Talk detail

Participant	Ono, Toshiaki
Institution	Hirosaki University - 3 Bunkyoucyo - Hirosaki - Aomori - Japan

Session	PT2	Accepted		Order	Time
Talk	Oral abstract	Title	Title: Gravitomagnetic bending angle of light in stationary axisymmetric spacetimes 1: Formulation
Coauthors
Abstract	We discuss a possible extension of the method of calculating the bending angle of light to stationary, axisymmetric and asymptotically flat spacetimes [T. Ono et al, Phys. Rev. D 96, 104037 (2017)]. We introduce a spatial metric to define the bending angle of light in the finite-distance situation. We show that the proposed bending angle of light is coordinate-invariant by using the Gauss-Bonnet theorem. The non-vanishing geodesic curvature of the photon orbit with the spatial metric is caused in gravitomagnetism, even though the light ray in the four-dimensional spacetime follows the null geodesic.
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