Shadows for Kerr-Sen-Taub-NUT black holes with Manko-Ruiz parameter
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arXiv
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| Format: | Preprint |
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2025
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| _version_ | 1866908316642312192 |
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| author | Siahaan, Haryanto M. |
| author_facet | Siahaan, Haryanto M. |
| contents | In this paper, we explore the Kerr-Sen-Taub-NUT spacetime with the inclusion of the Manko-Ruiz parameter. We demonstrate the separability of the Hamilton-Jacobi equation for a classical test particle in this spacetime and, using the null Hamilton-Jacobi equation, derive a set of equations that define the black hole shadow boundary. Our analysis reveals that the shadow shape is influenced by variations in the spacetime parameters, including the Hassan-Sen transformation parameter, which corresponds to the black hole electric charge, as well as the NUT charge and rotational parameter. Additionally, we highlight the impact of the Manko-Ruiz parameter on the shadow deformation, offering new insights into its role in shaping the Kerr-Sen-Taub-NUT spacetime geometry. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2504_09165 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Shadows for Kerr-Sen-Taub-NUT black holes with Manko-Ruiz parameter Siahaan, Haryanto M. General Relativity and Quantum Cosmology In this paper, we explore the Kerr-Sen-Taub-NUT spacetime with the inclusion of the Manko-Ruiz parameter. We demonstrate the separability of the Hamilton-Jacobi equation for a classical test particle in this spacetime and, using the null Hamilton-Jacobi equation, derive a set of equations that define the black hole shadow boundary. Our analysis reveals that the shadow shape is influenced by variations in the spacetime parameters, including the Hassan-Sen transformation parameter, which corresponds to the black hole electric charge, as well as the NUT charge and rotational parameter. Additionally, we highlight the impact of the Manko-Ruiz parameter on the shadow deformation, offering new insights into its role in shaping the Kerr-Sen-Taub-NUT spacetime geometry. |
| title | Shadows for Kerr-Sen-Taub-NUT black holes with Manko-Ruiz parameter |
| topic | General Relativity and Quantum Cosmology |
| url | https://arxiv.org/abs/2504.09165 |