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Cosmological Constraints on the DGP Model in light of DESI DR2 2025 Data
Xinyi Dai, Yupeng Yang, Yicheng Wang
We present updated constraints on both flat and non-flat Dvali-Gabadadze-Porrati (DGP) cosmological models using the latest baryon acoustic oscillation (BAO) measurements from the…
A Review on Resolving the Hubble Tension via Late-Universe Physics
Xuan-Dong Jia, Xin-Yi Dai, Yu-Peng Yang +1
The CDM cosmological model has been successful in explaining many astronomical observations. However, recent observations increasingly point to deviations from the standard $Î…
Comprehensive Analysis of Optical brightness and Color Variability of Blazars in the ZTF Survey DR22
Qi Yuan, Xin Wang, Meng Zhang +6
This study conducts a comprehensive analysis of brightness and color variability in blazars, utilizing over six years of quasi-simultaneous g-band and r-band data from 1149 sources…
Cosmological constraints on the big bang quantum cosmology model
Yicheng Wang, Yupeng Yang, Xinyi Dai +3
The big bang quantum cosmology model introduces the trace of the Schouten tensor as a form of dynamic dark energy. Together with cold dark matter, these components form the so-…
Redshift evolution of the Hubble constant: Constraints and new insights from an interacting dark energy model
Xinyi Dai, Yupeng Yang, Yicheng Wang +3
We develop a modified interacting dark energy (IDE) model to study the redshift evolution of the Hubble constant (), in light of the Hubble tension. In this framework, the ene…
Constraining deviations from CDM in the Hubble expansion rate
Yupeng Yang
The CDM cosmolgical model has long been regarded as highly successful in accurately describing a wide range of astronomical observations. However, numerous observational findin…