299 citations · 345 across the 9 of their papers we have counts for
9 papers
The dependence of Circumgalactic Medium properties on halo assembly histories in the IllustrisTNG simulations
Yiyuan Zhang, Houzun Chen, Xi Kang
While halo mass is the dominant factor shaping the embedded galaxies, the properties of the circumgalactic medium (CGM) also depend on halo assembly history. To investigate this, w…
Feedback-Free Star Formation in Clusters within a Galaxy Simulated at High Resolution in Cosmic Dawn
Hou-Zun Chen, Zhaozhou Li, Avishai Dekel +3
We perform a cosmological zoom-in simulation of a massive galaxy ( at ) using the GIZMO code. By employing resolution and a $3.4\…
The CosmoVerse White Paper: Addressing observational tensions in cosmology with systematics and fundamental physics
Eleonora Di Valentino, Jackson Levi Said, Adam Riess +533
The standard model of cosmology has provided a good phenomenological description of a wide range of observations both at astrophysical and cosmological scales for several decades.…
Weak Lensing Constraints on Dark Matter-Baryon Interactions with -Body Simulations and Machine Learning
Chi Zhang, Lei Zu, Hou-Zun Chen +2
We investigate the elastic scattering cross section between dark matter and protons using the DES Year 3 weak lensing data. This scattering induces a dark acoustic oscillation stru…
NIHAO-RiNG: A Comparison of Simulated Disc Galaxies from GASOLINE and GIZMO
Hou-Zun Chen, Xi Kang, Andrea V. Macciò +2
We utilize the public GIZMO code to simulate twelve disc galaxies from the NIHAO suite simulated with the GASOLINE code, then compare the corresponding galaxies in the two simulati…
Theoretical Analysis of Random Scattering Induced by Microlensing
Wenwen Zheng, Hou-Zun Chen, Xuechun Chen +1
Theoretical investigations into the deflection angle caused by microlenses offer a direct path to uncovering principles of the cosmological microlensing effect. This work specifica…
Exploring Mirror Twin Higgs Cosmology with Present and Future Weak Lensing Surveys
Lei Zu, Chi Zhang, Hou-Zun Chen +5
We explore the potential of precision cosmological data to study non-minimal dark sectors by updating the cosmological constraint on the mirror twin Higgs model (MTH). The MTH mode…
An Improved GPU-Based Ray-Shooting Code For Gravitational Microlensing
Wenwen Zheng, Xuechun Chen, Guoliang Li +1
We present an improved inverse ray-shooting code based on GPUs for generating microlensing magnification maps. In addition to introducing GPUs for acceleration, we put the efforts…
Cosmic Web-Halo Connection Between Twin Universes
Hou-Zun Chen, Xi Kang, Peng Wang +2
Both simulation and observational data have shown that the spin and shape of dark matter halos are correlated with their nearby large-scale environment. As structure formation on d…