Speaker
Description
ravitational-wave astronomy has provided a unique probe into the dynamics of globular clusters, active galactic nuclei, and few-body gravitationally interacting systems. While binary black hole systems are a prevalent source of gravitational waves in ground-based interferometers, such systems could also be perturbed by the presence of a distant, third body, i.e. a supermassive black hole. Over secular timescales (i.e. timescales larger than the orbital period of the binary), the gravitational interaction of the binary with the third body may lead to orbital resonances. One such resonance, known as the Kozai mechanism, causes an oscillation between the values of the binary’s eccentricity and its inclination with respect to the third body, driving the initially circular binary to arbitrarily high eccentricities at low inclinations. Such eccentricities result in close encounters near periapsis, with GW bursts particularly relevant for ground-based detectors. In this paper, we focus on the Kozai mechanism within the context of gravitational wave astronomy. We use REBOUND, a few-body simulation code, to simulate the dynamics of triple bodies with one steller mass black hole, one intermediate mass black hole, and one supermassive black hole, with kozai oscillations. From the quadrupole formalism, we extract gravitational-wave templates in cases that may be detectable by future detectors, and speculate on the event rate of these kinds of systems.
| Participate the oral/poster presentation award competition | No |
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