2015•arXiv (Cornell University)Open access
Light deflection in Kerr field for off-equatorial source
Sarani Chakraborty, Abhisek Sen
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Abstract
Deflection angle for a light ray travelling in the equatorial plane of a rotating Kerr mass has been already calculated by various investigators. Considering the light ray to be travelling only slightly above the equatorial plane, calculations have been made for such a ray for its deflection angle. In this paper, we calculate deflection angles for the light ray at various heights, which are small compared to the impact parameter and derive corresponding analytical expressions for deflection angle.
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