Upper bound on the radius of the innermost photonsphere in the regular compact star spacetime
Fuente:
arXiv
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| Autori principali: | , |
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| Natura: | Preprint |
| Pubblicazione: |
2024
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| _version_ | 1866910342061228032 |
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| author | Liu, Guohua Peng, Yan |
| author_facet | Liu, Guohua Peng, Yan |
| contents | We study properties of the innermost photonsphere in the regular compact star background. We take the traceless energy-momentum tensor and dominant energy conditions. In the regular compact star background, we analytically obtain an upper bound on the radius of the innermost photonsphere as $r_γ^{in}\leqslant \frac{12}{5}M$, where $r_γ^{in}$ is the radius of the innermost photonsphere and $M$ is the total ADM mass of the asymptotically flat compact star spacetime. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2402_15517 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Upper bound on the radius of the innermost photonsphere in the regular compact star spacetime Liu, Guohua Peng, Yan General Relativity and Quantum Cosmology We study properties of the innermost photonsphere in the regular compact star background. We take the traceless energy-momentum tensor and dominant energy conditions. In the regular compact star background, we analytically obtain an upper bound on the radius of the innermost photonsphere as $r_γ^{in}\leqslant \frac{12}{5}M$, where $r_γ^{in}$ is the radius of the innermost photonsphere and $M$ is the total ADM mass of the asymptotically flat compact star spacetime. |
| title | Upper bound on the radius of the innermost photonsphere in the regular compact star spacetime |
| topic | General Relativity and Quantum Cosmology |
| url | https://arxiv.org/abs/2402.15517 |