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arXiv 2004.12050astro-ph.HE
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GRB 110715 A是否为FRB 171209的前身?

Is GRB 110715A the progenitor of FRB 171209?

Xiang-Gao Wang, Long Li, Yuan-Pei Yang, Jia-Wei Luo, Bing Zhang, Da-Bin Lin, En-Wei Liang, Song-Mei Qin

摘要:

快速射电暴(FRB)的物理起源是未知的。由伽马射线暴(GRB)产生的年轻磁星被认为可能是FRB的核心引擎。我们通过系统地从110个FRB和1440个GRB中搜索GRB-FRB空间关联来检验这样的假设。我们发现,一个FRB事件,FRB 171209,由帕克斯望远镜发现的是与历史上的长持续时间GRB 110715 A在$z=0.82$空间重合。GRB 110715 A的余辉与毫秒磁星的动力一致。FRB 171209的河外色散测量值超过了星系际介质的贡献,这可以解释为与GRB相关的年轻超新星遗迹的贡献。总体而言,该关联的显著性为$(2.28 - 2.55) σ$。如果这种关联确实是物理的,我们的结果表明,与长伽玛暴相关的磁星可能是至少一些FRB的祖先。

英文摘要:

The physical origin of fast radio bursts (FRBs) is unknown. Young magnetars born from gamma-ray bursts (GRBs) have been suggested to be a possible central engine of FRBs. We test such a hypothesis by systematically searching for GRB-FRB spatial associations from 110 FRBs and 1440 GRBs. We find that one FRB event, FRB 171209, discovered by the Parkes telescope is spatially coincident with a historical long-duration GRB 110715A at $z=0.82$. The afterglow of GRB 110715A is consistent with being powered by a millisecond magnetar. The extragalactic dispersion measure of FRB 171209 is in excess of that contributed by the intergalactic medium, which can be interpreted as being contributed by a young supernova remnant associated with the GRB. Overall, the significance of the association is $(2.28 - 2.55) σ$. If the association is indeed physical, our result suggests that the magnetars associated with long GRBs can be the progenitors of at least some FRBs.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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