3 papers
astro-ph.CO2025
The impact of 2D and 3D BAO measurements on the Cosmic Distance Duality Relation with HII galaxies
Jie Zheng, Da-Chun Qiang, Zhi-Qiang You +1
The cosmic distance duality relation (CDDR) is a fundamental and practical condition in observational cosmology that connects the luminosity distance and angular diameter distance.…
astro-ph.CO2024
Cosmological constraints on dark energy models using DESI BAO 2024
Jie Zheng, Da-Chun Qiang, Zhi-Qiang You
Recently, the measurements of baryon acoustic oscillations (BAO) by the Dark Energy Spectroscopic Instrument (DESI) indicate a potential deviation from the standard CDM model. S…
astro-ph.HE2024
Unsupervised Machine Learning for Classifying CHIME Fast Radio Bursts and Investigating Empirical Relations
Da-Chun Qiang, Jie Zheng, Zhi-Qiang You +1
Fast Radio Bursts (FRBs) are highly energetic millisecond-duration astrophysical phenomena typically categorized as repeaters or non-repeaters. However, observational limitations m…