Universal relations for quasinormal modes of neutron stars in $R^2$ gravity
| Autor: | Blázquez-Salcedo, J. L., González-Romero, L. M., Khoo, F. S., Kunz, J., Preut, V. |
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| Rok vydání: | 2022 |
| Předmět: | |
| Zdroj: | Phys. Rev. D 106, 044007 (2022) |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1103/PhysRevD.106.044007 |
| Popis: | We construct quasinormal modes for neutron stars in $R^2$ gravity in the Einstein frame, considering scalar masses in the sub-neV range. In particular, we investigate the fundamental quadrupole fluid f-modes and the dipole fluid F-modes. Employing six equations of state covering matter content with nucleons, hyperons, and quarks, we then propose universal relations for the quadrupole f-modes and dipole F-modes. The dipole F-modes are ultra-long lived and, for the lower scalar masses, their frequencies are inversely proportional to the corresponding Compton wavelength. Comment: 25 pages, 23 figures; Some figures updated |
| Databáze: | arXiv |
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