8 citations · 8 across the 1 of their papers we have counts for
4 papers
Universality in the distribution of caustics in the expanding Universe
Taihei Yano, Hiroko Koyama, Thomas Buchert +1
We numerically investigate the long--time evolution of density perturbations after the first appearance of caustics in an expanding cosmological model with one--dimensional `single…
Stellar Kinematics of the Spiral Structure in the Solar Neighborhood
Taihei Yano, Masashi Chiba, Naoteru Gouda
We present a method, based on the kinematic analysis of the Galactic disk stars, to clarify whether the internal motions of the stellar system in spiral arms follow those expected…
What determines the slope of the colour-magnitude relation of elliptical galaxies in the hierarchical clustering scenario?
Masahiro Nagashima, Naoteru Gouda
We examined the physical origin of the colour-magnitude relation of elliptical galaxies in clusters of galaxies in the hierarchical clustering scenario by using a semi-analytic mod…
Time scales of relaxation and Lyapunov instabilities in a one-dimensional gravitating sheet system
Toshio Tsuchiya, Naoteru Gouda
The relation between relaxation, the time scale of Lyapunov instabilities, and the Kolmogorov-Sinai time in a one-dimensional gravitating sheet system is studied. Both the maximum…