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| Autores principales: | , , , |
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| Formato: | Preprint |
| Publicado: |
2024
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| Materias: | |
| Acceso en línea: | https://arxiv.org/abs/2402.17381 |
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| _version_ | 1866929257924526080 |
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| author | Gao, Bo Tang, Shao-Peng Yan, Jingzhi Fan, Yi-Zhong |
| author_facet | Gao, Bo Tang, Shao-Peng Yan, Jingzhi Fan, Yi-Zhong |
| contents | A hierarchical triple merger (HTM) constitutes a type of event in which two successive black hole (BH) mergers occur sequentially within the observational window of gravitational wave (GW) detectors, which has important role in testing general relativity and studying BH population. In this work, we conduct an analysis to determine the feasibility of identifying HTMs from a large GW event catalog using the third-generation ground-based GW detectors. By comparing the Bhattacharyya coefficient that measures the overlap between the posterior distributions of the remnant and progenitor BH parameters, we find that the overlap between the event pair can serve as a preliminary filter, which balances between computational demand and the probability of false alarms. Following this initial, time-efficient, yet less accurate screening, a subset of potential HTM candidates will be retained. These candidates will subsequently be subjected to a more precise, albeit time-intensive, method of joint parameter estimation for verification. Ultimately, this process will enable us to robustly identify HTMs. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2402_17381 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Prospects of Identifying Hierarchical Triple Mergers for the Third-generation Ground-based Detectors Gao, Bo Tang, Shao-Peng Yan, Jingzhi Fan, Yi-Zhong General Relativity and Quantum Cosmology A hierarchical triple merger (HTM) constitutes a type of event in which two successive black hole (BH) mergers occur sequentially within the observational window of gravitational wave (GW) detectors, which has important role in testing general relativity and studying BH population. In this work, we conduct an analysis to determine the feasibility of identifying HTMs from a large GW event catalog using the third-generation ground-based GW detectors. By comparing the Bhattacharyya coefficient that measures the overlap between the posterior distributions of the remnant and progenitor BH parameters, we find that the overlap between the event pair can serve as a preliminary filter, which balances between computational demand and the probability of false alarms. Following this initial, time-efficient, yet less accurate screening, a subset of potential HTM candidates will be retained. These candidates will subsequently be subjected to a more precise, albeit time-intensive, method of joint parameter estimation for verification. Ultimately, this process will enable us to robustly identify HTMs. |
| title | Prospects of Identifying Hierarchical Triple Mergers for the Third-generation Ground-based Detectors |
| topic | General Relativity and Quantum Cosmology |
| url | https://arxiv.org/abs/2402.17381 |