activity
20222026
most citedThermal and nonthermal emission from a peculiar long-duration GRB 211211A

31 citations · 32 across the 12 of their papers we have counts for

collaborators

12 papers

astro-ph.HE2026

The Evolution of Thermal and Non-thermal Emission Components in GRB 250920C

Jia-Ming Chen, Ke-Rui Zhu, Shan Chang +5

We present a temporal and time-resolved spectral analysis of GRB 250920C using \textit{Fermi}/GBM and \textit{Swift}/BAT data. The prompt emission consists of two distinct episodes…

astro-ph.HE2026

Modeling Gamma-Ray Burst Spectra with Convolutional Neural Networks: Fast-Cooling Synchrotron Emission in a Decaying Magnetic Field

Jia-Ming Chen, Ke-Rui Zhu, Shan Chang +3

The radiation mechanism of gamma-ray burst (GRB) prompt emission remains uncertain. Although the fast-cooling synchrotron model in a decaying magnetic field can account for the cha…

astro-ph.HE2026

Fast-Cooling Synchrotron in Decaying Magnetic Fields: Implications for the GRB Spectral Distribution

Jia-Ming Chen, Ke-Rui Zhu, Zhao-Yang Peng +5

The prompt-emission spectra of gamma-ray bursts (GRBs) are commonly described by the empirical Band function. The typical low-energy spectral index is , which poses a chal…

astro-ph.HE2025

Evidence for the transition from thermal to non-thermal emission in the prompt emission of GRB 161117A

Xue-Zhao Chang, HouJun Lü, Jia-Ming Chen +1

GRB 161117A is a long-duration GRB with three main overlapping peaks. By analyzing the time-resolved spectra of its data observed with the Gamma-Ray Burst Monitor (GBM) on board th…

astro-ph.HE2025

Constraint on the Physical Origin of Gamma-Ray Burst Prompt Emission via Its Nondetected Diffuse Neutrino Emission

Yang-Dong-Jun Ou, Hou-Jun Lü, Jia-Ming Chen +2

The physical origin of prompt emission in gamma-ray bursts (GRBs) remains an open question since it has been studied more than half a century. Three alternative models (i.e. dissip…

astro-ph.HE2025

A re-identification of six Candidate Gravitationally Lensed Gamma-Ray Bursts

Yu Zhao, Zhao-Yang Peng, Jia-Ming Chen +2

The gravitational lensing effect of gamma-ray bursts (GRBs) holds significant and diverse applications in the field of astronomy. Nevertheless, the identification of millilensing e…

astro-ph.HE2025

A Study of the Spectral Properties of Gamma-Ray Bursts with the Main and Second Bursts

Ze-Lian Du, Zhao-Yang Peng, Jia-Ming Chen +2

The origins of the main burst and second burst of gamma-ray bursts (GRBs) and the composition of their jets remain uncertain. To explore this complex subject more thoroughly, we co…

astro-ph.HE2024

Classification and physical characteristics analysis of Fermi-GBM Gamma-ray bursts based on Deep-learning

Jia-Ming Chen, Ke-Rui Zhu, Zhao-Yang Peng +1

The classification of Gamma-Ray Bursts has long been an unresolved problem. Early long and short burst classification based on duration is not convincing due to the significant ove…

astro-ph.HE2024

The thermal emission in short GRBs with extended emission observed by Fermi/GBM

Xue-Zhao Chang, Hou-Jun Lü, Xing Yang +2

Short gamma-ray bursts (SGRBs) with extended emission (EE) are composed of initial main emission (ME) with a short-hard spike, followed by a long-lasting EE. Whether the ME and EE…

astro-ph.HE2024

A Study of the Spectral properties of Gamma-Ray Bursts with the Precursors and Main bursts

Hui-Ying Deng, Zhao-Yang Peng, Jia-Ming Chen +2

There is no consensus yet on whether the precursor and the main burst of gamma-ray bursts (GRBs) have the same origin, and their jet composition is still unclear. In order to furth…

astro-ph.HE2024★ 1 cited

A comparative analysis of two peculiar long Gamma-ray bursts: GRB 230307A and GRB 211211A

Zhao-Yang Peng, Jia-Ming Chen, Jirong Mao

GRB 211211A is a peculiar long Gamma-ray burst (GRB) with very high brightness and short burst properties. It's full lightcurve consists of three emission episodes, i.e. a precurso…

astro-ph.HE2022★ 31 cited

Thermal and nonthermal emission from a peculiar long-duration GRB 211211A

Xue-Zhao Chang, Hou-Jun Lü, Xing Yang +2

Long-duration GRB 211211A that lacks a supernova emission even down to very stringent limits at such a low redshift and is associated with kilonova emission, suggests tha…