869 citations · 3.5k across the 55 of their papers we have counts for
14 papers · 1 filter
Revisiting Ryskin's Model of Cosmic Acceleration
Zhiqi Huang, Han Gao, Haoting Xu
Cosmic backreaction as an additional source of the expansion of the universe has been a debate topic since the discovery of cosmic acceleration. The major concern is whether the se…
Forecasting Cosmological Bias due to Local Gravitational Redshift
Haoting Xu, Zhiqi Huang, Na Zhang +1
When photons from distant galaxies and stars pass through our neighboring environment, the wavelengths of the photons would be shifted by our local gravitational potential. This lo…
Flatness without CMB - the Entanglement of Spatial Curvature and Dark Energy Equation of State
Haoting Xu, Zhiqi Huang, Zhenjie Liu +1
The cosmic spatial curvature parameter is constrained, primarily by cosmic microwave background (CMB) data, to be very small. Observations of the cosmic distance ladder and t…
Fully Coupled Simulation of Cosmic Reionization. III. Stochastic Early Reionization by the Smallest Galaxies
Michael L Norman, Pengfei Chen, John H Wise +1
Previously we identified a new class of early galaxy that we estimate contributes up to 30\% of the ionizing photons responsible for reionization. These are low mass halos in the r…
Cluster magnetic fields through the study of polarized radio halos in the SKA era
F. Govoni, M. Murgia, H. Xu +17
Galaxy clusters are unique laboratories to investigate turbulent fluid motions and large scale magnetic fields. Synchrotron radio halos at the center of merging galaxy clusters pro…
Spatially Extended 21 cm Signal from Strongly Clustered UV and X-Ray Sources in the Early Universe
Kyungjin Ahn, Hao Xu, Michael L. Norman +2
We present our prediction for the local 21 cm differential brightness temperature () from a set of strongly clustered sources of Population III (Pop III) and II (Pop II) ob…