论文标题

一个人口可以说明快速无线电突发中的判别特性吗?

Can a Single Population Account for the Discriminant Properties in Fast Radio Bursts?

论文作者

Zhong, Shu-Qing, Xie, Wen-Jin, Deng, Can-Min, Li, Long, Dai, Zi-Gao, Zhang, Hai-Ming

论文摘要

为了探究这个问题,我们使用第一个加拿大氢强度映射实验快速无线电爆发(Chime/FRB)目录进行统计分析,并确定重复和非重复的FRB之间的一些判别特性,例如重复,持续时间,持续时间,持续时间,带宽,光谱指数,峰值,峰值和潜在的峰值频率。如果重复和非重复的FRB属于一个人群,则可以通过Connor等人的光束发射引起的选择效应来解释其重复率和持续时间的分布区分。 (2020)。但是,我们获得了光谱指数的分布区别,并且可能无法通过在相干曲率辐射或同步加速器maser发射的框架内的光束发射来解释峰值频率。这表明可能有两个人群。我们进一步讨论了所需两个人群的三种可能的情况。

To probe this question, we perform a statistical analysis using the first Canadian Hydrogen Intensity Mapping Experiment Fast Radio Burst (CHIME/FRB) catalog and identify a few discriminant properties between repeating and non-repeating FRBs such as the repetition rate, duration, bandwidth, spectral index, peak luminosity, and potential peak frequency. If repeating and non-repeating FRBs belong to one population, their distribution distinctions for the repetition rate and duration can be explained by the selection effect due to the beamed emission as in Connor et al. (2020). However, we obtain that the distribution distinctions for the spectral index and potentially the peak frequency cannot be explained by the beamed emission within the framework of either the coherent curvature radiation or synchrotron maser emission. This indicates that there could be two populations. We further discuss three possible scenarios for the required two populations.

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