# An External Shock Origin of GRB $\textit{141028A}$

@article{Burgess2015AnES,
title={An External Shock Origin of GRB \$\textit\{141028A\}\$},
author={J Michael Burgess and Damien B'egu'e and Felix Ryde and Nicola Omodei and Asaf Pe’er and Judith Racusin and A. Cucchiara},
journal={arXiv: High Energy Astrophysical Phenomena},
year={2015}
}
The prompt emission of the long, smooth, and single-pulsed gamma-ray burst, GRB $\textit{141028A}$, is analyzed under the guise of an external shock model. First, we fit the $\gamma$-ray spectrum with a two-component photon model, namely synchrotron+blackbody, and then fit the recovered evolution of the synchrotron $\nu F_{\nu}$ peak to an analytic model derived considering the emission of a relativistic blast-wave expanding into an external medium. The prediction of the model for the $\nu F_… Expand 20 Citations #### Figures and Tables from this paper Bulk Lorentz factors of Gamma-Ray Bursts Knowledge of the bulk Lorentz factor$\Gamma_{0}\$ of GRBs allows us to compute their comoving frame properties shedding light on their physics. Upon collisions with the circumburst matter, theExpand
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