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Effects of nonquadrupole modes in the detection and parameter estimation of black hole binaries with nonprecessing spins

Varma, Vijay and Ajith, Parameswaran (2017) Effects of nonquadrupole modes in the detection and parameter estimation of black hole binaries with nonprecessing spins. Physical Review D, 96 (12). Art. No. 124024. ISSN 2470-0010. doi:10.1103/PhysRevD.96.124024.

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We study the effect of nonquadrupolar modes in the detection and parameter estimation of gravitational waves (GWs) from black hole binaries with nonprecessing spins, using Advanced LIGO. We evaluate the loss of the signal-to-noise ratio (SNR) and the systematic errors in the estimated parameters when a quadrupole-mode template family is used to detect GW signals with all the relevant modes. Target signals including nonquadrupole modes are constructed by matching numerical-relativity simulations of nonprecessing black hole binaries describing the late inspiral, merger, and ringdown with post-Newtonian/effective-one-body waveforms describing the early inspiral. We find that neglecting nonquadrupole modes will, in general, cause unacceptable loss in the detection rate and unacceptably large systematic errors in the estimated parameters, for the case of massive binaries with large mass ratios. For a given mass ratio, neglecting subdominant modes will result in a larger loss in the detection rate for binaries with aligned spins. For binaries with antialigned spins, quadrupole-mode templates are more effectual in detection, at the cost of introducing a larger systematic bias in the parameter estimation. We provide a summary of the regions in the parameter space where neglecting nonquadrupole modes will cause an unacceptable loss of detection rates and unacceptably large systematic biases in the estimated parameters.

Item Type:Article
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URLURL TypeDescription Paper
Varma, Vijay0000-0002-9994-1761
Ajith, Parameswaran0000-0001-7519-2439
Additional Information:© 2017 American Physical Society. Received 19 December 2016; published 20 December 2017. We are indebted to the SXS Collaboration for making a public catalog of numerical-relativity waveforms and to Chandra Kant Mishra for sharing a notebook of post-Newtonian waveforms. We thank Abhirup Ghosh, Chandra Kant Mishra, Sascha Husa, Mark Hannam, Michael Pürrer, and Patricia Schmidt for useful discussions. We also thank Richard O’Shaughnessy, B. S. Sathyaprakash, Prayush Kumar, and the anonymous referee for several useful comments on the manuscript. P. A.’s research was supported by the AIRBUS Group Corporate Foundation through a chair in “Mathematics of Complex Systems” at the International Centre for Theoretical Sciences (ICTS); by a Ramanujan Fellowship from the Science and Engineering Research Board (SERB), India; by the SERB FastTrack fellowship SR/FTP/PS-191/2012; by Indo-US Centre for the Exploration of Extreme Gravity funded by the Indo-US Science and Technology Forum; and by the Max Planck Society and the Department of Science and Technology, India, through a Max Planck Partner Group at ICTS. V. V.’s research was supported by NSF Grant No. PHY-1404569 to Caltech and the Sherman Fairchild Foundation. Computations were performed at the ICTS clusters Mowgli, Dogmatix, and Alice.
Funding AgencyGrant Number
AIRBUS Group Corporate FoundationUNSPECIFIED
Science and Engineering Research Board (SERB)SR/FTP/PS-191/2012
Indo-US Science and Technology ForumUNSPECIFIED
Max Planck SocietyUNSPECIFIED
Department of Science and Technology (India)UNSPECIFIED
Sherman Fairchild FoundationUNSPECIFIED
Issue or Number:12
Record Number:CaltechAUTHORS:20171220-103935424
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:83978
Deposited By: Tony Diaz
Deposited On:20 Dec 2017 18:53
Last Modified:15 Nov 2021 20:15

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