28 citations · 62 across the 9 of their papers we have counts for
9 papers
Density-Shear Baryon Acoustic Oscillation as a Cosmological Consistency Check
Kwan Chuen Chan, Yin Li, Jamie McCullough
Tensions often arise between different datasets in cosmology, and consistency tests can serve as a powerful tool for diagnosing potential issues. Density-shear Baryon Acoustic Osci…
Recovery of 21 cm BAO: a configuration-space correlation function analysis
Zhongyue Zhang, Kwan Chuen Chan, Santiago Avila +1
Intensity mapping (IM) represents an innovative and potent probe to cosmology. One of its prime applications is to measure the Baryonic Acoustic Oscillations (BAO) in the late univ…
Photo- Estimation with Normalizing Flow
Yiming Ren, Kwan Chuen Chan, Le Zhang +6
Accurate photometric redshift (photo-) estimation is a key challenge in cosmology, as uncertainties in photo- directly limit the scientific return of large-scale structure an…
Testing the Equivalence Principle on Cosmological Scales Using Peculiar Acceleration Power Spectrum
Guoyuan Lu, Yi Zheng, Le Zhang +3
While the (weak) Equivalence Principle (EP) has been rigorously tested within the solar system, its validity on cosmological scales, particularly in the context of dark matter and…
Optimizing Redshift Distribution Inference through Joint Self-Calibration and Clustering-Redshift Synergy
Weilun Zheng, Kwan Chuen Chan, Haojie Xu +2
Accurately characterizing the true redshift (true-) distribution of a photometric redshift (photo-) sample is critical for cosmological analyses in imaging surveys. Clusterin…
Measurement of the photometric Baryon Acoustic Oscillations with self-calibrated redshift distribution
Ruiyu Song, Kwan Chuen Chan, Haojie Xu +1
We use a galaxy sample derived from the DECaLS DR9 to measure the Baryonic Acoustic Oscillations (BAO). The magnitude-limited sample consists of 10.6 million galaxies in an area of…
Forecast of Neutrino Cosmology from the CSST Photometric Galaxy Clustering and Cosmic Shear Surveys
Hengjie Lin, Yan Gong, Xuelei Chen +3
China Space Station Telescope (CSST) is a forthcoming powerful Stage IV space-based optical survey equipment. It is expected to explore a number of important cosmological problems…
Clustering with general photo- uncertainties: Application to Baryon Acoustic Oscillations
Kwan Chuen Chan, Ismael Ferrero, Santiago Avila +3
Photometric data can be analyzed using the three-dimensional correlation function to extract cosmological information via e.g., measurement of the Baryon Acoustic Oscil…
Measurement of Void Bias Using Separate Universe Simulations
Kwan Chuen Chan, Yin Li, Matteo Biagetti +1
Cosmic voids are biased tracers of the large-scale structure of the universe. Separate universe simulations (SUS) enable accurate measurements of this biasing relation by implement…