137 citations · 523 across the 27 of their papers we have counts for
28 papers
Gravitational Waves by Perturbation of a Slowly Rotating Thin-Shell Wormhole
Sung-Won Kim
In this paper, the gravitational wave generation by a slowly rotating thin-shell wormhole is considered. Since the rotating thin-shell wormhole is assumed to be an axisymmetric rig…
Gravitational Waves by the Perturbation of a Rotating Axisymmetric Rigid Body
Sung-Won Kim
Precession is one of the important mechanisms of gravitational wave generation in astrophysics. In general, free precession of a rigid body can be caused by the rotation of a triax…
The Gravitational Perturbation of a Morris-Thorne Wormhole and The Newman-Penrose Formalism
YuRi Kang, Sung-Won Kim
The gravitational perturbation of the Morris-Thorne wormhole has been derived by using the Newman-Penrose formalism. We apply Teukolsky equation to the wormhole spacetime, compute…
Evolution of Cosmological Horizons of Wormhole Cosmology
Sung-Won Kim
Recently we solved the Einstein's field equations to obtain the exact solution of the cosmological model with the Morris-Thorne type wormhole. We found the apparent horizons and an…
The Cosmological Model with a Wormhole and Hawking Temperature near Apparent Horizon
Sung-Won Kim
In this paper, a cosmological model with an isotropic form of the Morris-Thorne type wormhole was derived in a similar way to the McVittie solution to the black hole in the expandi…
The Birkhoff theorem and string clouds
K. A. Bronnikov, Sung-Won Kim, M. V. Skvortsova
We consider spherically symmetric space-times in GR under the unconventional assumptions that the spherical radius is either a constant or has a null gradient in the su…