Zobrazeno 1 - 10
of 79
pro vyhledávání: '"Chen, Yangyao"'
We explore the co-evolution of dark matter halos, their central galaxies, and central supermassive black holes (SMBHs) using the IllustrisTNG (TNG) simulation. We find that the evolutionary histories of individual galaxies in the $M_{\rm BH}$-$M_*$ p
Externí odkaz:
http://arxiv.org/abs/2409.06208
We develop a model of globular cluster (GC) formation within the cosmological hierarchy of structure formation. The model is rooted in the `two-phase' scenario of galaxy formation developed in Paper-I, where the fast accretion of dark matter halos at
Externí odkaz:
http://arxiv.org/abs/2405.18735
Autor:
Wang, Tao, Sun, Hanwen, Zhou, Luwenjia, Xu, Ke, Cheng, Cheng, Li, Zhaozhou, Chen, Yangyao, Mo, H. J., Dekel, Avishai, Zheng, Xianzhong, Cai, Zheng, Yang, Tiacheng, Dai, Y. -S., Elbaz, David, Huang, J. -S.
One of the main challenges in galaxy formation that has emerged recently is the early assembly of massive galaxies. The observed number density and the maximum stellar mass ($M_{\star}$) of massive galaxies in the early Universe appear to be higher t
Externí odkaz:
http://arxiv.org/abs/2403.02399
Autor:
Luo, Xiong, Wang, Huiyuan, Cui, Weiguang, Mo, Houjun, Li, RenJie, Jing, Yipeng, Katz, Neal, Davé, Romeel, Yang, Xiaohu, Chen, Yangyao, Li, Hao, Huang, Shuiyao
We conducted an investigation of the Coma cluster of galaxies by running a series of constrained hydrodynamic simulations with GIZMO-SIMBA and GADGET-3, based on initial conditions reconstructed from the SDSS survey volume in the ELUCID project. We c
Externí odkaz:
http://arxiv.org/abs/2401.14730
In Paper-I we developed a two-phase model to connect dynamically hot galaxies (such as ellipticals and bulges) with the formation of self-gravitating gas clouds (SGCs) associated with the fast assembly of dark matter halos. Here we explore the implic
Externí odkaz:
http://arxiv.org/abs/2311.11713
We develop a model for galaxy formation and the growth of supermassive black holes (SMBHs), based on the fact that cold dark matter (CDM) halos form their gravitational potential wells through a fast phase with rapid change in the potential, and that
Externí odkaz:
http://arxiv.org/abs/2311.05030
We propose an efficient and robust method to estimate the halo concentration based on the first moment of the density distribution, which is $R_1\equiv \int_0^{r_{\rm vir}}4\pi r^3\rho(r)dr/M_{\rm vir}/r_{\rm vir}$. We find that $R_1$ has a monotonic
Externí odkaz:
http://arxiv.org/abs/2310.00200
Autor:
Wang, Kai, Mo, H. J., Chen, Yangyao, Wang, Huiyuan, Yang, Xiaohu, Wang, Jiaqi, Peng, Yingjie, Cai, Zheng
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. the protohalo size history. We find that the protohalo size history fo
Externí odkaz:
http://arxiv.org/abs/2309.01039
Environmental dependence of the mass-metallicity relation in cosmological hydrodynamical simulations
We investigate the environmental dependence of the gas-phase metallicity for galaxies at $z=0$ to $z\gtrsim 2$ and the underlying physical mechanisms driving this dependence using state-of-the-art cosmological hydrodynamical simulations. We find that
Externí odkaz:
http://arxiv.org/abs/2305.08161
The presence of massive galaxies at high $z$ as recently observed by JWST appears to contradict the current $\Lambda$CDM cosmology. Here we aim to alleviate this tension by incorporating uncertainties from three sources in counting galaxies: cosmic v
Externí odkaz:
http://arxiv.org/abs/2304.13890