405 citations · 2.7k across the 85 of their papers we have counts for
5 papers · 1 filter
Spherical Domain Wall Collapse in a Dust Universe
Norihiro Tanahashi, Chul-Moon Yoo
To clarify observational consequence of bubble nucleations in inflationary era, we analyse dynamics of a spherical domain wall in an expanding universe. We consider a spherical she…
Newtonian self-gravitating system in a relativistic huge void universe model
Ryusuke Nishikawa, Ken-ichi Nakao, Chul-Moon Yoo
We consider a test of the Copernican Principle through observations of the large-scale structures, and for this purpose we study the self-gravitating system in a relativistic huge…
Impact of small scale inhomogeneities on observations of standard candles
Kengo Iwata, Chul-Moon Yoo
We investigate the effect of small scale inhomogeneities on standard candle observations, such as type Ia supernovae (SNe) observations. Existence of the small scale inhomogeneitie…
Comparison of two approximation schemes for solving perturbations in a LTB cosmological model
Ryusuke Nishikawa, Ken-ichi Nakao, Chul-Moon Yoo
Recently, the present authors studied perturbations in the Lemaitre-Tolman-Bondi cosmological model by applying the second-order perturbation theory in the dust Friedmann-Lemaitre-…
Black Hole Universe with
Chul-Moon Yoo, Hirotada Okawa
Time evolution of a black hole lattice universe with a positive cosmological constant is simulated. The vacuum Einstein equations are numerically solved in a cubic box with a b…