Frequency-domain P-approximant filters for time-truncated inspiral gravitational wave signals from compact binaries -: art. no. 084036

被引:116
|
作者
Damour, T
Iyer, BR
Sathyaprakash, BS
机构
[1] Inst Hautes Etud Sci, F-91440 Bures Sur Yvette, France
[2] Raman Res Inst, Bangalore 560080, Karnataka, India
[3] Cardiff Univ, Cardiff CF2 3YB, S Glam, Wales
[4] Albert Einstein Inst, D-14476 Golm, Germany
关键词
D O I
10.1103/PhysRevD.62.084036
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
Frequency-domain filters for time-windowed gravitational waves from inspiraling compact binaries are constructed which combine the excellent performance of our previously developed time-domain P approximants with the analytic convenience of the stationary phase approximation without a serious loss in event rate. These Fourier-domain representations incorporate the ''edge oscillations'' due to the (assumed) abrupt shutoff of the time-domain signal caused by the relativistic plunge at the last stable orbit. These new analytic approximations, the SPP approximants, are not only effectual for detection and faithful for parameter estimation, but are also computationally inexpensive to generate (and are faster by factors up to 10, as compared to the corresponding time-domain templates). The SPP approximants should provide data analysts the Fourier-domain templates for massive black hole binaries of total mass m less than or similar to 40M circle dot, the most likely sources for LIGO and VIRGO.
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页数:34
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