Overall Evolution of Realistic Gamma-ray Burst Remnant and Its Afterglow

Abstract

Conventional dynamic model of gamma-ray burst remnants is found to be incorrect for adiabatic blastwaves during the non-relativistic phase. A new model is derived, which is shown to be correct for both radiative and adiabatic blastwaves during both ultra-relativistic and non-relativistic phase. Our model also takes the evolution of the radiative efficiency into account. The importance of the transition from the ultra-relativistic phase to the non-relativistic phase is stressed.

9 pages, aasms4 style, 3 ps figures, minor changes, will be published in Chin. Phys. Lett

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