Frequency shift of light in Kerr spacetime
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arXiv
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| Main Authors: | , , , |
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| Format: | Preprint |
| Published: |
2023
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| Subjects: | |
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| _version_ | 1866913625777635328 |
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| author | Jiang, Chunhua Yang, Bo He, Guansheng Lin, Wenbin |
| author_facet | Jiang, Chunhua Yang, Bo He, Guansheng Lin, Wenbin |
| contents | The frequency shift of light in the gravitational field generated by a rotating body is investigated. We consider the scenario in which both the light source and the observer are in motion. The frequency shift is calculated up to the second-order post-Minkowskian approximation via two different methods and the same result is achieved. The higher-order effects of the gravitational source's rotation on the frequency shift is obtained. Especially, when both the light source and the observer are located in the asymptotically flat region, an elegant formula is obtained, which can be easily used in the astronomical observations to determine the rotating gravitational source's mass and angular momentum. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2306_10129 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Frequency shift of light in Kerr spacetime Jiang, Chunhua Yang, Bo He, Guansheng Lin, Wenbin General Relativity and Quantum Cosmology The frequency shift of light in the gravitational field generated by a rotating body is investigated. We consider the scenario in which both the light source and the observer are in motion. The frequency shift is calculated up to the second-order post-Minkowskian approximation via two different methods and the same result is achieved. The higher-order effects of the gravitational source's rotation on the frequency shift is obtained. Especially, when both the light source and the observer are located in the asymptotically flat region, an elegant formula is obtained, which can be easily used in the astronomical observations to determine the rotating gravitational source's mass and angular momentum. |
| title | Frequency shift of light in Kerr spacetime |
| topic | General Relativity and Quantum Cosmology |
| url | https://arxiv.org/abs/2306.10129 |