84 citations · 109 across the 4 of their papers we have counts for
Showing gr-qcShow all
3 papers · 1 filter
gr-qc2007★ 6 cited
Numerical experiments of adjusted BSSN systems for controlling constraint violations
Kenta Kiuchi, Hisa-aki Shinkai
We present our numerical comparisons between the BSSN formulation widely used in numerical relativity today and its adjusted versions using constraints. We performed three testbeds…
gr-qc2007★ 12 cited
Gravitational Wave Signals from Chaotic System: A Point Mass with A Disk
Kenta Kiuchi, Hiroko Koyama, Kei-ichi Maeda
We study gravitational waves from a particle moving around a system of a point mass with a disk in Newtonian gravitational theory. A particle motion in this system can be chaotic w…
gr-qc2007★ 7 cited
1/f fluctuations in spinning-particle motions around Schwarzschild black hole
Hiroko Koyama, Kenta Kiuchi, Tetsuro Konishi
We study the properties of chaos in the motions of a spinning test particle in Schwarzschild spacetime. We characterize the chaos using the power spectrum of the time series of …