405 citations · 2.7k across the 85 of their papers we have counts for
5 papers · 1 filter
Femto-lensing due to a Cosmic String
Chul-Moon Yoo, Ryo Saito, Yuuiti Sendouda +2
We consider the femto-lensing due to a cosmic string. If a cosmic string with the deficit angle [femto-arcsec] [rad] exists around the line of sight to a…
Notes on Spinoptics in a Stationary Spacetime
Chul-Moon Yoo
In arXiv:1105.5629, equations of the modified geometrical optics for circularly polarized photon trajectories in a stationary spacetime are derived by using a (1+3)-decomposed form…
Probing the Inhomogeneous Universe with Gravitational Wave Cosmology
Kent Yagi, Atsushi Nishizawa, Chul-Moon Yoo
If we assume that we live in the center of a spherical inhomogeneous universe, we can explain the apparent accelerating expansion of the universe without introducing the unknown da…
Black Hole Universe: Construction and Analysis of Initial Data
Chul-Moon Yoo, Hiroyuki Abe, Yohsuke Takamori +1
We numerically construct an one-parameter family of initial data of an expanding inhomogeneous universe model which is composed of regularly aligned black holes with an identical m…
Evolution of density perturbations in large void universe
Ryusuke Nishikawa, Chul-Moon Yoo, Ken-ichi Nakao
We study the evolution of linear density perturbations in a large spherical void universe which accounts for the acceleration of the cosmic volume expansion without introducing dar…