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Dynamical Evolution of Gamma-Ray Burst Remnants with Evolving Radiative Efficiency | | J.B. Feng
; Y.F. Huang
; Z.G. Dai
; T. Lu
; | | Date: |
30 Oct 2002 | | Journal: | Chin.J.Astron.Astrophys. 2 (2002) 525-532 | | Subject: | astro-ph | | Abstract: | In previous works, a generic dynamical model has been suggested by Huang et al., which is shown to be correct for both adiabatic and radiative blastwaves, and in both ultra-relativistic and non-relativistic phases. In deriving their equations, Huang et al. have assumed that the radiative efficiency of the fireball is constant. They then applied their model directly to realistic cases where the radiative efficiency evolves with time. In this paper, we abandon the above assumption and re-derive a more accurate dynamical equation for gamma-ray burst remnants. Numerical results show that Huang et al.’s model is accurate enough in general cases. | | Source: | arXiv, astro-ph/0210656 | | Services: | Forum | Review | PDF | Favorites | |
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