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A statistical model for the -ray variability of the Crab nebula
Qiang Yuan, Peng-Fei Yin, Xue-Feng Wu +3
A statistical scenario is proposed to explain the -ray variability and flares of the Crab nebula, which were observed recently by the Fermi/LAT. In this scenario electrons are a…
The Internal-Collision-Induced Magnetic Reconnection and Turbulence (ICMART) Model of Gamma-Ray Bursts
Bing Zhang, Huirong Yan
The recent Fermi observation of GRB 080916C shows that the bright photosphere emission associated with a putative fireball is missing, which suggests a Poynting-flux-dominated outf…
Discerning the physical origins of cosmological Gamma-ray bursts based on multiple observational criteria: the cases of z=6.7 GRB 080913, z=8.3 GRB 090423, and some short/hard GRBs
Bing Zhang, Bin-Bin Zhang, Francisco J. Virgili +10
(Abridged) The two high-redshift gamma-ray bursts, GRB 080913 at z=6.7 and GRB 090423 at z=8.3, recently detected by Swift appear as intrinsically short, hard GRBs. They could have…
Naked-eye optical flash from GRB 080319B: Tracing the decaying neutrons in the outflow
Yi-Zhong Fan, Bing Zhang, Da-Ming Wei
For an unsteady baryonic gamma-ray burst (GRB) outflow, the fast and slow proton shells collide with each other and produce energetic soft gamma-ray emission. If the outflow has a…