7 papers
Redshift-Dependent Intrinsic Dispersion in the Quasar UV/X-ray Luminosity Relation
Jiaze Gao, Jianping Hu, Yun Chen +2
Accurate modeling of the intrinsic dispersion in the quasar UV/X-ray luminosity relation is essential for reliable cosmological inference. We investigate its redshift dependence us…
Deep Learning Calibration of the Quasar X-ray/UV Luminosity Relation for Cosmological Applications
Jiaze Gao, Yun Chen, Lixin Xu +2
Quasars can serve as standard candles through an empirical scaling relation between their ultraviolet (UV) and X-ray luminosities. As high-redshift probes, it is critical to test w…
Redshift Evolution of the HII Galaxy - Relation: Gaussian Process Analysis and Cosmological Implications
Jiaze Gao, Yun Chen, Lixin Xu
The empirical correlation between the H luminosity () and the ionized gas velocity dispersion () in HII starburst galaxies (HIIGs) provides a foundation for using them a…
Detection of gamma-ray burst Amati relation based on Hubble data set and Pantheon+ samples
Yufen Han, Jiaze Gao, Gang Liu +1
Using gamma-ray bursts as standard candles for cosmological parameter constraints rely on their empirical luminosity relations and low-redshift calibration. In this paper, we exami…
Cosmological Constraints on Thermal Friction of Axion Dark Matter
Gang Liu, Yuhao Mu, Zhihuan Zhou +1
In this paper, we investigate the process in which axion dark matter undergoes thermal friction, resulting in energy injection into dark radiation, with the aim of mitigating the H…
Mitigating Cosmological Tensions via Momentum-Coupled Dark Sector Model
Gang Liu, Jiaze Gao, Yufen Han +2
In this paper, we investigate the momentum coupling between early dark energy (EDE) and cold dark matter to alleviate cosmological tensions. EDE has exhibited promising efficacy in…