6 papers
Radiation Spectrum of the Photospheric Emission for a Turbulent Relativistic Jet
Guo-Yu Li, Da-Bin Lin, Zhi-Lin Chen +1
The prompt -rays of gamma-ray bursts (GRBs) may originate from the photosphere of a relativistic jet. However, only a few GRBs have been observed with evident blackbody-like em…
Jet precession in gamma-ray bursts: The roles of fallback accretion and disk dynamics
Yun-Peng Li, Da-Bin Lin, Guo-Yu Li +1
The precession phenomenon of the jet in a gamma-ray burst (GRB) is a key probe of the physics of the central engine. Previous studies generally assumed a fixed precession period wh…
Variabilities of Gamma-ray Bursts from the Dynamics of Fallback Material after Tidal Disruption
Yun-Peng Li, Da-Bin Lin, Guo-Yu Li +2
The gamma-ray burst (GRB) GRB 211211A and GRB 060614, believed to originate from the merger of compact objects, exhibit similarities to the jetted tidal disruption event (TDE) Sw J…
Depolarization by jet precession in early optical afterglows of gamma-ray bursts
Bao-Quan Huang, Tong Liu, Guo-Yu Li
Polarization observations provide a unique way to probe the nature of jet magnetic fields in gamma-ray bursts (GRBs). Currently, some GRBs have been detected to be polarized in the…
Probing blackbody components in gamma-ray bursts from black hole neutrino-dominated accretion flows
Xiao-Yan Li, Tong Liu, Bao-Quan Huang +4
A stellar-mass black hole (BH) surrounded by a neutrino-dominated accretion flow (NDAF) is generally considered to be the central engine of gamma-ray bursts (GRBs). Neutrinos escap…
Origin of TeV Emission in GRB 221009A: Co-effort of the External Reverse and Forward Shocks
Zhi-Lin Chen, Da-Bin Lin, Guo-Yu Li +1
The TeV emission detected in just five gamma-ray bursts (GRBs) is generally ascribed to the synchrotron emission or the synchrotron self-Compton process in the external forward sho…