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arXiv · astro-ph/9703187

Simulations of Gamma-Ray Bursts from External Shocks: Time Variability and Spectral Correlations

A. Panaitescu·P. Meszaros
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Abstract

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.

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A. Panaitescu, P. Meszaros. 1997-08-07. Simulations of Gamma-Ray Bursts from External Shocks: Time Variability and Spectral Correlations. https://doi.org/10.1086/305056

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