125 citations · 271 across the 14 of their papers we have counts for
13 papers · 1 filter
Studies on the dark sector interaction from joint analysis of cosmological probes
Jianfeng Meng, Xiaofeng Yang, Yunliang Ren +4
We test whether constraints on the nonlinear interaction IDE are stable under different treatments of the Type Ia supernovae absolute calibration. \textit{Fermi} GRBs measuremen…
Redshift-binned constraints on the Hubble constant under CDM, CPL, and Padé cosmography
Zhi-Yuan Mo, Kang Jiao, Tong-Jie Zhang
Motivated by recent claims of a possible redshift dependence in late-Universe determinations of the Hubble constant (H_0), we test the robustness of this behavior using multiple co…
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…
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 to transform redshift misalignment between Cosmic Chronometer (CC)…
Constraints on Baryon Density from the Effective Optical Depth of High-Redshift Quasars
Wen-Fei Liu, Yuan-Bo Xie, Zhi-E Liu +4
We present constraints on the baryonic matter density parameter, , within the framework of the CDM model. Our analysis utilizes observational data on the effective optical…
A Non-parametric Reconstruction of the Hubble Parameter Based on Radial Basis Function Neural Networks
Jian-Chen Zhang, Yu Hu, Kang Jiao +5
Accurately measuring the Hubble parameter is vital for understanding the expansion history and properties of the universe. In this paper, we propose a new method that supplements t…
A new measurement of the expansion history of the Universe at z=1.26 with cosmic chronometers in VANDELS
E. Tomasetti, M. Moresco, N. Borghi +6
We derive a new constraint on the expansion history of the Universe by applying the cosmic chronometers method, studying the age evolution of high-redshift galaxies with a full-spe…
Novel Cosmological Joint Constraints in Multidimensional Observables Space with Redshift-free Inferences
Wei Hong, Kang Jiao, Yu-Chen Wang +2
Cosmology constraints serve as a crucial criterion in discriminating cosmological models. The traditional combined method to constrain the cosmological parameters designates the co…
Reconstruction of the dark energy scalar field potential by Gaussian process
Jing Niu, Kang Jiao, Peng He +1
Dark energy is believed to be responsible for the acceleration of the universe. In this paper, we reconstruct the dark energy scalar field potential using the Hubble paramet…
New Observational Data from Full-Spectrum Fitting of Cosmic Chronometers in the LEGA-C Survey
Kang Jiao, Nicola Borghi, Michele Moresco +1
In this work, we perform a full-spectrum fitting of 350 massive and passive galaxies selected as cosmic chronometers from the LEGA-C ESO public survey to derive their stellar ages,…
Toward a direct measurement of the cosmic acceleration: the first preparation with FAST
Chang-Zhi Lu, Kang Jiao, Tingting Zhang +2
Damped Lyman- Absorber(DLA) of HI 21cm system is an ideal probe to directly measure cosmic acceleration in real-time cosmology via Sandage-Loeb(SL) test. During short observatio…
Influence of the Bounds of the Hyperparameters on the Reconstruction of Hubble Constant with Gaussian Process
Wen Sun, Kang Jiao, Tong-Jie Zhang
The cosmological model-independent method Gaussian process (GP) has been widely used in the reconstruction of Hubble constant , and the hyperparameters inside GP influence the…
Model-independent measurement of the Hubble Constant and the absolute magnitude of Type Ia Supernovae
Jian-Chen Zhang, Kang Jiao, Tong-Jie Zhang
In this work, we propose a cosmological model-independent and non-local method to constrain the Hubble Constant . Inspired by the quasi cosmological model-independent and $H_0…