Light deflection in plasma in the Hartle-Thorne metric and in other axisymmetric spacetimes with a quadrupole moment
Bičák J.; Bezděková B.
The light propagation in plasma medium around stationary gravitating objects is studied in the geometrical optics limit. Static metrics with quadrupole moments are considered; however, most of our attention is on the stationary Hartle-Thorne metric and Kerr metric. Their different effects on the light deflection are compared. The deflection angle is given in a general analytic form, and the detailed calculations are performed in the weak-field limits and illustrated graphically. The trajectories of the light rays are constructed and compared, emphasizing the role of the quadrupole moment.
| type: | article |
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| journal: | Phys. Rev. D |
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| volume: | 108 |
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| nr: | 8 |
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| pages: | 21 |
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| year: | 2023 |
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| month: | 10 |
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| grants: | Mass and charge currents in general relativity and astrophysics, GAČR 21-11268S; 2021-2023; hlavní řešitel: Oldřich Semerák |
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