Tong-Jie Zhang

activity

20232026

most citedNovel Cosmological Joint Constraints in Multidimensional Observables Space with Redshift-free Inferences

4 citations · 4 across the 4 of their papers we have counts for

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Showing 2025Show all

2 papers · 1 filter

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.CO2025

FLRW Kinematic-Induced Measurement of the Hubble Constant from Cosmic Chronometer and Redshift Drift Observations

Kang Jiao, Tong-Jie Zhang, Liang Gao +1

We present a geometric embedding method that exploits the exact kinematic relation $z ˙ = H_{0} (1 + z) - H (z)$ to transform redshift misalignment between Cosmic Chronometer (CC)…