Thermal, topological, and scattering effects of an AdS charged black hole with an antisymmetric tensor background
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arXiv
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| Autores principales: | , , , , |
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| Formato: | Preprint |
| Publicado: |
2024
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| _version_ | 1866913459551076352 |
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| author | Chen, H. Zhang, M. Y. Filho, A. A. Araújo Hosseinifar, F. Hassanabadi, H. |
| author_facet | Chen, H. Zhang, M. Y. Filho, A. A. Araújo Hosseinifar, F. Hassanabadi, H. |
| contents | In this study, we explore a spherically symmetric charged black hole with a cosmological constant under the influence of a Kalb--Ramond field background. We compute the photon sphere and shadow radii, validating our findings using observational data from the Event Horizon Telescope (EHT), with a particular emphasis on the shadow images of Sagittarius $A^{*}$. Furthermore, we investigate the \textit{greybody} factors, emission rate, and partial absorption cross section. It is shown that the Lorentz-violating parameter \(\bar{l}\) has an important effect on the absorption cross section. Our analysis also includes an examination of the topological charge, temperature-dependent topology, and generalized free energy. In particular, we regard the AdS charged black hole with an antisymmetric tensor background as a topological defect in the thermodynamic space, then the system has the same topological classification to the charged RN-AdS black hole. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2408_03090 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Thermal, topological, and scattering effects of an AdS charged black hole with an antisymmetric tensor background Chen, H. Zhang, M. Y. Filho, A. A. Araújo Hosseinifar, F. Hassanabadi, H. General Relativity and Quantum Cosmology In this study, we explore a spherically symmetric charged black hole with a cosmological constant under the influence of a Kalb--Ramond field background. We compute the photon sphere and shadow radii, validating our findings using observational data from the Event Horizon Telescope (EHT), with a particular emphasis on the shadow images of Sagittarius $A^{*}$. Furthermore, we investigate the \textit{greybody} factors, emission rate, and partial absorption cross section. It is shown that the Lorentz-violating parameter \(\bar{l}\) has an important effect on the absorption cross section. Our analysis also includes an examination of the topological charge, temperature-dependent topology, and generalized free energy. In particular, we regard the AdS charged black hole with an antisymmetric tensor background as a topological defect in the thermodynamic space, then the system has the same topological classification to the charged RN-AdS black hole. |
| title | Thermal, topological, and scattering effects of an AdS charged black hole with an antisymmetric tensor background |
| topic | General Relativity and Quantum Cosmology |
| url | https://arxiv.org/abs/2408.03090 |