5 papers
On uniqueness of non-vacuum stationary axisymmetric type D spacetime
Hiroaki Nakajima, Ya Guo, Wenbin Lin
We study a family of the non-vacuum stationary axisymmetric type D metrics, where the two principal null directions are geodesic and shearfree. It is demonstrated that the conforma…
Teukolsky-like equations with various spins in a deformed Kerr spacetime
Hiroaki Nakajima, Ya Guo, Wenbin Lin
We study the wave equations with the various spins on the background of the Kerr metric deformed by a function of the radial coordinate, on which background we have studied the gra…
Teukolsky-like equations with various spins in spherically symmetric spacetime
Ya Guo, Hiroaki Nakajima, Wenbin Lin
We study the wave equations with various spins on the background of the general spherically symmetric spacetime. We obtain the unified expression of the Teukolsky-like master equat…
Teukolsky-like equations in a non-vacuum axisymmetric type D spacetime
Ya Guo, Hiroaki Nakajima, Wenbin Lin
We study an axisymmetric metric satisfying the Petrov type D property with some additional ansatze, but without assuming the vacuum condition. We find that our metric in turn becom…
Gravitational-wave equation in effective one-body background for spinless binary
Ya Guo, Hiroaki Nakajima, Wenbin Lin
We construct the gravitational-wave equation in the background of the effective one-body system for the spinless binary, which is in general available with the spherically symmetri…