Accelerating gravitational wave parameter estimation with multi-band template interpolation

Vinciguerra, S., Veitch, J. and Mandel, I. (2017) Accelerating gravitational wave parameter estimation with multi-band template interpolation. Classical and Quantum Gravity, 34(11), 115006. (doi: 10.1088/1361-6382/aa6d44)

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Parameter estimation on gravitational wave signals from compact binary coalescence (CBC) requires the evaluation of computationally intensive waveform models, typically the bottleneck in the analysis. This cost will increase further as low frequency sensitivity in later second and third generation detectors motivates the use of longer waveforms. We describe a method for accelerating parameter estimation by exploiting the chirping behaviour of the signals to sample the waveform sparsely for portions where the full frequency resolution is not required. We demonstrate that the method can reproduce the original results with a waveform mismatch of  ≤$ 5\times 10^{-7}$ , but with a waveform generation cost up to ${\sim}50$ times lower for computationally costly frequency-domain waveforms starting from below 8 Hz.

Item Type:Articles
Glasgow Author(s) Enlighten ID:Veitch, Dr John
Authors: Vinciguerra, S., Veitch, J., and Mandel, I.
College/School:College of Science and Engineering > School of Physics and Astronomy
Journal Name:Classical and Quantum Gravity
Publisher:Institute of Physics
ISSN (Online):1361-6382
Copyright Holders:Copyright © 2017 IOP Publishing Ltd
First Published:First published in Classical and Quantum Gravity 34(11):115006
Publisher Policy:Reproduced under a Creative Commons License

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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
643971GraWIToNSheila RowanEuropean Commission (EC)606176S&E P&A - PHYSICS & ASTRONOMY
3011520Surveying black holes and neutron stars with gravitational wavesJohn VeitchScience and Technology Facilities Council (STFC)ST/K005014/2P&S - Physics & Astronomy