Chenxiao Zeng
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View article: Self-calibrating optical galaxy cluster selection bias using cluster, galaxy, and shear cross-correlations
Self-calibrating optical galaxy cluster selection bias using cluster, galaxy, and shear cross-correlations Open
The clustering signals of galaxy clusters are powerful tools for self-calibrating the mass–observable relation and are complementary to cluster abundance and lensing. In this work, we explore the possibility of combining three correlation …
View article: Lyman-α polarization from cosmological ionization fronts. Part I. Radiative transfer simulations
Lyman-α polarization from cosmological ionization fronts. Part I. Radiative transfer simulations Open
In this paper, we present the formalism of simulating Lyman- α emission and polarization around reionization ( z = 8) from a plane-parallel ionization front. We accomplish this by using a Monte Carlo method to simulate the production of a …
View article: Lyman-α polarization from cosmological ionization fronts: I. Radiative transfer simulations
Lyman-α polarization from cosmological ionization fronts: I. Radiative transfer simulations Open
In this paper, we present the formalism of simulating Lyman-$α$ emission and polarization around reionization ($z$ = 8) from a plane-parallel ionization front. We accomplish this by using a Monte Carlo method to simulate the production of …
View article: Self-calibrating optical galaxy cluster selection bias using cluster, galaxy, and shear cross-correlations
Self-calibrating optical galaxy cluster selection bias using cluster, galaxy, and shear cross-correlations Open
The clustering signals of galaxy clusters are known to be powerful tools for self-calibrating the mass-observable relation and are complementary to cluster abundance and lensing. In this work, we explore the possibility of combining three …
View article: Optical selection bias and projection effects in stacked galaxy cluster weak lensing
Optical selection bias and projection effects in stacked galaxy cluster weak lensing Open
Cosmological constraints from current and upcoming galaxy cluster surveys are limited by the accuracy of cluster mass calibration. In particular, optically identified galaxy clusters are prone to selection effects that can bias the weak le…
View article: Nonequilibrium Temperature Evolution of Ionization Fronts during the Epoch of Reionization
Nonequilibrium Temperature Evolution of Ionization Fronts during the Epoch of Reionization Open
The epoch of reionization (EoR) marks the end of the Cosmic Dawn and the beginning of large-scale structure formation in the universe. The impulsive ionization fronts (I-fronts) heat and ionize the gas within the reionization bubbles in th…
View article: Searching for oscillations in the primordial power spectrum with CMB and LSS data
Searching for oscillations in the primordial power spectrum with CMB and LSS data Open
Different inflationary models predict oscillatory features in the primordial power spectrum. These can leave an imprint on both the cosmic microwave background (CMB) and the large-scale structure (LSS) of our Universe, that can be searched…