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Statistical interpretation of the spatial distribution of current 130 GeV gamma-ray line signal within the dark matter annihilation scenario
Rui-Zhi Yang, Qiang Yuan, Lei Feng +2
Recently, several groups identified a tentative -ray line signal with energy GeV in the central Galaxy from the Fermi-LAT data. %The morphology study shows that the s…
GRB 120422A: A Low-luminosity Gamma-ray Burst Driven by Central Engine
Bin-Bin Zhang, Yi-Zhong Fan, Rong-Feng Shen +6
GRB 120422A is a low-luminosity Gamma-ray burst (GRB) associated with a bright supernova, which distinguishes itself by its relatively short T90 ~ 5 s and an energetic X-ray tail.…
Fermi Large Area Telescope observations of GRB 110625A
P. H. Thomas Tam, Albert K. H. Kong, Yi-Zhong Fan
Gamma-ray bursts (GRBs) that emit photons at GeV energies form a small but significant population of GRBs. However, the number of GRBs whose GeV-emitting period is simultaneously o…
PAMELA/Fermi-LAT electron cosmic ray spectrum at 100 GeV: implication for dark matter annihilation signal in accordance with the 130 GeV -ray line
Lei Feng, Qiang Yuan, Xiang Li +1
Recently, a tentative 130 GeV -ray line signal was identified by quite a few groups. If correct it would constitute a ``smoking gun'' for dark matter annihilations. Interestingl…
The photospheric radiation model for the prompt emission of Gamma-ray Bursts: Interpreting four observed correlations
Yi-Zhong Fan, Da-Ming Wei, Fu-Wen Zhang +1
We show that the experiential , , and correlations (where is the time-averaged luminosity of the prompt emission, $E_{…