We investigate the recent proposal made by Rees and Mészáros (1994) that GRBs result from internal shocks in the relativistic wind emerging from two coalesced neutron stars. Using a simple model of that wind, where a large number of layers with different Lorentz factors interact through a series of mildly relativistic shocks we compute the efficiency of the process and the time profile of the resulting burst. We show that a great variety of profiles can be obtained using plausible initial distributions of Lorentz factors in the wind. However, the rather low overall efficiency (< 10%) of the process and limits imposed on the burst duration can be used to put severe constraints on the nature of the energy source.
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Eichler, D., Livio, M., Piran, T. and Schramm, D.N.: 1989,Nature 340, 126.
Goodman, J.: 1986,Astrophys. J. 308, L47.
Mészáros, P. and Rees, M.J.: 1992,Monthly Notices Roy. Astron. Soc. 257, 29p.
Mészáros, P. and Rees, M.J.: 1994, Preprint
Mochkovitch, R., Hernanz, M., Isern, J. and Loiseau, S.: 1995,Astron. Astrophys. 293, 803.
Narayan, R., Piran, T. and Shemi, A.: 1991,Astrophys. J. 379, L17.
Narayan, R., Paczyński, B. and Piran, T.: 1992,Astrophys. J. 395, L83.
Paczyński, B.: 1986,Astrophys. J. 308, L51.
Paczyński, B.: 1990,Astrophys. J. 318, 363.
Rees, M.J. and Mészáros, P.: 1992,Monthly Notices Roy. Astron. Soc. 258, 41p.
Rees, M.J. and Mészáros, P.: 1994, Preprint.
Shemi, A. and Piran, T.: 1990,Astrophys. J. 365, L55.
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Mochkovitch, R., Maitia, V. & Marques, R. Internal shocks in a relativistic wind as a source for gamma-ray bursts?. Astrophys Space Sci 231, 441–444 (1995). https://doi.org/10.1007/BF00658666
- Gamma-ray bursts
- Relativistic wind
- Shock waves