14 papers
Short-duration GRB 250221A Afterglow Driven by Two-Component Jets from the merger of a compact star
Xiao Tian, Hou-Jun Lü, Xiao-Xuan Liu +4
GRB 250221A is a short gamma-ray burst (GRB) at redshift , with a duration of 1.8 s and no extended emission in either Swift/Burst Alert Telescope or Konus-Wind bands. A r…
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…
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…
Probing the Nature of High-Redshift Long GRB 250114A and Its Magnetar Central Engine
Wen-Yuan Yu, Hou-Jun Lü, Xiao Tian +2
GRB 250114A is a long-duration gamma-ray burst (GRB) which triggered the Swift/BAT with a spectroscopic high-redshift at . The light curve of the prompt emission is comp…
The color evolution of magnetar-powered kilonova emission in merging neutron star-neutron star systems
Suo-Ning Wang, Hou-Jun Lü, Xiao-Xuan Liu +3
The first direct detection of the gravitational wave (GW) event GW170817 and its electromagnetic (EM) counterpart open a new window for studying of multi-messenger astronomy. Howev…
Signature of a magnetar central engine with precession motion in the X-ray emission of GRB 220711B
Ying-Ze Shan, Xing Yang, Hou-Jun Lü +6
The -ray light curve of long-duration GRB 220711B, is characterized by a multi-peaked structure with a duration lasting 105 seconds. More interestingly, the X-ray afterglo…
Neutron Star-White Dwarf Merger as One Possible Optional Source of Kilonova-like Emission: Implications for GRB 211211A
Xiao-Xuan Liu, Hou-Jun Lü, Qiu-Hong Chen +2
Long-duration GRB 211211A, which lacked an associated supernova at such a low redshift , but was associated with a possible kilonova emission, has attracted great attentio…
Constraining the Nuclear Equation of State of neutron star via high-frequency quasi-periodic oscillation in short gamma-ray bursts
Jun-Xiang Huang, Hou-Jun Lü, En-Wei Liang
The determination of the equation of state (EOS) of a neutron star (NS) and its maximum mass is very important for understanding the formation and properties of NSs under extreme c…
Discovery of high-frequency quasi-periodic oscillation in short-duration gamma-ray bursts
Xing Yang, Hou-Jun Lü, Jared Rice +1
Rapidly rotating newborn magnetars, which originate from binary neutron star (NS) mergers and serve as the central engines of short gamma-ray bursts (GRBs), may leave some imprints…
Constraining the Cosmic-ray Energy Based on Observations of Nearby Galaxy Clusters by LHAASO
The LHAASO Collaboration, Zhen Cao, F. Aharonian +323
Galaxy clusters act as reservoirs of high-energy cosmic rays (CRs). As CRs propagate through the intracluster medium, they generate diffuse -rays detectable by arrays such as LH…
Neutrino constraints and detection prospects from gamma-ray bursts with different jet compositions
Yang-Dong-Jun Ou, Hou-Jun Lü, Xue-Zhao Chang +2
The prompt emission mechanism of gamma-ray bursts (GRBs) is a long-standing open question, and GRBs have been considered as potential sources of high-energy neutrinos. Despite many…
Shear Particle Acceleration in Structured Gamma-Ray Burst Jets: I. Physical Origin of the Band Function and Application to GRBs 090926A, 131108A, and 160509A
Zi-Qi Wang, Xiao-Li Huang, En-Wei Liang
The radiation physics of gamma-ray bursts (GRBs) remains an open question. Based on the simulation analysis and recent observations, it was proposed that GRB jets are composed of a…
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…
A Comprehensive Analysis of Text-Book-Version Afterglow Light curves of Gamma-Ray Bursts and Implication for Universal Radiation Physics of Baryonic Jets
Lu-Lu Zhang, Shu-Qing Zhong, Li-Ping Xin +1
The standard external shock model in the thin-shell scenario predicts an onset bump in the early optical afterglow light curves of gamma-ray bursts (GRBs). We collect such a textbo…