标签:FRB non DME 重复 FRBs -- repeating 统计
重复和非重复的FRB的统计比较
arXiv:2206.13871 [pdf, other]The Statistical Similarity of Repeating and Non-Repeating Fast Radio BurstsKongjun Zhang, Longbiao Li, Zhibin Zhang, Qinmei Li, Juanjuan Luo, Min JiangComments: 29 pages,5 figures,published to UniverseJournal-ref: Universe 2022, Volume 8, Issue 7, 355Subjects: High Energy Astrophysical Phenomena (astro-ph.HE)In this paper, we present a sample of 21 repeating fast radio bursts (FRBs) detected by different radio instruments before September 2021. Using the Anderson--Darling test, we compared the distributions of extra-Galactic dispersion measure (DME) of non-repeating FRBs, repeating FRBs and all FRBs. It was found that the DME values of three sub-samples are log-normally distributed. The DME of repeaters and non-repeaters were drawn from a different distribution on basis of the Mann--Whitney--Wilcoxon test. In addition, assuming that the non-repeating FRBs identified currently may be potentially repeators, i.e., the repeating FRBs to be universal and representative, one can utilize the averaged fluence of repeating FRBs as an indication from which to derive an apparent intensity distribution function (IDF) with a power-law index of a1= 1.10±0.14 (a2= 1.01±0.16, the observed fluence as a statistical variant), which is in good agreement with the previous IDF of 16 non-repeating FRBs found by Li et al. Based on the above statistics of repeating and non-repeating FRBs, we propose that both types of FRBs may have different cosmological origins, spatial distributions and circum-burst environments. Interestingly, the differential luminosity distributions of repeating and non-repeating FRBs can also be well described by a broken power-law function with the same power-law index of −1.4.
来源: https://arxiv.org/list/astro-ph/newDM分布上不一样
对重复暴还找到了一个关系
两种暴居然有相似的光度函数.
收集了很多的数据
重复暴的
非重复的, 有几百个.
标签:FRB,non,DME,重复,FRBs,--,repeating,统计
来源: https://www.cnblogs.com/zouastro/p/16422359.html
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