4 papers
Constraining Neutrino Mass with the Void Weak Lensing Effect
Wenshuo Xu, Cheng Zhao, Chen Su +2
Cosmic voids, the underdense regions of the Large Scale Structure (LSS), provide cosmological information highly complementary to that obtained from overdense regions. In this work…
Counting voids and filaments: Betti Curves as a Powerful Probe for Cosmology
Jiayi Li, Cheng Zhao
Topological analysis of galaxy distributions has gathered increasing attention in cosmology, as they are able to capture non-Gaussian features of large-scale structures (LSS) that…
Cosmological Constraints with Void Lensing I: the Simulation-Based Inference Framework
Chen Su, Huanyuan Shan, Cheng Zhao +2
We present a Simulation-Based Inference (SBI) framework for cosmological parameter estimation via void lensing analysis. Despite the absence of an analytical model of void lensing,…
ELG Spectroscopic Systematics Analysis of the DESI Data Release 1
Jiaxi Yu, Ashley J. Ross, Antoine Rocher +58
Dark Energy Spectroscopic Instrument (DESI) uses more than 2.4 million Emission Line Galaxies (ELGs) for 3D large-scale structure (LSS) analyses in its Data Release 1 (DR1). Such l…