37 citations · 162 across the 13 of their papers we have counts for
13 papers
Super-Eddington accretion of black holes in early nuclear bursts gives birth to Little Red Dots
Yangyao Chen, Houjun Mo
In a recent paper, Chen et al. developed a framework for modeling the seeding and growth of supermassive black holes (BHs) in the context of CDM cosmogony. Here, we use a set of…
What is the True HI Gas Content in Massive Quiescent Galaxies in the Local Universe?
Xiao Li, Cheng Li, Cheng Cheng +3
While massive quiescent galaxies are known to be poor in atomic hydrogen (HI), their true HI content remains poorly constrained due to the limited sensitivity and morphological bia…
Testing a New Star Formation History Model from Principal Component Analysis to Facilitate Spectral Synthesis Modeling
Yanzhe Zhang, H. J. Mo, Katherine E. Whitaker +1
The spectrum of a galaxy is a complicated convolution of many properties of the galaxy, such as the star formation history (SFH), initial mass function, and metallicity. Inferring…
CSST large-scale structure analysis pipeline: I. constructing reference mock galaxy redshift surveys
Yizhou Gu, Xiaohu Yang, Jiaxin Han +29
In this paper, we set out to construct a set of reference mock galaxy redshift surveys (MGRSs) for the future Chinese Space-station Survey Telescope (CSST) observation, where subse…
JWST/MIRI reveals the true number density of massive galaxies in the early Universe
Tao Wang, Hanwen Sun, Luwenjia Zhou +13
Early JWST studies reporting an unexpected abundance of massive galaxies at -- challenge galaxy formation models in the CDM framework. Previous stellar mass ($M_\st…
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…
Dynamical hotness, star formation quenching and growth of supermassive black holes
Hui Hong, Huiyuan Wang, H. J. Mo +8
A stellar system is dynamically hot when its kinetic energy is dominated by random motion represented by the velocity dispersion . We use MaNGA data to obtain in…
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…
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…
Conditional HI mass functions and the HI-to-halo mass relation in the local Universe
Xiao Li, Cheng Li, H. J. Mo +2
We present a new HI mass estimator which relates the HI-to-stellar mass ratio to four galaxy properties: stellar surface mass density, color index , stellar mass and concentra…
ELUCID VII: Using Constrained Hydro Simulations to Explore the Gas Component of the Cosmic Web
Renjie Li, Huiyuan Wang, H. J. Mo +8
Using reconstructed initial conditions in the SDSS survey volume, we carry out constrained hydrodynamic simulations in three regions representing different types of the cosmic web:…
Groups and protocluster candidates in the CLAUDS and HSC-SSP joint deep surveys
Qingyang Li, Xiaohu Yang, Chengze Liu +16
Using the extended halo-based group finder developed by Yang et al. (2021), which is able to deal with galaxies via spectroscopic and photometric redshifts simultaneously, we const…
Properties of the ionized CGM and IGM: a comparison of galaxy formation models via the Sunyaev-Zel'dovich effect
S. H. Lim, David Barnes, Mark Vogelsberger +5
We present a comparison of the physical properties of the ionized gas in the circumgalactic (CGM) and intergalactic (IGM) media at between observations and four cosmologic…