activity
20242026
most citedMultiple measurements on the cosmic curvature using Gaussian process regression without calibration and a cosmological model

7 citations · 7 across the 5 of their papers we have counts for

collaborators

5 papers

astro-ph.CO2026

Latent-Space Gaussian Processes for Dark-Energy Reconstruction from Observational \(H(z)\) Data

Jia-yan Jiang, Wei Hong, Tong-jie Zhang

Using the 37-point cosmic-chronometer subset of observational Hubble parameter (OHD) data, we develop a Bayesian Gaussian-process framework to reconstruct the normalized dark-energ…

astro-ph.CO2025

New tests of cosmic distance duality relation with DESI 2024 BAO observations

Qiumin Wang, Shuo Cao, Jianyong Jiang +5

In this paper, we test the cosmic distance duality relation (CDDR), as required by the Etherington reciprocity theorem, which connects the angular diameter distance and the luminos…

astro-ph.CO2025

Optimizing Gaussian Process Kernels Using Nested Sampling and ABC Rejection for H(z) Reconstruction

Jia-yan Jiang, Kang Jiao, Tong-Jie Zhang

Recent cosmological observations have achieved high-precision measurements of the Universe's expansion history, prompting the use of nonparametric methods such as Gaussian processe…

astro-ph.CO2024★ 7 cited

Multiple measurements on the cosmic curvature using Gaussian process regression without calibration and a cosmological model

Xiaolong Gong, Yifei Xu, Tonghua Liu +4

In this letter, we propose an improved cosmological model-independent method to measure cosmic curvature, combining the recent measurements of transverse and line-of-sight directio…

astro-ph.CO2024

Distinguishing CDM from evolving dark energy with the future gravitational-wave space-borne detector DECIGO

Yuting Liu, Shuo Cao, Xiaogang Zheng +3

The two point diagnostics was proposed as a litmus test of CDM model and measurements of cosmic expansion rate have been extensively used to perform this…