Memory in the Burst Occurrence of Repeating FRBs
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arXiv
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| Main Authors: | , , , , , , , , , , , , |
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| Format: | Preprint |
| Published: |
2023
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| _version_ | 1866910684160196608 |
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| author | Wang, Ping Song, Li-Ming Xiong, Shao-Lin Zhao, Xiao-Yun Wang, Jin Zhao, Shu-Min Xiao, Shuo Cai, Ce Xie, Sheng-Lun Xue, Wang-Chen Wang, Chen-Wei Wang, Yue Zhang, Wen-Long |
| author_facet | Wang, Ping Song, Li-Ming Xiong, Shao-Lin Zhao, Xiao-Yun Wang, Jin Zhao, Shu-Min Xiao, Shuo Cai, Ce Xie, Sheng-Lun Xue, Wang-Chen Wang, Chen-Wei Wang, Yue Zhang, Wen-Long |
| contents | Understanding the nature of repeating fast radio bursts (FRBs) is crucial to probe their underlying physics. In this work, we analyze the waiting time statistics between bursts of three repeating FRBs from four datasets. We find a universally pronounced dependency of the waiting times on the previous time interval (denoted as $λ_0$). We observe a temporal clustering where short waiting times tend to be followed by short ones, and long by long comparative to their mean value. This memory dependency is manifested in the conditional mean waiting time as well as in the conditional mean residual time to the next burst, both of which increase in direct proportion to $λ_0$. Consequently, the likelihood of experiencing a subsequent FRB burst within a given time window after the preceding burst is generally influenced by the burst history. We reveal that for the first time, these memory effects are present in the scale-invariant preconditioned waiting time distribution. We show that the memory effect provides a unified description of waiting times which may account for both the repeating FRBs and the apparent non-repeating FRBs (i.e. only observed one time). These results shed new light on the mechanism of FRBs. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2312_12978 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Memory in the Burst Occurrence of Repeating FRBs Wang, Ping Song, Li-Ming Xiong, Shao-Lin Zhao, Xiao-Yun Wang, Jin Zhao, Shu-Min Xiao, Shuo Cai, Ce Xie, Sheng-Lun Xue, Wang-Chen Wang, Chen-Wei Wang, Yue Zhang, Wen-Long High Energy Astrophysical Phenomena Understanding the nature of repeating fast radio bursts (FRBs) is crucial to probe their underlying physics. In this work, we analyze the waiting time statistics between bursts of three repeating FRBs from four datasets. We find a universally pronounced dependency of the waiting times on the previous time interval (denoted as $λ_0$). We observe a temporal clustering where short waiting times tend to be followed by short ones, and long by long comparative to their mean value. This memory dependency is manifested in the conditional mean waiting time as well as in the conditional mean residual time to the next burst, both of which increase in direct proportion to $λ_0$. Consequently, the likelihood of experiencing a subsequent FRB burst within a given time window after the preceding burst is generally influenced by the burst history. We reveal that for the first time, these memory effects are present in the scale-invariant preconditioned waiting time distribution. We show that the memory effect provides a unified description of waiting times which may account for both the repeating FRBs and the apparent non-repeating FRBs (i.e. only observed one time). These results shed new light on the mechanism of FRBs. |
| title | Memory in the Burst Occurrence of Repeating FRBs |
| topic | High Energy Astrophysical Phenomena |
| url | https://arxiv.org/abs/2312.12978 |