Kim, J. Y. and Lee, T. (2013) Nonlinear electrodynamic effect of light bending by charged astronomical objects. Il nuovo cimento C, 36 (Sup. 1). pp. 69-77. ISSN 1826-9885
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Abstract
A nonuniform electric or magnetic field can induce a continually varying index of refraction. A strong electromagnetic field can change the vacuum index of refraction by the nonlinear electrodynamic effect. We calculate the bending angle of a light ray under strong electric and magnetic field of charged black hole and neutron star according to the nonlinear electrodynamics of the Euler-Heisenberg interaction. We estimate that the electrical bending angle is negligibly small compared with the gravitational bending. The bending of light by the magnetic field of a neutron star is also significantly smaller than the bending angle by gravitation.
| Item Type: | Article |
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| Uncontrolled Keywords: | Quantum electrodynamics ; Fundamental aspects of astrophysics |
| Subjects: | 500 Scienze naturali e Matematica > 530 Fisica |
| Depositing User: | Marina Spanti |
| Date Deposited: | 07 May 2020 16:54 |
| Last Modified: | 07 May 2020 16:54 |
| URI: | http://eprints.bice.rm.cnr.it/id/eprint/18434 |
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