Masking equation of state effects in binary neutron star mergers
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arXiv
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| Autores principales: | , , , |
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| Formato: | Preprint |
| Publicado: |
2024
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| _version_ | 1866912102428442624 |
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| author | Tsokaros, Antonios Bamber, Jamie Ruiz, Milton Shapiro, Stuart L. |
| author_facet | Tsokaros, Antonios Bamber, Jamie Ruiz, Milton Shapiro, Stuart L. |
| contents | Recent nonmagnetized studies of binary neutron star mergers have indicated the possibility of identifying equation of state features, such as a phase transition or a quark-hadron crossover, based on the frequency shift of the main peak in the postmerger gravitational wave spectrum. By performing a series of general relativistic, magnetohydrodynamic simulations we show that similar frequency shifts can be obtained due to the effect of the magnetic field. The existing degeneracy can either mask or nullify a shift due to a specific equation of state feature, and therefore the interpretation of observational data is more complicated than previously thought, requiring a more complete treatment that would necessarily include the neutron star's magnetic field. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2411_00939 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Masking equation of state effects in binary neutron star mergers Tsokaros, Antonios Bamber, Jamie Ruiz, Milton Shapiro, Stuart L. General Relativity and Quantum Cosmology High Energy Astrophysical Phenomena Nuclear Theory Recent nonmagnetized studies of binary neutron star mergers have indicated the possibility of identifying equation of state features, such as a phase transition or a quark-hadron crossover, based on the frequency shift of the main peak in the postmerger gravitational wave spectrum. By performing a series of general relativistic, magnetohydrodynamic simulations we show that similar frequency shifts can be obtained due to the effect of the magnetic field. The existing degeneracy can either mask or nullify a shift due to a specific equation of state feature, and therefore the interpretation of observational data is more complicated than previously thought, requiring a more complete treatment that would necessarily include the neutron star's magnetic field. |
| title | Masking equation of state effects in binary neutron star mergers |
| topic | General Relativity and Quantum Cosmology High Energy Astrophysical Phenomena Nuclear Theory |
| url | https://arxiv.org/abs/2411.00939 |