Star-Black Hole Interactions in Young Star Clusters
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arXiv
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| Hauptverfasser: | , , , |
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| Format: | Preprint |
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2025
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| _version_ | 1866918141528899584 |
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| author | Rastello, Sara Iorio, Giuliano Gieles, Mark Wang, Long |
| author_facet | Rastello, Sara Iorio, Giuliano Gieles, Mark Wang, Long |
| contents | Close encounters between stars and black holes can trigger micro-tidal disruption events (micro-TDEs) in dense young star clusters (YSCs). Using direct N-body simulations with PETAR, we found that most micro-TDEs arise from few-body multiple encounters. The inferred rate is approximately 350-450 Gpc$^{-3}$ yr$^{-1}$. Micro-TDEs could be detected both by upcoming surveys such as LSST, expected to observe roughly 10-100 events per year, and by their gravitational-wave (GW) signals peaking in the deci-Hertz band, detectable with future instruments such as LGWA and DECIGO. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2509_12318 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Star-Black Hole Interactions in Young Star Clusters Rastello, Sara Iorio, Giuliano Gieles, Mark Wang, Long High Energy Astrophysical Phenomena Astrophysics of Galaxies Solar and Stellar Astrophysics Close encounters between stars and black holes can trigger micro-tidal disruption events (micro-TDEs) in dense young star clusters (YSCs). Using direct N-body simulations with PETAR, we found that most micro-TDEs arise from few-body multiple encounters. The inferred rate is approximately 350-450 Gpc$^{-3}$ yr$^{-1}$. Micro-TDEs could be detected both by upcoming surveys such as LSST, expected to observe roughly 10-100 events per year, and by their gravitational-wave (GW) signals peaking in the deci-Hertz band, detectable with future instruments such as LGWA and DECIGO. |
| title | Star-Black Hole Interactions in Young Star Clusters |
| topic | High Energy Astrophysical Phenomena Astrophysics of Galaxies Solar and Stellar Astrophysics |
| url | https://arxiv.org/abs/2509.12318 |