91 citations · 255 across the 13 of their papers we have counts for
8 papers · 1 filter
Modeling Quasar Proximity Zones in a Realistic Cosmological Environment with a Self-consistent Light Curve
Yihao Zhou, Huanqing Chen, Tiziana Di Matteo +3
We study quasar proximity zones in a simulation that includes a self-consistent quasar formation model and realistic IGM environments. The quasar host halo is $10^{13}\ M_{\mathrm{…
The Characteristic Shape of Damping Wings During Reionization
Huanqing Chen
Spectroscopic analysis of Ly damping wings of bright sources at is a promising way to measure the reionization history of the universe. However, the theoretical interpreta…
Reconstructing Large-scale Temperature Profiles around Quasars
Huanqing Chen, Rupert Croft, Nickolay Y. Gnedin
High-redshift quasars ionize HeII into HeIII around them, heating the IGM in the process and creating large regions with elevated temperature. In this work, we demonstrate a method…
Long Dark Gaps in the Ly Forest at : Evidence of Ultra Late Reionization from XQR-30 Spectra
Yongda Zhu, George D. Becker, Sarah E. I. Bosman +22
We present a new investigation of the intergalactic medium (IGM) near reionization using dark gaps in the Lyman- (Ly) forest. With its lower optical depth, Ly offers a pot…
Approximating Density Probability Distribution Functions Across Cosmologies
Huanqing Chen, Nickolay Y. Gnedin, Philip Mansfield
Using a suite of self-similar cosmological simulations, we measure the probability distribution functions (PDFs) of real-space density, redshift-space density, and their geometric…
Recovering Density Fields inside Quasar Proximity Zones at
Huanqing Chen, Nickolay Y. Gnedin
The matter density field at is very challenging to probe. One of the traditional probes of the low density IGM that works successfully at lower redshifts is the Lyman-alp…
The Distribution and Evolution of Quasar Proximity Zone Sizes
Huanqing Chen, Nickolay Y. Gnedin
In this paper, we study the sizes of quasar proximity zones with synthetic quasar absorption spectra obtained by post-processing a Cosmic Reionization On Computers (CROC) simulatio…
Gas sloshing in Abell 2204: Constraining the properties of the magnetized intracluster medium
Huanqing Chen, Christine Jones, Felipe Andrade-Santos +2
The rich galaxy cluster Abell 2204 exhibits edges in its X-ray surface brightness at and west and east of its center, respectively. The presence of these…