Statistical and Temporal Analysis of Multi-component Burst-clusters from the Repeating FRB 20190520B
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arXiv
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| Autori principali: | , , , , , , , , , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2025
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| _version_ | 1866915652990664704 |
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| author | Zhang, Jia-heng Niu, Chen-Hui Zhu, Yu-hao Li, Di Wang, Yu Wang, Wei-yang Feng, Yi Li, Xin-ming Niu, Jia-rui Wang, Pei Yu, Yun-wei Zhang, Yong-kun Zheng, Xiao-ping |
| author_facet | Zhang, Jia-heng Niu, Chen-Hui Zhu, Yu-hao Li, Di Wang, Yu Wang, Wei-yang Feng, Yi Li, Xin-ming Niu, Jia-rui Wang, Pei Yu, Yun-wei Zhang, Yong-kun Zheng, Xiao-ping |
| contents | Fast Radio Bursts (FRBs) are bright, millisecond-duration extragalactic radio transients that probe extreme astrophysical environments. Many FRBs exhibit multi-component structures, which encode information about their emission mechanisms or progenitor systems and thus provide important clues to their origins. In this work, we systematically analyze the burst morphology of FRB 20190520B and compare component distributions across four active FRBs observed with FAST: FRB 20121102A, FRB 20190520B, FRB 20201124A, and FRB 20240114A. We find that multi-component burst-clusters show spectral properties similar to single-peak bursts, and no periodicity is detected in their temporal behavior. The component-count distributions follow a power law, revealing scale-free behavior consistent with self-organized criticality (SOC) processes. Multi-component clusters account for 12-30% of all detected bursts, regardless of source activity, providing new insights into burst-to-burst variability and the physical processes driving FRB emission. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2512_03591 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Statistical and Temporal Analysis of Multi-component Burst-clusters from the Repeating FRB 20190520B Zhang, Jia-heng Niu, Chen-Hui Zhu, Yu-hao Li, Di Wang, Yu Wang, Wei-yang Feng, Yi Li, Xin-ming Niu, Jia-rui Wang, Pei Yu, Yun-wei Zhang, Yong-kun Zheng, Xiao-ping High Energy Astrophysical Phenomena Fast Radio Bursts (FRBs) are bright, millisecond-duration extragalactic radio transients that probe extreme astrophysical environments. Many FRBs exhibit multi-component structures, which encode information about their emission mechanisms or progenitor systems and thus provide important clues to their origins. In this work, we systematically analyze the burst morphology of FRB 20190520B and compare component distributions across four active FRBs observed with FAST: FRB 20121102A, FRB 20190520B, FRB 20201124A, and FRB 20240114A. We find that multi-component burst-clusters show spectral properties similar to single-peak bursts, and no periodicity is detected in their temporal behavior. The component-count distributions follow a power law, revealing scale-free behavior consistent with self-organized criticality (SOC) processes. Multi-component clusters account for 12-30% of all detected bursts, regardless of source activity, providing new insights into burst-to-burst variability and the physical processes driving FRB emission. |
| title | Statistical and Temporal Analysis of Multi-component Burst-clusters from the Repeating FRB 20190520B |
| topic | High Energy Astrophysical Phenomena |
| url | https://arxiv.org/abs/2512.03591 |