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arXiv · 2209.13943

One-off and Repeating Fast Radio Bursts: A Statistical Analysis

Hao-Yan Chen·Wei-Min Gu·Mouyuan Sun·Tuan Yi
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Abstract

According to the number of detected bursts, fast radio bursts (FRBs) can be classified into two categories, i.e., one-off FRBs and repeating ones. We make a statistical comparison of these two categories based on the first FRB catalog of the Canadian Hydrogen Intensity Mapping Experiment Fast Radio Burst Project. Using the Anderson-Darling, Kolmogrov-Smirnov, and Energy statistic tests, we find significant statistical differences ($p$-value $<$ 0.001) of the burst properties between the one-off FRBs and the repeating ones. More specifically, after controlling for distance, we find that the peak luminosities of one-off FRBs are, on average, higher than the repeating ones; the pulse temporal widths of repeating FRBs are, on average, longer than the one-off ones. The differences indicate that these two categories could have distinct physical origins. Moreover, we discuss the sub-populations of FRBs and provide statistical evidence to support the existence of sub-populations in one-off FRBs and in repeating ones.

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Hao-Yan Chen, Wei-Min Gu, Mouyuan Sun, Tuan Yi. 2022-09-28. One-off and Repeating Fast Radio Bursts: A Statistical Analysis. https://doi.org/10.3847/1538-4357%2Fac958a

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