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Identifying the poynting-flux-dominated outflow of Fermi GRBs with non-thermal spectrum and its energy-resolved light curve fitting
Xue-Zhao Chang, HouJun Lü, Zhao-Wei Du +2
The jet compositions of gamma-ray bursts (GRBs) are very important to understand the energy dissipation and radiation mechanisms, but it remains an open question in GRB physics. In…
How to identify the object with mass range of in the merger of compact star systems
ZhaoWei Du, HouJun Lü, Xiaoxuan Liu +2
High-frequency gravitational-wave (GW) radiation has been detected by LIGO-Virgo-KAGRA in the merger of compact stars. However, two GW events, GW190814 and GW200210, the mass of on…
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…
The X-ray re-brightening of GRB afterglow revisited: a possible signature from activity of the central engine
Zhe Yang, Hou-Jun Lü, Xing Yang +2
Long-duration gamma-ray bursts (GRBs) are thought to be from core collapse of massive stars, and a rapidly spinning magnetar or black hole may be formed as the central engine. The…
Can fallback accretion on magnetar model power the X-ray flares simultaneously observed with gamma-rays of Gamma-ray bursts?
Wen-Yuan Yu, Hou-Jun Lü, Xing Yang +2
The prompt emission, X-ray plateau, and X-ray flares of Gamma-ray bursts (GRB) are thought to be from internal dissipation, and the magnetar as the central engine with propeller fa…
The Jet Composition of GRB 230307A: Poynting-Flux-Dominated Outflow?
Zhao-Wei Du, HouJun Lü, Xiaoxuan Liu +1
The jet composition of GRB plays an important role in understanding the energy dissipation and radiation mechanisms in GRB physics, but it is poorly constrained from the observatio…