Power-law Distribution and Scale-invariant Structure from the First CHIME/FRB Fast Radio Burst Catalog

被引：7
作者：
Wang, Zi-Han [1 ]
Sang, Yu [1 ,2 ]
Zhang, Xue [1 ,2 ]
机构：
[1] Yangzhou Univ, Coll Phys Sci & Technol, Ctr Gravitat & Cosmol, Yangzhou 225009, Peoples R China
[2] Shanghai Jiao Tong Univ, Shanghai Frontier Sci Res Ctr Gravitat Wave Detect, Sch Aeronaut & Astronaut, Shanghai 200240, Peoples R China
来源：
RESEARCH IN ASTRONOMY AND ASTROPHYSICS | 2023年 / 23卷 / 02期
基金：
中国国家自然科学基金;
关键词：
methods: statistical; radio continuum: galaxies; catalogs; SELF-ORGANIZED CRITICALITY; DISPERSION MEASURE; REPEATERS;
D O I：
10.1088/1674-4527/acaa91
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We study the statistical property of fast radio bursts (FRBs) based on a selected sample of 190 one-off FRBs in the first CHIME/FRB catalog. Three power law models are used in the analysis, and we find the cumulative distribution functions of energy can be well fitted by bent power law and thresholded power law models. The distribution functions of fluctuations of energy well follow the Tsallis q-Gaussian distribution. The q values in the Tsallis q-Gaussian distribution are constant with small fluctuations for different temporal scale intervals, indicating a scale-invariant structure of the bursts. The earthquakes and soft gamma repeaters show similar properties, which are consistent with the predictions of self-organized criticality systems.
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页数：5
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