تقرير
Impacts of dark matter on the $f$-mode oscillation of hyperon star
| العنوان: | Impacts of dark matter on the $f$-mode oscillation of hyperon star |
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| المؤلفون: | Das, H. C., Kumar, Ankit, Biswal, S. K., Patra, S. K. |
| المصدر: | Phys. Rev. D 104, 123006 (2021) |
| سنة النشر: | 2021 |
| المجموعة: | Astrophysics General Relativity and Quantum Cosmology Nuclear Theory |
| مصطلحات موضوعية: | Nuclear Theory, Astrophysics - High Energy Astrophysical Phenomena, General Relativity and Quantum Cosmology |
| الوصف: | We investigate the $f$-mode oscillation of the dark matter admixed hyperon star within the relativistic Cowling approximation. The macroscopic properties are calculated with the relativistic mean-field equation of states by assuming that the dark matter particles are inside the star. The $f$-mode oscillation frequencies (only for $l=2$) are calculated with four different neutron star equation of states. We also check the effects of hyperons/dark matter and hyperons with dark matter equation of states on the $f$-mode oscillations varying with different astrophysical quantities such as mass ($M$), radius ($R$), compactness ($M/R$), surface red-shift ($Z_s$), average density ($\bar{\rho}$), dimensionless tidal deformability ($\Lambda$) of the neutron star. Significant changes have been seen in the $f$-mode frequencies with and without hyperons/dark matter or hyperons+dark matter. Substantial correlations are observed between canonical frequencies and $\Lambda$ ($f_{1.4}-\Lambda_{1.4}$) and maximum frequencies and canonical $\Lambda$ ( $f_{max}-\Lambda_{1.4}$). Comment: 13 pages, 11 figures, 3 tables, Published in Physics. Rev. D |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1103/PhysRevD.104.123006 |
| URL الوصول: | http://arxiv.org/abs/2109.01851 |
| رقم الأكسشن: | edsarx.2109.01851 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1103/PhysRevD.104.123006 |
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