We investigate the dependence of the galaxy properties on cosmic web environments using the most up-to-date hydrodynamic simulation: Evolution and Assembly of Galaxies and their En…
The optimal gravitational softening length for cosmological N-body simulations
Tianchi Zhang, Shihong Liao, Ming Li +1
Gravitational softening length is one of the key parameters to properly set up a cosmological -body simulation. In this paper, we perform a large suit of high-resolution -bod…