224 citations · 351 across the 3 of their papers we have counts for
3 papers
gr-qc2013★ 67 cited
Wave Effect in Gravitational Lensing by the Ellis Wormhole
Chul-Moon Yoo, Tomohiro Harada, Naoki Tsukamoto
We propose the use of modulated spectra of astronomical sources due to gravitational lensing to probe Ellis wormholes. The modulation factor due to gravitational lensing by the Ell…
gr-qc2012★ 60 cited
Signed magnification sums for general spherical lenses
Naoki Tsukamoto, Tomohiro Harada
It is well known that the sum of signed magnifications is invariant for mass lens systems. In this paper, we discuss the signed magnification sums of general spherical lens models…
gr-qc2012★ 224 cited
Can we distinguish between black holes and wormholes by their Einstein-ring systems?
Naoki Tsukamoto, Tomohiro Harada, Kohji Yajima
For the last decade, the gravitational lensing in the strong gravitational field has been studied eagerly. It is well known that, for the lensing by a black hole, infinite number o…