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Prompt GeV Emission from Residual Collisions in GRB Outflows: Evidence from Fermi Observations of GRB 080916c
Zhuo Li
The gamma-rays from gamma-ray bursts (GRBs) are believed to be produced by internal shocks driven by small timescale, ~1 ms, variation in the GRB outflows, and a pair-production sp…
Non-thermal emission from supernova shock breakout and the origin of the X-ray transient associated with SN2008D
Xiang-Yu Wang, Zhuo Li, Eli Waxman +1
We suggest that non-thermal emission can be produced by multiple scatterings of the photons between the supernova ejecta and pre-shock material in supernova shock breakout. Such bu…
Prompt optical emission from residual collisions in GRB outflows
Zhuo Li, Eli Waxman
The prompt gamma-ray emission in gamma-ray bursts is believed to be produced by internal shocks within a relativistic unsteady outflow. The recent detection of prompt optical emiss…
Photon Acceleration at Shock Breakout of Trans-Relativistic Supernova
Zhuo Li, Xiang-Yu Wang, Eli Waxman +1
The predicted thermal flash from SN shock breakout might have been detected for the first time by Swift in GRB 060218/SN 2006aj. The detected thermal X-ray emission in this event i…
High-Energy Gamma-Rays from GRB X-ray Flares
Xiang-Yu Wang, Zhuo Li, Peter Meszaros
The recent detection of X-ray flares during the afterglow phase of gamma-ray bursts (GRBs) suggests an inner-engine origin, at radii inside the forward shock. There must be inverse…
Nonthermal gamma-ray and X-ray flashes from shock breakout in gamma-ray bursts/supernovae
Xiang-Yu Wang, Zhuo Li, Eli Waxman +1
Thermal X-ray emission which is simultaneous with the prompt gamma-rays has been detected for the first time from a supernova connected with a gamma-ray burst (GRB), namely GRB0602…