8 papers
Towards precision cosmology with Void x CMB correlations (II): Impact of mock catalogs on the Void x CMB lensing signal
Mar Pérez Sar, Carlos Hernández Monteagudo, András Kovács +2
Gravitational lensing by large-scale structure imprints secondary anisotropies on the Cosmic Microwave Background (CMB) that can be exploited to probe cosmology. In particular, cos…
Correlation between baryonic process and galaxy assembly bias
Zilan Xiao, Junyu Hua, Zhongxu Zhai +2
Galaxy assembly bias (GAB) is the dependence of galaxy clustering on secondary properties beyond halo mass. In this work, we study the connections between GAB and baryonic processe…
Lossless Compression of Cosmological Information from Type Ia Supernova Distance Measurements
Zhenyuan Wang, Yun Wang
We perform model-independent distance measurements on four Type Ia supernovae (SNe Ia) compilations (Pantheon, Pantheon+, DES-Dovekie, Union3) and compress each dataset into the va…
A graph-based Neural Network surrogate model for accelerating semi-analytical model of galaxy formation and evolution
Xuejie Li, Zhongxu Zhai, Xiaohu Yang +2
Understanding how galaxy populations emerge and evolve from the growth of dark matter structure is a central challenge in galaxy formation theory. Semi-analytic models (SAMs) provi…
Model-Independent Analysis of Type Ia Supernova Datasets and Implications for Dark Energy
Zhenyuan Wang, Yun Wang
Recent analyses combining DESI DR2 BAO with CMB and SNe Ia data have reported -- evidence for dynamical dark energy, but the significance depends strongly on the supern…
Model-Independent Dark Energy Measurements from DESI DR2 and Planck 2015 Data
Yun Wang, Katherine Freese
Using DESI DR2 baryon acoustic oscillation (BAO) distance measurements and Planck cosmic microwave background distance priors, we have measured the dark energy density an…