Radio Emission from Pulsar Wind Nebulae without Initial Supernova Ejecta: Application to FRB 121102 [HEAP]

http://arxiv.org/abs/1702.05831


In this paper, we propose a new scenario in which a rapidly-rotating strongly magnetized pulsar without the associated supernova ejecta produces fast radio bursts (FRBs) repeatedly via some mechanisms, and meanwhile an ultra-relativistic electron/positron pair wind from the pulsar sweeps up its ambient dense interstellar medium, giving rise to a non-relativistic pulsar wind nebula (PWN). We show that the synchrotron radio emission from such a PWN is bright enough to account for the recently-discovered persistent radio source associated with the repeating FRB 121102 in reasonable ranges of the model parameters. In addition, our PWN scenario is consistent with the non-evolution of the dispersion measure inferred from all the repeating bursts observed in four years.

Read this paper on arXiv…

Z. Dai, J. Wang and Y. Yu
Tue, 21 Feb 17
5/70

Comments: 5 pages, 1 figure

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