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5 papers · 2 filters
The linear stability of the post-Newtonian triangular equilibrium in the three-body problem
Kei Yamada, Takuya Tsuchiya
Continuing work initiated in an earlier publication [Yamada, Tsuchiya, and Asada, Phys. Rev. D 91, 124016 (2015)], we reexamine the linear stability of the triangular solution in t…
3D Simulation of Spindle Gravitational Collapse of a Collisionless Particle System
Chul-Moon Yoo, Tomohiro Harada, Hirotada Okawa
We simulate the spindle gravitational collapse of a collisionless particle system in a 3D numerical relativity code and compare the qualitative results with the old work done by Sh…
AdS Monopole Black Hole and Phase Transition
Shoichiro Miyashita, Kei-ichi Maeda
We study the Einstein-SO(3)Yang-Mills-Higgs system with a negative cosmological constant, and find the monopole black hole solutions as well as the trivial Reissner-Nordström black…
Constructing of constraint preserving scheme for Einstein equations
Takuya Tsuchiya, Gen Yoneda
We propose a new numerical scheme of evolution for the Einstein equations using the discrete variational derivative method (DVDM). We derive the discrete evolution equation of the…
Relativistic stars in bigravity theory
Katsuki Aoki, Kei-ichi Maeda, Makoto Tanabe
Assuming static and spherically symmetric spacetimes in the ghost-free bigravity theory, we find a relativistic star solution, which is very close to that in general relativity. Th…