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Light Deflection by a Rotating Global Monopole Spacetime

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arxiv 1702.05600 v2 pith:PJXNAKNN submitted 2017-02-18 gr-qc

Light Deflection by a Rotating Global Monopole Spacetime

classification gr-qc
keywords deflectionglobalmonopolelightrotatingspacetimecorrespondingletelier
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We investigate the deflection of light by a rotating global monopole spacetime and a rotating Letelier spacetime in the weak deflection approximation. To this end, we apply the Gauss-Bonnet theorem to the corresponding osculating optical geometries and show that the deflection of light increases due to the presence of the global monopole parameter and the string cloud parameter, respectively. The results obtained for the deflection angle in the equatorial plane generalize known results for the corresponding non-rotating global monopole and Letelier spacetimes as well as the Kerr solution.

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Cited by 1 Pith paper

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