31 citations · 79 across the 10 of their papers we have counts for
11 papers
Guide for the Hubble Tension: Mid-Time Solutions and Generalized PAge Parameterizations
Jing-Yi Jia, Da-Chun Qiang, Hao Wei
In cosmology, the Hubble tension has become one of the most serious challenges in the last decade. Assuming that all the observational data are right, one of the ways out is to mod…
Revisiting the equation of state of dark energy from DESI BAO with SNe Ia and CMB
Jie Zheng, Da-Chun Qiang, Zhi-Qiang You +1
The Dark Energy Spectroscopic Instrument (DESI) measurements of baryon acoustic oscillations (BAO) have recently shown a mild preference for dynamical dark energy over the standard…
Decadal pre-explosion activity and circumstellar interaction in a supernova
Ting-Wan Chen, Amar Aryan, Sheng Yang +52
When a massive star explodes as a supernova, crucial information about its immediate environment is lost within hours. Here we report rapid optical observations from Lulin Observat…
From Nonparametric Distance Reconstruction to Testing the Etherington Relation and Cosmic Curvature Using 2D and 3D BAO Measurements
Darshan Kumar, Jie Zheng, Zhi-Qiang You +1
We present a joint test of cosmic curvature, , and the cosmic distance-duality relation (CDDR) using the Etherington relation, which connects the luminosity and angular dia…
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.…
New Insights into Dark Energy from DESI DR2 with CMB and SNIa
Da-Chun Qiang, Jing-Yi Jia, Hao Wei
Analyses by the Dark Energy Spectroscopic Instrument (DESI) collaboration suggest a significant deviation from the CDM model when their baryon acoustic oscillation (BAO) measure…
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…
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…
3D Localization of FRB 20190425A for Its Potential Host Galaxy and Implications
Da-Chun Qiang, Zhiqiang You, Sheng Yang +2
Fast radio bursts (FRBs) are high-energy, short-duration phenomena in radio astronomy. Identifying their host galaxies can provide insights into their mysterious origins. In this p…
Checking the Empirical Relations with the Current Localized Fast Radio Bursts
Lin-Yu Li, Jing-Yi Jia, Da-Chun Qiang +1
Although fast radio bursts (FRBs) were discovered more than a decade ago, and they have been one of the active fields in astronomy and cosmology, their origins are still unknown. A…
Fast Radio Burst Distributions Consistent with the First CHIME/FRB Catalog
Da-Chun Qiang, Shu-Ling Li, Hao Wei
Currently, fast radio bursts (FRBs) have become a very active field in astronomy and cosmology. However, the origin of FRBs is still unknown to date. The studies on the intrinsic F…