10 papers
X-ray flares: late internal and late external shocks
X. F. Wu, Z. G. Dai, X. Y. Wang +3
We analyze several recently detected gamma-ray bursts (GRBs) with late X-ray flares in the context of late internal shock and late external shock models. We find that the X-ray fla…
A Two-Component Explosion Model for the Giant Flare and Radio Afterglow from SGR1806-20
Z. G. Dai, X. F. Wu, X. Y. Wang +2
The brightest giant flare from the soft -ray repeater (SGR) 1806-20 was detected on 2004 December 27. The isotropic-equivalent energy release of this burst is at least one order…
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…
Gamma-Ray Bursts: Polarization of Afterglows from Two-Component Jets
X. F. Wu, Z. G. Dai, Y. F. Huang +1
Polarization behaviors of optical afterglows from two-component gamma-ray burst jets are investigated, assuming various configurations for the two components. In most cases, the ob…
Analytical light curves in the realistic model for GRB afterglows
X. F. Wu, Z. G. Dai, Y. F. Huang +1
(abridged) Afterglow light curves are constructed analytically for realistic gamma-ray burst remnants decelerating in either a homogeneous interstellar medium or a stellar wind env…
Testing the Predictions of the Universal-Structured Jet Model of Gamma-Ray Bursts by Simulations
E. W. Liang, X. F. Wu, Z. G. Dai
Based on the standard energy reservoir of gamma-ray burst (GRB) jets and the relationship between peak energy () of spectrum and the equivalent-isotropic energy ($E_{\r…