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arXiv · 1805.04448

Fast Radio Bursts from the collapse of Strange Star Crusts

Yue Zhang·Jin-Jun Geng·Yong-Feng Huang
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Abstract

Fast radio bursts (FRBs) are transient radio sources at cosmological distances. No counterparts in other bands have been observed for { non-repeating FRBs}. Here we suggest the collapse of strange star crusts as a possible origin for FRBs. Strange stars, which are composed of almost equal numbers of u, d, and s quarks, may be encapsulated by a thin crust of normal hadronic matter. When a strange star accretes matter from its environment, the crust becomes heavier and heavier. It may finally collapse, leading to the release of a large amount of magnetic energy and plenty of electron/positron pairs on a very short timescale. Electron/positron pairs in the polar cap region of the strange star can be accelerated to relativistic velocities, streaming along the magnetic field lines to form a thin shell. FRBs are produced by coherent emission from these electrons when the shell is expanding. Basic characteristics of observed FRBs can be explained in our model.

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Yue Zhang, Jin-Jun Geng, Yong-Feng Huang. 2018-05-14. Fast Radio Bursts from the collapse of Strange Star Crusts. https://doi.org/10.3847/1538-4357%2Faabaee

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