7 citations · 8 across the 5 of their papers we have counts for
8 papers
Tidal Evolution of Satellite Dwarf Galaxies. I. Tidal Tracks of Stellar Mass and Structure
Feihong He, Fangzhou Jiang
Satellite dwarf galaxies are reshaped by the tidal field of their host, a process that may account for part of the structural diversity of the observed dwarf population. We study h…
Lower central dark matter densities in nearby galaxies than predicted by simulations
Yu Lei, Ling Zhu, Meng Yang +9
Baryonic feedback in hydrodynamical simulations is typically invoked to alleviate the core--cusp problem in dwarf galaxies. Yet baryonic processes also induce adiabatic contraction…
A Dark-matter Origin of Little Red Dots: Early Seeding and Super-Bondi Accretion
Hua-Peng Gu, Fangzhou Jiang, Xian Chen +2
The "Little red dots" (LRDs) are a population of accreting supermassive black holes (SMBHs) in the early Universe which often exhibit undermassive or even undetectable stellar host…
Universal Dark-matter Density Profiles of Cosmic Filaments
Peng Xu, Fangzhou Jiang, Farhanul Hasan +6
We present a comprehensive analysis of the radial dark-matter (DM) density profiles of cosmic filaments in the hydrodynamical simulation TNG50. The cosmic web is extracted from hig…
The tidal evolution of satellite galaxies in cosmological simulations: insights from COLIBRE
Feihong He, Jiaxin Han, Joop Schaye +12
We investigate the co-evolution of the stellar and dark matter mass of satellite galaxies using the COLIBRE cosmological hydrodynamical simulations with subhaloes resolved by the h…
An Enhanced Isothermal Jeans Approach to Constraining Dark Matter Self-Interactions from Galactic Kinematics
Zixiang Jia, Fangzhou Jiang, Shubo Li +3
We present an improved semi-analytical model to predict density profiles of self-interacting dark matter (SIDM) halos and apply it to constrain the self-scattering cross section us…
Non-Equilibrium Relativistic Core Collapse of Self-Interacting Dark Matter Halos -- Limits On Seed Black Hole Mass
Hua-Peng Gu, Fangzhou Jiang, Xian Chen +1
Recent observations of supermassive black holes (SMBHs) at high redshifts pose challenges to standard seeding mechanisms. Among competing models, the collapse of self-interacting d…
The diverse physical origins of stars in the dynamically hot bulge: CALIFA vs. IllustrisTNG
Le Zhang, Ling Zhu, Annalisa Pillepich +3
We compare the internal stellar structures of central galaxies in the TNG50 and TNG100 simulations and field galaxies in the CALIFA survey. The luminosity fractions of the dynamica…