Ergosphere, Photon Region Structure, and the Shadow of a Rotating Charged Weyl Black Hole
In this paper, we explore the photon region and the shadow of the rotating counterpart of a static charged Weyl black hole, which has been previously discussed according to null and time-like geodesics. The rotating black hole shows strong sensitivity to the electric charge and the spin parameter, a...
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| Format: | Article |
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MDPI AG
2021-06-01
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| Series: | Galaxies |
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| Online Access: | https://www.mdpi.com/2075-4434/9/2/43 |
| _version_ | 1797529692171927552 |
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| author | Mohsen Fathi Marco Olivares José R. Villanueva |
| author_facet | Mohsen Fathi Marco Olivares José R. Villanueva |
| author_sort | Mohsen Fathi |
| collection | DOAJ |
| description | In this paper, we explore the photon region and the shadow of the rotating counterpart of a static charged Weyl black hole, which has been previously discussed according to null and time-like geodesics. The rotating black hole shows strong sensitivity to the electric charge and the spin parameter, and its shadow changes from being oblate to being sharp by increasing in the spin parameter. Comparing the calculated vertical angular diameter of the shadow with that of M87*, we found that the latter may possess about <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msup><mn>10</mn><mn>36</mn></msup></semantics></math></inline-formula> protons as its source of electric charge, if it is a rotating charged Weyl black hole. A complete derivation of the ergosphere and the static limit is also presented. |
| first_indexed | 2024-03-10T10:18:20Z |
| format | Article |
| id | doaj.art-393072fcecda4150a4214dc6f2cd163a |
| institution | Directory Open Access Journal |
| issn | 2075-4434 |
| language | English |
| last_indexed | 2024-03-10T10:18:20Z |
| publishDate | 2021-06-01 |
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| series | Galaxies |
| spelling | doaj.art-393072fcecda4150a4214dc6f2cd163a2023-11-22T00:39:06ZengMDPI AGGalaxies2075-44342021-06-01924310.3390/galaxies9020043Ergosphere, Photon Region Structure, and the Shadow of a Rotating Charged Weyl Black HoleMohsen Fathi0Marco Olivares1José R. Villanueva2Instituto de Física y Astronomía, Universidad de Valparaíso, Avenida Gran Bretaña 1111, Valparaíso 2340000, ChileFacultad de Ingeniería y Ciencias, Universidad Diego Portales, Avenida Ejército Libertador 441, Casilla 298-V, Santiago 8370109, ChileInstituto de Física y Astronomía, Universidad de Valparaíso, Avenida Gran Bretaña 1111, Valparaíso 2340000, ChileIn this paper, we explore the photon region and the shadow of the rotating counterpart of a static charged Weyl black hole, which has been previously discussed according to null and time-like geodesics. The rotating black hole shows strong sensitivity to the electric charge and the spin parameter, and its shadow changes from being oblate to being sharp by increasing in the spin parameter. Comparing the calculated vertical angular diameter of the shadow with that of M87*, we found that the latter may possess about <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msup><mn>10</mn><mn>36</mn></msup></semantics></math></inline-formula> protons as its source of electric charge, if it is a rotating charged Weyl black hole. A complete derivation of the ergosphere and the static limit is also presented.https://www.mdpi.com/2075-4434/9/2/43Weyl gravityblack hole shadowergosphere |
| spellingShingle | Mohsen Fathi Marco Olivares José R. Villanueva Ergosphere, Photon Region Structure, and the Shadow of a Rotating Charged Weyl Black Hole Galaxies Weyl gravity black hole shadow ergosphere |
| title | Ergosphere, Photon Region Structure, and the Shadow of a Rotating Charged Weyl Black Hole |
| title_full | Ergosphere, Photon Region Structure, and the Shadow of a Rotating Charged Weyl Black Hole |
| title_fullStr | Ergosphere, Photon Region Structure, and the Shadow of a Rotating Charged Weyl Black Hole |
| title_full_unstemmed | Ergosphere, Photon Region Structure, and the Shadow of a Rotating Charged Weyl Black Hole |
| title_short | Ergosphere, Photon Region Structure, and the Shadow of a Rotating Charged Weyl Black Hole |
| title_sort | ergosphere photon region structure and the shadow of a rotating charged weyl black hole |
| topic | Weyl gravity black hole shadow ergosphere |
| url | https://www.mdpi.com/2075-4434/9/2/43 |
| work_keys_str_mv | AT mohsenfathi ergospherephotonregionstructureandtheshadowofarotatingchargedweylblackhole AT marcoolivares ergospherephotonregionstructureandtheshadowofarotatingchargedweylblackhole AT joservillanueva ergospherephotonregionstructureandtheshadowofarotatingchargedweylblackhole |