Phenomenology of amplitude-corrected post-Newtonian gravitational waveforms for compact binary inspiral: I. Signal-to-noise ratios

被引:62
作者
Van den Broeck, Chris [1 ]
Sengupta, Anand S. [1 ]
机构
[1] Cardiff Univ, Sch Phys & Astron, Cardiff CF24 3AA, Wales
关键词
D O I
10.1088/0264-9381/24/1/009
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We study the phenomenological consequences of amplitude-corrected post-Newtonian (PN) gravitational waveforms, as opposed to the more commonly used restricted PN waveforms, for the quasi-circular, adiabatic inspiral of compact binary objects. In the case of initial detectors it has been shown that the use of amplitude-corrected waveforms for detection templates would lead to significantly lower signal-to-noise ratios (SNRs) than those suggested by simulations based exclusively on restricted waveforms. We further elucidate the origin of the effect by an in-depth analytic treatment. The discussion is extended to advanced detectors, where new features emerge. Non-restricted waveforms are linear combinations of harmonics in the orbital phase, and in the frequency domain the kth harmonic is cut off at kf(LSO), with f(LSO) the orbital frequency at the last stable orbit. As a result, with non-restricted templates it is possible to achieve sizeable signal-to-noise ratios in cases where the dominant harmonic ( which is the one at twice the orbital phase) does not enter the detector's bandwidth. This will have important repercussions on the detection of binary inspirals involving intermediate-mass black holes. For sources at a distance of 100 Mpc, taking into account the higher harmonics will double the mass reach of Advanced LIGO, and that of EGO gets tripled. Conservative estimates indicate that the restricted waveforms underestimate detection rates for intermediate mass binary inspirals by at least a factor of 20.
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页码:155 / 176
页数:22
相关论文
共 78 条
[1]  
[Anonymous], 1987, Three hundred years of Gravitation
[2]  
[Anonymous], 2001, ASTROPH0108028
[3]   Probing the nonlinear structure of general relativity with black hole binaries [J].
Arun, K. G. ;
Iyer, B. R. ;
Qusailah, M. S. S. ;
Sathyaprakash, B. S. .
PHYSICAL REVIEW D, 2006, 74 (02)
[4]   Testing post-Newtonian theory with gravitational wave observations [J].
Arun, K. G. ;
Iyer, B. R. ;
Qusailah, M. S. S. ;
Sathyaprakash, B. S. .
CLASSICAL AND QUANTUM GRAVITY, 2006, 23 (09) :L37-L43
[5]   Parameter estimation of inspiralling compact binaries using 3.5 post-Newtonian gravitational wave phasing: The nonspinning case (vol D 71, art no 084008, 2005) [J].
Arun, KG ;
Iyer, BR ;
Sathyaprakash, BS ;
Sundararajan, PA .
PHYSICAL REVIEW D, 2005, 72 (06)
[6]   Parameter estimation of inspiralling compact binaries using 3.5 post-Newtonian gravitational wave phasing: The nonspinning case [J].
Arun, KG ;
Iyer, BR ;
Sathyaprakash, BS ;
Sundararajan, PA .
PHYSICAL REVIEW D, 2005, 71 (08) :1-16
[7]   The 2.5PN gravitational wave polarizations from inspiralling compact binaries in circular orbits [J].
Arun, KG ;
Blanchet, L ;
Iyer, BR ;
Qusailah, MSS .
CLASSICAL AND QUANTUM GRAVITY, 2004, 21 (15) :3771-3801
[8]   The 2.5PN gravitational wave polarizations from inspiralling compact binaries in circular orbits (vol 21, pg 3771, 2005) [J].
Arun, KG ;
Blanchet, L ;
Iyer, BR ;
Qusailah, MSS .
CLASSICAL AND QUANTUM GRAVITY, 2005, 22 (14) :3115-3117
[9]   A template bank to search for gravitational waves from inspiralling compact binaries: I. Physical models [J].
Babak, S. ;
Balasubramanian, R. ;
Churches, D. ;
Cokelaer, T. ;
Sathyaprakash, B. S. .
CLASSICAL AND QUANTUM GRAVITY, 2006, 23 (18) :5477-5504
[10]  
BABAK S, UNPUB