Small Near-Earth Objects in the Taurid Resonant Swarm
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arXiv
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| Autori principali: | , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2025
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| _version_ | 1866908561691377664 |
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| author | Ye, Quanzhi Li, Jasmine Vida, Denis Clark, David L. Bellm, Eric C. |
| author_facet | Ye, Quanzhi Li, Jasmine Vida, Denis Clark, David L. Bellm, Eric C. |
| contents | The Taurid Resonant Swarm (TRS) within the Taurid Complex hosts dynamically-concentrated debris in a 7:2 mean-motion resonance with Jupiter. Fireball observations have confirmed that the TRS is rich in sub-meter-sized particles, but whether this enhancement extends to larger, asteroid-sized objects remains unclear. Here we reanalyze the data obtained by a Zwicky Transient Facility (ZTF) campaign during the 2022 TRS encounter, and find that the TRS may host up to $\sim10^2$ Tunguska-sized objects and up to $\sim10^3$ Chelyabinsk-sized objects, the latter of which agrees the estimate derived from bolide records. This translates to an impact frequency of less than once every 4 million years. However, we caution that these numbers are based on the unverified assumption that the orbital distribution of the TRS asteroids follows that of fireball-sized meteoroids. Future wide-field facilities, such as the Vera C. Rubin Observatory, could take advantage of TRS's close approaches in the 2020-30s and validate the constraints of the asteroid-sized objects in the TRS. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2509_22602 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Small Near-Earth Objects in the Taurid Resonant Swarm Ye, Quanzhi Li, Jasmine Vida, Denis Clark, David L. Bellm, Eric C. Earth and Planetary Astrophysics The Taurid Resonant Swarm (TRS) within the Taurid Complex hosts dynamically-concentrated debris in a 7:2 mean-motion resonance with Jupiter. Fireball observations have confirmed that the TRS is rich in sub-meter-sized particles, but whether this enhancement extends to larger, asteroid-sized objects remains unclear. Here we reanalyze the data obtained by a Zwicky Transient Facility (ZTF) campaign during the 2022 TRS encounter, and find that the TRS may host up to $\sim10^2$ Tunguska-sized objects and up to $\sim10^3$ Chelyabinsk-sized objects, the latter of which agrees the estimate derived from bolide records. This translates to an impact frequency of less than once every 4 million years. However, we caution that these numbers are based on the unverified assumption that the orbital distribution of the TRS asteroids follows that of fireball-sized meteoroids. Future wide-field facilities, such as the Vera C. Rubin Observatory, could take advantage of TRS's close approaches in the 2020-30s and validate the constraints of the asteroid-sized objects in the TRS. |
| title | Small Near-Earth Objects in the Taurid Resonant Swarm |
| topic | Earth and Planetary Astrophysics |
| url | https://arxiv.org/abs/2509.22602 |