Gravitational wave snapshots of generic extreme mass ratio inspirals

被引:173
作者
Drasco, S [1 ]
Hughes, SA
机构
[1] CALTECH, Jet Prop Lab, Pasadena, CA 91109 USA
[2] Cornell Univ, Ctr Radiophys & Space Res, Ithaca, NY 14853 USA
[3] MIT, Dept Phys, Cambridge, MA 02139 USA
[4] MIT, MIT Kavli Inst, Cambridge, MA 02139 USA
来源
PHYSICAL REVIEW D | 2006年 / 73卷 / 02期
关键词
D O I
10.1103/PhysRevD.73.024027
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
Using black hole perturbation theory, we calculate the gravitational waves produced by test particles moving on bound geodesic orbits about rotating black holes. The orbits we consider are generic-simultaneously eccentric and inclined. The waves can be described as having radial, polar, and azimuthal "voices," each of which can be made to dominate by varying eccentricity and inclination. Although each voice is generally apparent in the waveform, the radial voice is prone to overpowering the others. We also compute the radiative fluxes of energy and axial angular momentum at infinity and through the event horizon. These fluxes, coupled to a prescription for the radiative evolution of the Carter constant, will be used in future work to adiabatically evolve through a sequence of generic orbits. This will enable the calculation of inspiral waveforms that, while lacking certain important features, will approximate those expected from astrophysical extreme mass ratio captures sufficiently well to aid development of measurement algorithms on a relatively short time scale.
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页数:26
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