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astro-ph.CO2025
Model selection using the HII galaxy Hubble diagram
Jun-Jie Wei, Fulvio Melia
The proposal to use HII galaxies (HIIGx) and giant extragalactic HII regions (GEHR) as standard candles to construct the Hubble diagram at redshifts beyond the current reach of Typ…
astro-ph.CO2024
Forecasts for Helium Reionization Detection with Fast Radio Bursts in the Era of Square Kilometre Array
Jun-Jie Wei, Chong-Yu Gao
The observed dispersion measures (DMs) of fast radio bursts (FRBs) are a good indicator of the amount of ionized material along the propagation paths. In this work, we present a fo…
astro-ph.CO2023
Extragalactic Test of General Relativity from Strong Gravitational Lensing by using Artificial Neural Networks
Jing-Yu Ran, Jun-Jie Wei
This study aims to test the validity of general relativity (GR) on kiloparsec scales by employing a newly compiled galaxy-scale strong gravitational lensing (SGL) sample. We utiliz…