The energy structure function of fast radio bursts supports a stochastic origin model
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arXiv
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| Format: | Preprint |
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2025
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| _version_ | 1866914197215903744 |
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| author | Chen, Yi-Nan Zhang, Yong-Kun Dai, Zi-Gao |
| author_facet | Chen, Yi-Nan Zhang, Yong-Kun Dai, Zi-Gao |
| contents | The origin of fast radio bursts (FRBs) has remained a mystery up to now. There are two kinds of process invoking neutron stars as an origin of FRBs, namely inner-driven starquakes and outer-driven collisions with interstellar objects (ISOs). The former origin should exhibit an earthquake-like statistical behavior while the latter should show a stochastic process. In this paper, we introduce a new statistical method by making use of the energy structure function of active repeating FRBs and earthquakes. We find that the energy structure function of FRBs exhibits a very different statistical behavior compared to that of earthquakes. On small time-interval scales, the energy of an earthquake show a tendency to decay with time-interval and the energy difference of a pair of events increases with time-interval. Such a behavior is not found in FRBs, whose energy function is very similar to those of a stochastic process. Our result shows that repeating FRBs may have an origin process differing from that of earthquakes, i.e., FRBs arise from a series of unrelated events such as collisions of a neutron star with ISOs. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2512_11283 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | The energy structure function of fast radio bursts supports a stochastic origin model Chen, Yi-Nan Zhang, Yong-Kun Dai, Zi-Gao High Energy Astrophysical Phenomena The origin of fast radio bursts (FRBs) has remained a mystery up to now. There are two kinds of process invoking neutron stars as an origin of FRBs, namely inner-driven starquakes and outer-driven collisions with interstellar objects (ISOs). The former origin should exhibit an earthquake-like statistical behavior while the latter should show a stochastic process. In this paper, we introduce a new statistical method by making use of the energy structure function of active repeating FRBs and earthquakes. We find that the energy structure function of FRBs exhibits a very different statistical behavior compared to that of earthquakes. On small time-interval scales, the energy of an earthquake show a tendency to decay with time-interval and the energy difference of a pair of events increases with time-interval. Such a behavior is not found in FRBs, whose energy function is very similar to those of a stochastic process. Our result shows that repeating FRBs may have an origin process differing from that of earthquakes, i.e., FRBs arise from a series of unrelated events such as collisions of a neutron star with ISOs. |
| title | The energy structure function of fast radio bursts supports a stochastic origin model |
| topic | High Energy Astrophysical Phenomena |
| url | https://arxiv.org/abs/2512.11283 |