Gravitational lensing around Kehagias–Sfetsos compact objects surrounded by plasma
Abstract We study the optical properties of the Kehagias–Sfetsos (KS) compact objects, characterized by the “Hořava” parameter $$\omega _{_{KS}}$$ ωKS , in the presence of plasma, considering its homogeneous or power-law density distribution. The strong effects of both “Hořava” parameter $$\omega _{...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2019-06-01
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| Series: | European Physical Journal C: Particles and Fields |
| Online Access: | http://link.springer.com/article/10.1140/epjc/s10052-019-7034-7 |
| _version_ | 1828433741076234240 |
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| author | Sudipta Hensh Ahmadjon Abdujabbarov Jan Schee Zdeněk Stuchlík |
| author_facet | Sudipta Hensh Ahmadjon Abdujabbarov Jan Schee Zdeněk Stuchlík |
| author_sort | Sudipta Hensh |
| collection | DOAJ |
| description | Abstract We study the optical properties of the Kehagias–Sfetsos (KS) compact objects, characterized by the “Hořava” parameter $$\omega _{_{KS}}$$ ωKS , in the presence of plasma, considering its homogeneous or power-law density distribution. The strong effects of both “Hořava” parameter $$\omega _{_{KS}}$$ ωKS and plasma on the shadow cast by the KS compact objects are demonstrated. Using the weak field approximation, we investigate the gravitational lensing effect. Strong dependence of the deflection angle of the light on both the “Hořava” and plasma parameter is explicitly shown. The magnification of image source due to the weak gravitational lensing is given for both the homogeneous and inhomogeneous plasma. |
| first_indexed | 2024-12-10T18:39:55Z |
| format | Article |
| id | doaj.art-879b063346674bf193c9fa8813356aa2 |
| institution | Directory Open Access Journal |
| issn | 1434-6044 1434-6052 |
| language | English |
| last_indexed | 2024-12-10T18:39:55Z |
| publishDate | 2019-06-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | European Physical Journal C: Particles and Fields |
| spelling | doaj.art-879b063346674bf193c9fa8813356aa22022-12-22T01:37:40ZengSpringerOpenEuropean Physical Journal C: Particles and Fields1434-60441434-60522019-06-0179611410.1140/epjc/s10052-019-7034-7Gravitational lensing around Kehagias–Sfetsos compact objects surrounded by plasmaSudipta Hensh0Ahmadjon Abdujabbarov1Jan Schee2Zdeněk Stuchlík3Institute of Physics and Research Centre of Theoretical Physics and Astrophysics, Faculty of Philosophy and Science, Silesian University in OpavaCenter for Field Theory and Particle Physics and Department of Physics, Fudan UniversityInstitute of Physics and Research Centre of Theoretical Physics and Astrophysics, Faculty of Philosophy and Science, Silesian University in OpavaInstitute of Physics and Research Centre of Theoretical Physics and Astrophysics, Faculty of Philosophy and Science, Silesian University in OpavaAbstract We study the optical properties of the Kehagias–Sfetsos (KS) compact objects, characterized by the “Hořava” parameter $$\omega _{_{KS}}$$ ωKS , in the presence of plasma, considering its homogeneous or power-law density distribution. The strong effects of both “Hořava” parameter $$\omega _{_{KS}}$$ ωKS and plasma on the shadow cast by the KS compact objects are demonstrated. Using the weak field approximation, we investigate the gravitational lensing effect. Strong dependence of the deflection angle of the light on both the “Hořava” and plasma parameter is explicitly shown. The magnification of image source due to the weak gravitational lensing is given for both the homogeneous and inhomogeneous plasma.http://link.springer.com/article/10.1140/epjc/s10052-019-7034-7 |
| spellingShingle | Sudipta Hensh Ahmadjon Abdujabbarov Jan Schee Zdeněk Stuchlík Gravitational lensing around Kehagias–Sfetsos compact objects surrounded by plasma European Physical Journal C: Particles and Fields |
| title | Gravitational lensing around Kehagias–Sfetsos compact objects surrounded by plasma |
| title_full | Gravitational lensing around Kehagias–Sfetsos compact objects surrounded by plasma |
| title_fullStr | Gravitational lensing around Kehagias–Sfetsos compact objects surrounded by plasma |
| title_full_unstemmed | Gravitational lensing around Kehagias–Sfetsos compact objects surrounded by plasma |
| title_short | Gravitational lensing around Kehagias–Sfetsos compact objects surrounded by plasma |
| title_sort | gravitational lensing around kehagias sfetsos compact objects surrounded by plasma |
| url | http://link.springer.com/article/10.1140/epjc/s10052-019-7034-7 |
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