5 citations · 9 across the 5 of their papers we have counts for
5 papers
Spectral Hardness as the Primary Discriminator: Unveiling the Collapsar--Merger Boundary with a Gold-Standard Gamma-Ray Burst Sample
Xue Zhang, Yan-Kun Qu, Shuang-Xi Yi +4
In this Letter, we establish a robust, physically motivated classification method using a Support Vector Machine (SVM) trained on a "gold-standard" sample of 24 GRBs with spectrosc…
Luminosity function of Type II GRBs:differences from long GRBs
Yan-Kun Qu, Zhong-Xiao Man, Yu-Peng Yang +2
Gamma-ray bursts (GRBs) are generally categorized into long and short bursts based on their duration (). Recently, it has been proposed that GRBs can also be classified int…
The redshift evolution of the luminosity function of type II GRBs
Yan-Kun Qu, Zhong-Xiao Man, Yu-Peng Yang +3
As of December 2023, the Swift satellite has detected more than 1600 gamma-ray bursts (GRBs). We select 307 Type II GRBs for constructing the luminosity function (LF) based on the…
Pieces of evidence for multiple progenitors of Swift long gamma-ray bursts
Yan-Kun Qu, Zhong-Xiao Man, Zhi-Bin Zhang
Long gamma-ray bursts (LGRBs) are typically thought to result from the collapse of massive stars. Nonetheless, recent observations of gamma-ray bursts (GRBs) 211211A and 230307A, c…
Luminosity Function of collapsar Gamma-Ray Bursts:the Progenitor of Long Gamma-Ray Bursts Is Not Singular
Yan-Kun Qu, Zhong-Xiao Man, Shuang-Xi Yi +1
Gamma-ray bursts (GRBs) are powerful probes of the high-redshift universe. However, the proportion of collapsar GRBs among long GRBs and their event rate relative to the star forma…