290 citations · 290 across the 1 of their papers we have counts for
6 papers
Gravitational bending angle of light for finite distance and the Gauss-Bonnet theorem
Asahi Ishihara, Yusuke Suzuki, Toshiaki Ono +2
We discuss a possible extension of calculations of the bending angle of light in a static, spherically symmetric and asymptotically flat spacetime to a non-asymptotically flat case…
Gravitational lensing in Tangherlini spacetime in the weak gravitational field and the strong gravitational field
Naoki Tsukamoto, Takao Kitamura, Koki Nakajima +1
The gravitational lensing effects in the weak gravitational field by exotic lenses have been investigated intensively to find nonluminous exotic objects. Gravitational lensing base…
Microlensed image centroid motions by an exotic lens object with negative convergence or negative mass
Takao Kitamura, Koji Izumi, Koki Nakajima +2
Gravitational lens models with negative convergence inspired by modified gravity theories, exotic matter and energy have been recently examined, in such a way that a static and sph…
Gravitational lensing shear by an exotic lens object with negative convergence or negative mass
Koji Izumi, Chisaki Hagiwara, Koki Nakajima +2
Gravitational lens models with negative convergence(surface mass density projected onto the lens plane) inspired by modified gravity theories, exotic matter and energy have been re…
Demagnifying gravitational lenses toward hunting a clue of exotic matter and energy
Takao Kitamura, Koki Nakajima, Hideki Asada
We examine a gravitational lens model inspired by modified gravity theories and exotic matter and energy. We study an asymptotically flat, static, and spherically symmetric spaceti…
Astrometric Image Centroid Displacements due to Gravitational Microlensing by the Ellis Wormhole
Yukiharu Toki, Takao Kitamura, Hideki Asada +1
Continuing work initiated in an earlier publication (Abe, ApJ, 725 (2010) 787), we study the gravitational microlensing effects of the Ellis wormhole in the weak-field limit. First…