Dark I-Love-Q
Abstract For neutron stars, there exist universal relations insensitive to the equation of states, the so called I-Love-Q relations, which show the connections among the moment of inertia, tidal Love number and quadrupole moment. In this paper, we show that these relations also apply to dark stars,...
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
SpringerOpen
2025-02-01
|
| Series: | European Physical Journal C: Particles and Fields |
| Online Access: | https://doi.org/10.1140/epjc/s10052-025-13862-2 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1823861620144603136 |
|---|---|
| author | Jing-Yi Wu Wei Li Xin-Han Huang Kilar Zhang |
| author_facet | Jing-Yi Wu Wei Li Xin-Han Huang Kilar Zhang |
| author_sort | Jing-Yi Wu |
| collection | DOAJ |
| description | Abstract For neutron stars, there exist universal relations insensitive to the equation of states, the so called I-Love-Q relations, which show the connections among the moment of inertia, tidal Love number and quadrupole moment. In this paper, we show that these relations also apply to dark stars, bosonic or fermionic. The relations can be extended to higher ranges of the variables, clarifying the deviations for dark stars in the literature, as those curves all approximate the ones generated by a polytropic equation of state, when taking the low density (pressure) limit. Besides, we find that for equation of states with scaling symmetries, the I-Love-Q curves do not change when adjusting the scaling parameters. |
| format | Article |
| id | doaj-art-1993355d635349e2ab657e409591802a |
| institution | Kabale University |
| issn | 1434-6052 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | European Physical Journal C: Particles and Fields |
| spelling | doaj-art-1993355d635349e2ab657e409591802a2025-02-09T12:51:50ZengSpringerOpenEuropean Physical Journal C: Particles and Fields1434-60522025-02-018521910.1140/epjc/s10052-025-13862-2Dark I-Love-QJing-Yi Wu0Wei Li1Xin-Han Huang2Kilar Zhang3School of Astronomy and Space Science, University of Chinese Academy of Sciences (UCAS)Department of Physics and Institute for Quantum Science and Technology, Shanghai UniversityDepartment of Physics and Institute for Quantum Science and Technology, Shanghai UniversityDepartment of Physics and Institute for Quantum Science and Technology, Shanghai UniversityAbstract For neutron stars, there exist universal relations insensitive to the equation of states, the so called I-Love-Q relations, which show the connections among the moment of inertia, tidal Love number and quadrupole moment. In this paper, we show that these relations also apply to dark stars, bosonic or fermionic. The relations can be extended to higher ranges of the variables, clarifying the deviations for dark stars in the literature, as those curves all approximate the ones generated by a polytropic equation of state, when taking the low density (pressure) limit. Besides, we find that for equation of states with scaling symmetries, the I-Love-Q curves do not change when adjusting the scaling parameters.https://doi.org/10.1140/epjc/s10052-025-13862-2 |
| spellingShingle | Jing-Yi Wu Wei Li Xin-Han Huang Kilar Zhang Dark I-Love-Q European Physical Journal C: Particles and Fields |
| title | Dark I-Love-Q |
| title_full | Dark I-Love-Q |
| title_fullStr | Dark I-Love-Q |
| title_full_unstemmed | Dark I-Love-Q |
| title_short | Dark I-Love-Q |
| title_sort | dark i love q |
| url | https://doi.org/10.1140/epjc/s10052-025-13862-2 |
| work_keys_str_mv | AT jingyiwu darkiloveq AT weili darkiloveq AT xinhanhuang darkiloveq AT kilarzhang darkiloveq |