3 papers
astro-ph.CO2026
Interacting dark energy constraints from Fermi GRBs and Pantheon+ SNe Ia with full GRB covariance
Jianfeng Meng, Xiaofeng Yang, Yunliang Ren +4
The standard CDM model faces long-standing theoretical and observational problems, such as the Hubble tension, which motivate extensions beyond CDM, including interacting d…
astro-ph.CO2024
Data reconstruction of the dynamical connection function in cosmology
Yuhang Yang, Xin Ren, Bo Wang +2
We employ Hubble data and Gaussian Processes in order to reconstruct the dynamical connection function in cosmology beyond the coincident gauge. In particular, there exist t…
astro-ph.CO2024
Galaxy-galaxy lensing data: gravity challenges General Relativity
Qingqing Wang, Xin Ren, Bo Wang +3
We use galaxy-galaxy lensing data to test General Relativity and gravity at galaxies scales. We consider an exact spherically symmetric solution of theory which is ob…