TY - JOUR

T1 - Gravitational waves from a chaotic dynamical system

AU - Kiuchi, Kenta

AU - Maeda, Kei ichi

N1 - Funding Information:
We would like to thank H. Sotani and S. Yamada for useful discussions. This work was partially supported by the Grant-in-Aid for Scientific Research Fund of the MEXT (No. 14540281) and by the Waseda University Grant for Special Research Projects and for The 21st Century COE Program (Holistic Research and Education Center for Physics Self-Organization Systems) at Waseda University.

PY - 2004

Y1 - 2004

N2 - To investigate how chaos affects gravitational waves, we study the gravitational waves from a spinning test particle moving around a Kerr black hole, which is a typical chaotic system. To compare the result with those in a nonchaotic dynamical system, we also analyze a spinless test particle, whose orbit can be complicated in the Kerr back ground although the system is integrable. We estimate the emitted gravitational waves by the multipole expansion of a gravitational field. We find a striking difference in the energy spectra of the gravitational waves. The spectrum for a chaotic orbit of a spinning particle contains various frequencies, while some characteristic frequencies appear in the case of a spinless particle.

AB - To investigate how chaos affects gravitational waves, we study the gravitational waves from a spinning test particle moving around a Kerr black hole, which is a typical chaotic system. To compare the result with those in a nonchaotic dynamical system, we also analyze a spinless test particle, whose orbit can be complicated in the Kerr back ground although the system is integrable. We estimate the emitted gravitational waves by the multipole expansion of a gravitational field. We find a striking difference in the energy spectra of the gravitational waves. The spectrum for a chaotic orbit of a spinning particle contains various frequencies, while some characteristic frequencies appear in the case of a spinless particle.

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U2 - 10.1103/PhysRevD.70.064036

DO - 10.1103/PhysRevD.70.064036

M3 - Article

AN - SCOPUS:84927765649

VL - 70

JO - Physical Review D - Particles, Fields, Gravitation and Cosmology

JF - Physical Review D - Particles, Fields, Gravitation and Cosmology

SN - 1550-7998

IS - 6

ER -