Astronomy and Astrophysics – Astrophysics
Scientific paper
1997-03-27
Astrophys.J. 492 (1998) 683-689
Astronomy and Astrophysics
Astrophysics
AAS macro aaspp4.sty and psfig.tex (version 1.9) used, 19 pages and 7 figures, ApJ in press. Minor changes relative to the 2nd
Scientific paper
10.1086/305056
We compute burst spectra and time structures arising from synchrotron and inverse Compton scattering by non-thermal electrons accelerated in shocks which form during the interaction between a thin ultra-relativistic fireball and a stationary external medium. We investigate the effect of varying the most important model parameters on the resulting burst spectra, and we present a set of correlations among the spectral and temporal features of the bursts. The spectral hardness, various spectral-temporal correlations and the spectral evolution of the simulated bursts are compared to those of observed bursts for a representative set of model parameters. Multi-pulse structures are simulated using a variable magnetic field and anisotropic emission, and the most important spectral and temporal properties of these pulses are compared with observations.
Meszaros Peter
Panaitescu Alin
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