38 citations · 210 across the 16 of their papers we have counts for
6 papers · 1 filter
An efficient and robust method to estimate halo concentration
Kai Wang, H. J. Mo, Yangyao Chen +1
We propose an efficient and robust method to estimate the halo concentration based on the first moment of the density distribution, which is $R_1\equiv \int_0^{r_{\rm vir}}4πr^3ρ(r…
Characterizing the assembly of dark matter halos with protohalo size histories: I. Redshift evolution, relation to descendant halos, and halo assembly bias
Kai Wang, H. J. Mo, Yangyao Chen +5
We propose a novel method to quantify the assembly histories of dark matter halos with the redshift evolution of the mass-weighted spatial variance of their progenitor halos, i.e.…
Late-formed halos prefer to host quiescent central galaxies. I. Observational results
Kai Wang, Yangyao Chen, Qingyang Li +1
The star formation and quenching of central galaxies are regulated by the assembly histories of their host halos. In this work, we use the central stellar mass to halo mass ratio a…
Massive Dark Matter Halos at High Redshift: Implications for Observations in the JWST Era
Yangyao Chen, H. J. Mo, Kai Wang
The presence of massive galaxies at high as recently observed by JWST appears to contradict the current CDM cosmology. Here we aim to alleviate this tension by incorporating…
Dissect two-halo galactic conformity effect for central galaxies: The dependence of star formation activities on the large-scale environment
Kai Wang, Yingjie Peng, Yangyao Chen
We investigate the two-halo galactic conformity effect for central galaxies, which is the spatial correlation of the star formation activities for central galaxies to several Mpcs,…
A Conditional Abundance Matching Method of Extending Simulated Halo Merger Trees to Resolve Low-Mass Progenitors and Sub-halos
Yangyao Chen, H. J. Mo, Cheng Li +3
We present an algorithm to extend subhalo merger trees in a low-resolution dark-matter-only simulation by conditionally matching them to those in a high-resolution simulation. The…