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| Natura: | Preprint |
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2024
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| Accesso online: | https://arxiv.org/abs/2403.11392 |
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| _version_ | 1866929556143734784 |
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| author | Grace, Benjamin Wette, Karl Scott, Susan |
| author_facet | Grace, Benjamin Wette, Karl Scott, Susan |
| contents | We present the results of two searches for gravitational waves from the post-merger remnants of the binary neutron star coalescence events GW170817 and GW190425. The searches are fully coherent over 1800~s of data from the 2nd (for GW170817) and 3rd (for GW190425) observing runs of the LIGO and Virgo observatories. The searches compute the matched filter $\mathcal{F}$-statistic, and use a piecewise model of the rapidly changing frequency evolution appropriate for young neutron stars. No detection is claimed. The peak root-sum-squared strain upper limit at 50\% detection probability ($h_{\text{rss}}^{50\%})$ of both searches occurs at 1700~Hz and is estimated at $1.64 \times 10^{-22}~\text{Hz}^{-1/2}$ for GW170817, and $1.0 \times 10^{-22}~\text{Hz}^{-1/2}$ for GW190425. This is the first gravitational wave search for a neutron star remnant of GW190425. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2403_11392 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Gravitational Wave Searches for Post-Merger Remnants of GW170817 and GW190425 Grace, Benjamin Wette, Karl Scott, Susan General Relativity and Quantum Cosmology We present the results of two searches for gravitational waves from the post-merger remnants of the binary neutron star coalescence events GW170817 and GW190425. The searches are fully coherent over 1800~s of data from the 2nd (for GW170817) and 3rd (for GW190425) observing runs of the LIGO and Virgo observatories. The searches compute the matched filter $\mathcal{F}$-statistic, and use a piecewise model of the rapidly changing frequency evolution appropriate for young neutron stars. No detection is claimed. The peak root-sum-squared strain upper limit at 50\% detection probability ($h_{\text{rss}}^{50\%})$ of both searches occurs at 1700~Hz and is estimated at $1.64 \times 10^{-22}~\text{Hz}^{-1/2}$ for GW170817, and $1.0 \times 10^{-22}~\text{Hz}^{-1/2}$ for GW190425. This is the first gravitational wave search for a neutron star remnant of GW190425. |
| title | Gravitational Wave Searches for Post-Merger Remnants of GW170817 and GW190425 |
| topic | General Relativity and Quantum Cosmology |
| url | https://arxiv.org/abs/2403.11392 |