212 citations · 830 across the 20 of their papers we have counts for
12 papers · 1 filter
VHE Gamma-ray Afterglow Emission from Nearby GRBs
P. H. Tam, R. R. Xue, S. J. Wagner +3
Gamma-ray Bursts (GRBs) are among the potential extragalactic sources of very-high-energy (VHE) gamma-rays. We discuss the prospects of detecting VHE gamma-rays with current ground…
The synchrotron-self-Compton radiation accompanying shallow decaying X-ray afterglow: the case of GRB 940217
Da-Ming Wei, Yi-Zhong Fan
High energy emission (> tens MeV) of Gamma-Ray Bursts (GRBs) provides an important clue to understand the physical processes involved in GRBs, which may be correlated with the GRB…
A two component jet model for the X-ray afterglow flat segment in short GRB 051221A
Zhi-Ping Jin, Ting Yan, Yi-Zhong Fan +1
In the double neutron star merger or neutron star-black hole merger model for short GRBs, the outflow launched might be mildly magnetized and neutron rich. The magnetized neutron-r…
Late internal shock model for bright X-ray flares in Gamma-ray Burst afterglows and GRB 011121
Y. Z. Fan, D. M. Wei
We explore two possible models which might give rise to bright X-ray flares in GRBs afterglows. One is an external forward-reverse shock model, in which the shock parameters of for…
High Energy Afterglow Emission from Giant Flares of Soft Gamma-Ray Repeaters: The Case of the 2004 December 27 Event from SGR 1806-20
Y. Z. Fan, Bing Zhang, D. M. Wei
We discuss the high enegry afterglow emission (including high energy photons, neutrinos and cosmic rays) following the 2004 December 27 Giant Flare from SGR 1806-20. If the initial…
Early optical-IR emission from GRB 041219a: neutron-rich internal shocks and a mildly magnetized external reverse shock
Y. Z. Fan, Bing Zhang, D. M. Wei
Very early optical and near infrared (IR) emission was discovered accompanying the long gamma-ray burst (GRB) 041219a. We show that the optical/IR flash tracking the gamma-ray ligh…
An energetic blast wave from the December 27 giant flare of the soft gamma-ray repeater 1806-20
X. Y. Wang, X. F. Wu, Y. Z. Fan +2
Recent follow-up observations of the December 27 giant flare of SGR 1806-20 have detected a multiple-frequency radio afterglow from 240 MHz to 8.46 GHz, extending in time from a we…
Early optical afterglow lightcurves of neutron-fed Gamma-ray bursts
Y. Z. Fan, B. Zhang, D. M. Wei
In this paper, within the popular internal shock scenario of GRBs, we calculate the early optical afterglow lightcurves of a neutron-fed GRB fireball for different assumed neutron…
Optical afterglows of short Gamma-ray Bursts and GRB 040924
Y. Z. Fan, Bing Zhang, Shiho Kobayashi +1
Short-duration Gamma-ray bursts (GRBs) (\leq 2{\rm s}) have remained a mystery due to the lack of afterglow detection until recently. The models to interpret short GRBs invoke dist…
Gamma-ray burst internal shocks with magnetization
Y. Z. Fan, D. M. Wei, Bing Zhang
(Please note that the abstract has been significantly shorted) We investigate Gamma-ray Burst (GRB) internal shocks with moderate magnetization, with the magnetization parameter $σ…
UV/Optical Emission Accompanying Gamma-ray Burst
Y. Z. Fan., D. M. Wei
We discuss the possible simultaneously UV/optical emission accompanying Gamma-ray bursts (GRBs). We show that as long as the intrinsic spectrum of GRB can extend to 10 GeV or…
Optical Flash of GRB 990123: constraints on the physical parameter of the reverse shock
Y. Z. Fan, Z. G. Dai, Y. F. Huang +1
The optical flash accompanying GRB 990123 is believed to be powered by the reverse shock of a thin shell. With the best fitted physical parameters for GRB 990123 (Panaitescu & Kuma…