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| Auteurs principaux: | , , , , |
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| Format: | Preprint |
| Publié: |
2025
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| Sujets: | |
| Accès en ligne: | https://arxiv.org/abs/2506.11581 |
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| _version_ | 1866912428334252032 |
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| author | Boshkayev, K. Konysbayev, T. Kurmanov, Ye. Muccino, M. Quevedo, H. |
| author_facet | Boshkayev, K. Konysbayev, T. Kurmanov, Ye. Muccino, M. Quevedo, H. |
| contents | We numerically analyze quasiperiodic oscillations (QPOs) using a well-established spacetime model with neutron star sources. Within the framework of general relativity, we present expressions for the fundamental frequencies of test particles in the gravitational field of a slowly rotating and slightly deformed compact object defined by the Hartle-Thorne (HT) metric. Using the Relativistic Precession Model (RPM) formulated by Stella and Morinsk, we examine quasiperiodic oscillation data from eight neutron stars in low-mass X-ray binary systems. Employing Markov Chain Monte Carlo analyses with the Metropolis-Hastings algorithm, we estimate 1-$σ$ and 2-$σ$ error bars. Finally, we compare our results with predictions from the Schwarzschild, Lense-Thirring, and Kerr metrics, demonstrating that three of the eight sources can be well explained within the Hartle-Thorne model. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2506_11581 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Numerical analysis of quasiperiodic oscillations in the Hartle-Thorne spacetime Boshkayev, K. Konysbayev, T. Kurmanov, Ye. Muccino, M. Quevedo, H. High Energy Astrophysical Phenomena General Relativity and Quantum Cosmology We numerically analyze quasiperiodic oscillations (QPOs) using a well-established spacetime model with neutron star sources. Within the framework of general relativity, we present expressions for the fundamental frequencies of test particles in the gravitational field of a slowly rotating and slightly deformed compact object defined by the Hartle-Thorne (HT) metric. Using the Relativistic Precession Model (RPM) formulated by Stella and Morinsk, we examine quasiperiodic oscillation data from eight neutron stars in low-mass X-ray binary systems. Employing Markov Chain Monte Carlo analyses with the Metropolis-Hastings algorithm, we estimate 1-$σ$ and 2-$σ$ error bars. Finally, we compare our results with predictions from the Schwarzschild, Lense-Thirring, and Kerr metrics, demonstrating that three of the eight sources can be well explained within the Hartle-Thorne model. |
| title | Numerical analysis of quasiperiodic oscillations in the Hartle-Thorne spacetime |
| topic | High Energy Astrophysical Phenomena General Relativity and Quantum Cosmology |
| url | https://arxiv.org/abs/2506.11581 |