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Article Contents
1 Introduction
2 Main assumptions of the EMBH model
3 The radiation flux from the PEM pulse
4 The arrival time versus emission time
5 The radiation flux with respect to arrival time for an infinitely thin fireball
6 The radiation flux with respect to arrival time for a thick fireball
7 The temporal structure and time duration
8 General considerations about the spectrum
9 Conclusions
Appendix A Electron-positron pairs annihilation and GRBs
Appendix B The screening factor in the radiation flux
References

Copyright ESO 2001
Published by EDP Sciences