Light bending by a black body

Autor: Taekoon Lee, Jin Young Kim
Rok vydání: 2014
Předmět:
Zdroj: Journal of the Korean Physical Society. 65:948-951
ISSN: 1976-8524
0374-4884
DOI: 10.3938/jkps.65.948
Popis: We consider the velocity shift of light when the vacuum is modified by the finite temperature quantum electrodynamic effect. Within the geometric optics formalism, we calculate the bending angle of a light ray when the index of refraction has a gradient caused by black-body radiation. We find the trajectories and the bending angles for two simplified toy model cases. Assuming a neutron star to be an isothermal black body, we estimate the order of magnitude for the bending angle and compared it with the bending angle caused by a magnetic field.
Databáze: OpenAIRE
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