Search for hyperbolic encounters of compact objects in the third LIGO-Virgo-KAGRA observing run
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arXiv
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| Autores principales: | , , , , , , , , |
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| Formato: | Preprint |
| Publicado: |
2023
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| _version_ | 1866911770642219008 |
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| author | Bini, Sophie Tiwari, Shubhanshu Xu, Yumeng Smith, Leigh Ebersold, Michael Principe, Giacomo Haney, Maria Jetzer, Philippe Prodi, Giovanni A. |
| author_facet | Bini, Sophie Tiwari, Shubhanshu Xu, Yumeng Smith, Leigh Ebersold, Michael Principe, Giacomo Haney, Maria Jetzer, Philippe Prodi, Giovanni A. |
| contents | Gravitational-wave (GW) observations provide unique information about compact objects. As detectors sensitivity increases, new astrophysical sources of GW could emerge. Close hyperbolic encounters are one such source class: scattering of stellar mass compact objects is expected to manifest as GW burst signals in the frequency band of current detectors. We present the search for GW from hyperbolic encounters in the second half of the third Advanced LIGO-Virgo observing run (O3b). We perform a model-informed search with machine-learning enhanced Coherent WaveBurst algorithm. No significant event has been identified in addition to known detections of compact binary coalescences. We inject in the O3b data non-spinning third Post-Newtonian order accurate hyperbolic encounter model with component masses between [2, 100] $M_{\odot}$, impact parameter in [60, 100] ${GM}/{c^2}$ and eccentricity in [1.05, 1.6]. We further discuss the properties of the simulation recovered. For the first time, we report the sensitivity volume achieved for such sources, which for O3b data reaches up to 3.9$\pm 1.4 \times 10^5$ Mpc$^3$year for compact objects with masses between [20, 40] $M_{\odot}$, corresponding to a rate density upper limit of 0.589$\pm$0.094 $\times10^{-5}$Mpc$^{-3}$year$^{-1}$. Finally, we present projected sensitive volume for the next observing runs of current detectors, namely O4 and O5. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2311_06630 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Search for hyperbolic encounters of compact objects in the third LIGO-Virgo-KAGRA observing run Bini, Sophie Tiwari, Shubhanshu Xu, Yumeng Smith, Leigh Ebersold, Michael Principe, Giacomo Haney, Maria Jetzer, Philippe Prodi, Giovanni A. General Relativity and Quantum Cosmology Gravitational-wave (GW) observations provide unique information about compact objects. As detectors sensitivity increases, new astrophysical sources of GW could emerge. Close hyperbolic encounters are one such source class: scattering of stellar mass compact objects is expected to manifest as GW burst signals in the frequency band of current detectors. We present the search for GW from hyperbolic encounters in the second half of the third Advanced LIGO-Virgo observing run (O3b). We perform a model-informed search with machine-learning enhanced Coherent WaveBurst algorithm. No significant event has been identified in addition to known detections of compact binary coalescences. We inject in the O3b data non-spinning third Post-Newtonian order accurate hyperbolic encounter model with component masses between [2, 100] $M_{\odot}$, impact parameter in [60, 100] ${GM}/{c^2}$ and eccentricity in [1.05, 1.6]. We further discuss the properties of the simulation recovered. For the first time, we report the sensitivity volume achieved for such sources, which for O3b data reaches up to 3.9$\pm 1.4 \times 10^5$ Mpc$^3$year for compact objects with masses between [20, 40] $M_{\odot}$, corresponding to a rate density upper limit of 0.589$\pm$0.094 $\times10^{-5}$Mpc$^{-3}$year$^{-1}$. Finally, we present projected sensitive volume for the next observing runs of current detectors, namely O4 and O5. |
| title | Search for hyperbolic encounters of compact objects in the third LIGO-Virgo-KAGRA observing run |
| topic | General Relativity and Quantum Cosmology |
| url | https://arxiv.org/abs/2311.06630 |