52 citations · 230 across the 10 of their papers we have counts for
11 papers
Detecting the HI Power Spectrum in the Post-Reionization Universe with SKA-Low
Zhaoting Chen, Emma Chapman, Laura Wolz +1
We present a survey strategy to detect the neutral hydrogen (HI) power spectrum at using the SKA-Low radio telescope in presence of foregrounds and instrumental effects. We…
A direct detection of neutral hydrogen intensity mapping on Mpc scales at and
Sourabh Paul, Zhaoting Chen, Mario G. Santos +1
We report the detection of the cosmological power spectrum using the intensity mapping signal from 21-cm emission of neutral hydrogen (HI), derived from interferometric observation…
Towards Optimal Foreground Mitigation Strategies for Interferometric HI Intensity Mapping in the Low-Redshift Universe
Zhaoting Chen, Laura Wolz, Richard Battye
We conduct the first case study towards developing optimal foreground mitigation strategies for neutral hydrogen (HI) intensity mapping using radio interferometers at low redshifts…
Self-calibration of photometric redshift scatter from DECaLS DR8 power spectrum and validation with simulated catalogues
Hui Peng, Haojie Xu, Le Zhang +2
The uncertainty in the photometric redshift estimation is one of the major systematics in weak lensing cosmology. The self-calibration method is able to reduce this systematics wit…
FIMP Dark Matter from Leptogenesis in Fast Expanding Universe
Zhi-Fang Chang, Zhao-Xuan Chen, Jia-Shu Xu +1
Within the framework of canonical type-I seesaw, a feebly interacting massive particle (FIMP) is introduced as a dark matter candidate. The leptogenesis mechanism and dark matt…
Extracting HI Astrophysics from Interferometric Intensity Mapping
Zhaoting Chen, Laura Wolz, Marta Spinelli +1
We present a new halo model of neutral hydrogen (HI) calibrated to galaxy formation simulations at redshifts and that we employ to investigate the constrainin…