8 citations · 8 across the 1 of their papers we have counts for
5 papers
Re-formulating the Einstein equations for stable numerical simulations: Formulation Problem in Numerical Relativity
Hisa-aki Shinkai, Gen Yoneda
We review recent efforts to re-formulate the Einstein equations for fully relativistic numerical simulations. The so-called numerical relativity (computational simulations in gener…
Will hyperbolic formulations help numerical relativity? - Experiments using Ashtekar's connection variables
Hisa-aki Shinkai, Gen Yoneda
In order to perform accurate and stable long-term numerical integration of the Einstein equations, several hyperbolic systems have been proposed. We here report our numerical compa…
Lorentzian dynamics in the Ashtekar gravity
Hisa-aki Shinkai, Gen Yoneda
We examine the advantages of the SO(3)-ADM (Ashtekar) formulation of general relativity, from the point of following the dynamics of the Lorentzian spacetime in direction of applyi…
Newtonian and post-Newtonian binary neutron star mergers
Hisa-aki Shinkai, Wai-Mo Suen, F. Douglas Swesty +3
We present two of our efforts directed toward the numerical analysis of neutron star mergers, which are the most plausible sources for gravitational wave detectors that should begi…
Gravitational Waves in Brans-Dicke Theory : Analysis by Test Particles around a Kerr Black Hole
Motoyuki Saijo, Hisa-aki Shinkai, Kei-ichi Maeda
Analyzing test particles falling into a Kerr black hole, we study gravitational waves in Brans-Dicke theory of gravity. First we consider a test particle plunging with a constant a…