$f$-mode Oscillations for Hyperons and H-dibaryons in Neutron Stars
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arXiv
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| Autori principali: | , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2025
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| _version_ | 1866916023552180224 |
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| author | Maiti, Rajesh Leong, Jesper Chatterjee, Debarati Thomas, Anthony W. |
| author_facet | Maiti, Rajesh Leong, Jesper Chatterjee, Debarati Thomas, Anthony W. |
| contents | The fundamental ($f$-mode) oscillations of neutron stars are studied within the quark meson coupling model, a relativistic Hartree-Fock theory of dense nuclear matter, which takes into account the self-consistent modification of the valence quark structure of the bound baryons in the associated strong Lorentz scalar mean fields. For the first time, hyperons and H-dibaryons are included, along with the effects of potential additional short-range repulsion within this scheme, and their influence on $f$-modes is investigated. Universal relations are studied within the relativistic Cowling approximation and compared against those in the existing literature for potential applications in gravitational wave asteroseismology. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2508_15912 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | $f$-mode Oscillations for Hyperons and H-dibaryons in Neutron Stars Maiti, Rajesh Leong, Jesper Chatterjee, Debarati Thomas, Anthony W. High Energy Astrophysical Phenomena Nuclear Theory The fundamental ($f$-mode) oscillations of neutron stars are studied within the quark meson coupling model, a relativistic Hartree-Fock theory of dense nuclear matter, which takes into account the self-consistent modification of the valence quark structure of the bound baryons in the associated strong Lorentz scalar mean fields. For the first time, hyperons and H-dibaryons are included, along with the effects of potential additional short-range repulsion within this scheme, and their influence on $f$-modes is investigated. Universal relations are studied within the relativistic Cowling approximation and compared against those in the existing literature for potential applications in gravitational wave asteroseismology. |
| title | $f$-mode Oscillations for Hyperons and H-dibaryons in Neutron Stars |
| topic | High Energy Astrophysical Phenomena Nuclear Theory |
| url | https://arxiv.org/abs/2508.15912 |