Detectability of Finite-Temperature Effects From Neutron Star Mergers with Next-Generation Gravitational Wave Detectors
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arXiv
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| Auteurs principaux: | , |
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| Format: | Preprint |
| Publié: |
2023
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| _version_ | 1866929404809052160 |
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| author | Raithel, Carolyn A. Paschalidis, Vasileios |
| author_facet | Raithel, Carolyn A. Paschalidis, Vasileios |
| contents | Observations of the high-frequency gravitational waves (GWs) emitted by the hot and massive remnant of a binary neutron star merger will provide new probes of the dense-matter equation of state (EoS). We show that current uncertainties in the thermal physics can cause the emergent GW spectum to differ by a degree comparable to changing the cold EoS by $\pm\sim120$ m in the characteristic radius of a neutron star. Unless a very close binary neutron star merger takes place, these effects are unlikely to be measurable with current GW detectors. However, with proposed next-generation detectors such as Cosmic Explorer or Einstein Telescope, the effects can be distinguished for events at distances of up to ~80-200 Mpc, if the cold EoS is sufficiently well constrained. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2312_14046 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Detectability of Finite-Temperature Effects From Neutron Star Mergers with Next-Generation Gravitational Wave Detectors Raithel, Carolyn A. Paschalidis, Vasileios High Energy Astrophysical Phenomena General Relativity and Quantum Cosmology Observations of the high-frequency gravitational waves (GWs) emitted by the hot and massive remnant of a binary neutron star merger will provide new probes of the dense-matter equation of state (EoS). We show that current uncertainties in the thermal physics can cause the emergent GW spectum to differ by a degree comparable to changing the cold EoS by $\pm\sim120$ m in the characteristic radius of a neutron star. Unless a very close binary neutron star merger takes place, these effects are unlikely to be measurable with current GW detectors. However, with proposed next-generation detectors such as Cosmic Explorer or Einstein Telescope, the effects can be distinguished for events at distances of up to ~80-200 Mpc, if the cold EoS is sufficiently well constrained. |
| title | Detectability of Finite-Temperature Effects From Neutron Star Mergers with Next-Generation Gravitational Wave Detectors |
| topic | High Energy Astrophysical Phenomena General Relativity and Quantum Cosmology |
| url | https://arxiv.org/abs/2312.14046 |