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arXiv · 1506.08470

Reviewing the case of the atypical central-engine activity in GRB 110709B

Nissim Fraija·Enrique Moreno-Méndez·Barbara Patricelli
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Abstract

The unusual GRB 110709B triggered Swift/BAT twice, with a time difference of $\sim 11$ minutes. Its light curve presented three noticeable peaks but only two were originally identified. In this work, we describe each peak as due to a different central-engine phase: the first one is the millisecond-protomagnetar stage, the second one is the BH-formation collapse phase and the last one is the Collapsar scenario with a Blandford-Znajek engine. Additionally, we analyze and explain the afterglow phase evoking the standard fireball model. Our model can successfully describe the timescales, fluxes and spectral indices observed for GRB 110709B.

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Nissim Fraija, Enrique Moreno-Méndez, Barbara Patricelli. 2015-06-28. Reviewing the case of the atypical central-engine activity in GRB 110709B. https://arxiv.org/abs/1506.08470

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