514 citations · 1.7k across the 45 of their papers we have counts for
6 papers · 1 filter
Accurate Shear Estimation with Fourth-Order Moments
Andy Park, Xiangchong Li, Rachel Mandelbaum
As imaging surveys progress in exploring the large-scale structure of the Universe through the use of weak gravitational lensing, achieving subpercent accuracy in estimating shape…
Analytical Noise Bias Correction for Precise Weak Lensing Shear Inference
Xiangchong Li, Rachel Mandelbaum, The LSST Dark Energy Science Collaboration
Noise bias is a significant source of systematic error in weak gravitational lensing measurements that must be corrected to satisfy the stringent standards of modern imaging survey…
A Hamiltonian, post-Born, three-dimensional, on-the-fly ray tracing algorithm for gravitational lensing
Alan Junzhe Zhou, Yin Li, Scott Dodelson +4
The analyses of the next generation cosmological surveys demand an accurate, efficient, and differentiable method for simulating the universe and its observables across cosmologica…
Matching Cosmic Shear Analysis in Harmonic and Real Space
Andy Park, Sukhdeep Singh, Xiangchong Li +2
Recent cosmic shear analyses have exhibited discrepancies of up to between the inferred cosmological parameters when analyzing summary statistics in real space versus harmonic…
Exploring the baryonic effect signature in the Hyper Suprime-Cam Year 3 cosmic shear two-point correlations on small scales: the tension remains present
Ryo Terasawa, Xiangchong Li, Masahiro Takada +10
The baryonic feedback effect is considered as a possible solution to the so-called tension indicated in cosmic shear cosmology. The baryonic effect is more significant on sma…
The SRG/eROSITA All-Sky Survey: Weak-Lensing of eRASS1 Galaxy Clusters in KiDS-1000 and Consistency Checks with DES Y3 & HSC-Y3
Florian Kleinebreil, Sebastian Grandis, Tim Schrabback +21
We aim to participate in the calibration of the X-ray photon count rate to halo mass scaling relation of galaxy clusters selected in the first eROSITA All-Sky Survey on the Western…