Weak Deflection Angle, Hawking Radiation and Greybody Bound of Reissner–Nordström Black Hole Corrected by Bounce Parameter
In this study, we probe the weak lensing by a Reissner–Nordström black hole corrected by bounce parameter in plasma and dark matter mediums. For this, the optical geometry and the Gibbons–Werner approach are utilized to obtain the bending angle in the weak field limitations. We examine that the impa...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-01-01
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| Series: | Symmetry |
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| Online Access: | https://www.mdpi.com/2073-8994/15/1/148 |
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| author | Wajiha Javed Mehak Atique Reggie C. Pantig Ali Övgün |
| author_facet | Wajiha Javed Mehak Atique Reggie C. Pantig Ali Övgün |
| author_sort | Wajiha Javed |
| collection | DOAJ |
| description | In this study, we probe the weak lensing by a Reissner–Nordström black hole corrected by bounce parameter in plasma and dark matter mediums. For this, the optical geometry and the Gibbons–Werner approach are utilized to obtain the bending angle in the weak field limitations. We examine that the impact of these mediums increases the black hole’s bending angle. In addition, we graphically study the deflection angle of light with respect to the impact parameter and examine that the bounce parameter directly affects the angle. Further, we compute the Hawking radiation via a topological method involving two invariants and verify our obtained result with the standard method of calculating the Hawking temperature. In addition, we compute the greybody factor’s bound of the black hole. Moreover, we analyze the bound graphically and observe that the bound shows convergent behavior. We also study that our attained results reduce the results of the Reissner–Nordström and Schwarzschild black holes by reducing the parameters. Finally, we probe how the bounce parameter affected the shadow radius and compared it to the shadow produced if the black hole is immersed in plasma. It is revealed that the rate at which the shadow radius changes with respect to <i>r</i> easily tends to zero under the effect of the bounce parameter, while the plasma merely increases the shadow radius. |
| first_indexed | 2024-03-09T11:08:40Z |
| format | Article |
| id | doaj.art-fc87f305be2b46069accf10a21f20353 |
| institution | Directory Open Access Journal |
| issn | 2073-8994 |
| language | English |
| last_indexed | 2024-03-09T11:08:40Z |
| publishDate | 2023-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Symmetry |
| spelling | doaj.art-fc87f305be2b46069accf10a21f203532023-12-01T00:52:35ZengMDPI AGSymmetry2073-89942023-01-0115114810.3390/sym15010148Weak Deflection Angle, Hawking Radiation and Greybody Bound of Reissner–Nordström Black Hole Corrected by Bounce ParameterWajiha Javed0Mehak Atique1Reggie C. Pantig2Ali Övgün3Department of Mathematics, Division of Science and Technology, University of Education, Lahore 54590, PakistanDepartment of Mathematics, Division of Science and Technology, University of Education, Lahore 54590, PakistanPhysics Department, Mapúa University, 658 Muralla St., Intramuros, Manila 1002, PhilippinesPhysics Department, Eastern Mediterranean University, North Cyprus via Mersin 10, Famagusta 99628, TurkeyIn this study, we probe the weak lensing by a Reissner–Nordström black hole corrected by bounce parameter in plasma and dark matter mediums. For this, the optical geometry and the Gibbons–Werner approach are utilized to obtain the bending angle in the weak field limitations. We examine that the impact of these mediums increases the black hole’s bending angle. In addition, we graphically study the deflection angle of light with respect to the impact parameter and examine that the bounce parameter directly affects the angle. Further, we compute the Hawking radiation via a topological method involving two invariants and verify our obtained result with the standard method of calculating the Hawking temperature. In addition, we compute the greybody factor’s bound of the black hole. Moreover, we analyze the bound graphically and observe that the bound shows convergent behavior. We also study that our attained results reduce the results of the Reissner–Nordström and Schwarzschild black holes by reducing the parameters. Finally, we probe how the bounce parameter affected the shadow radius and compared it to the shadow produced if the black hole is immersed in plasma. It is revealed that the rate at which the shadow radius changes with respect to <i>r</i> easily tends to zero under the effect of the bounce parameter, while the plasma merely increases the shadow radius.https://www.mdpi.com/2073-8994/15/1/148general relativitybending angleGauss–Bonnet theoremplasma mediumblack holegreybody |
| spellingShingle | Wajiha Javed Mehak Atique Reggie C. Pantig Ali Övgün Weak Deflection Angle, Hawking Radiation and Greybody Bound of Reissner–Nordström Black Hole Corrected by Bounce Parameter Symmetry general relativity bending angle Gauss–Bonnet theorem plasma medium black hole greybody |
| title | Weak Deflection Angle, Hawking Radiation and Greybody Bound of Reissner–Nordström Black Hole Corrected by Bounce Parameter |
| title_full | Weak Deflection Angle, Hawking Radiation and Greybody Bound of Reissner–Nordström Black Hole Corrected by Bounce Parameter |
| title_fullStr | Weak Deflection Angle, Hawking Radiation and Greybody Bound of Reissner–Nordström Black Hole Corrected by Bounce Parameter |
| title_full_unstemmed | Weak Deflection Angle, Hawking Radiation and Greybody Bound of Reissner–Nordström Black Hole Corrected by Bounce Parameter |
| title_short | Weak Deflection Angle, Hawking Radiation and Greybody Bound of Reissner–Nordström Black Hole Corrected by Bounce Parameter |
| title_sort | weak deflection angle hawking radiation and greybody bound of reissner nordstrom black hole corrected by bounce parameter |
| topic | general relativity bending angle Gauss–Bonnet theorem plasma medium black hole greybody |
| url | https://www.mdpi.com/2073-8994/15/1/148 |
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