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2005MNRAS.364L..42F - Mon. Not. R. Astron. Soc., 364, L42-L46 (2005/November-3)
Late internal-shock model for bright X-ray flares in gamma-ray burst afterglows and GRB 011121.
FAN Y.Z. and WEI D.M.
Abstract (from CDS):
The sharp decline of the X-ray flares detected in GRB 011121, XRF 050406, GRB 050502b and GRB 050730 rules out the external forward-reverse shock model directly and favours the `late internal-shock model'. These X-ray flares could thus hint that the central engine has begun to operate again and a new unsteady relativistic outflow is generated just a few minutes after the intrinsic hard burst.
Abstract Copyright: 2005 RAS
Journal keyword(s): radiation mechanisms: non-thermal - ISM: jets and outflows - gamma-rays: bursts - X-rays: general
Simbad objects: 7
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