A generic dynamical model of gamma-ray burst remnants |
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| Authors: | Y F Huang Z G Dai T Lu |
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| Institution: | Department of Astronomy, Nanjing University, Nanjing 210093, China; CCAST (World Laboratory), PO Box 8730, Beijing 100080, China; LCRHEA, IHEP, CAS, Beijing 100039, China |
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| Abstract: | The conventional generic model is considered to explain the dynamics of gamma-ray burst remnants very well, no matter whether they are adiabatic or highly radiative. However, we find that, for adiabatic expansion, the model cannot reproduce the Sedov solution in the non-relativistic phase, and thus it needs to be revised. In this paper a new differential equation is derived. The generic model based on this equation is shown to be correct for both radiative and adiabatic fireballs, and in both ultrarelativistic and non-relativistic phases. |
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| Keywords: | hydrodynamics relativity shock waves gamma-rays: bursts |
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