290 citations · 983 across the 12 of their papers we have counts for
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gr-qc2020★ 38 cited
Gravitational lens without asymptotic flatness: Its application to the Weyl gravity
Keita Takizawa, Toshiaki Ono, Hideki Asada
We discuss, without assuming asymptotic flatness, a gravitational lens for an observer and source that are within a finite distance from a lens object. The proposed lens equation i…
gr-qc2020★ 80 cited
Gravitational deflection angle of light: Definition by an observer and its application to an asymptotically nonflat spacetime
Keita Takizawa, Toshiaki Ono, Hideki Asada
The gravitational deflection angle of light for an observer and source at finite distance from a lens object has been studied by Ishihara et al. [Phys. Rev. D, 94, 084015 (2016)],…