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Physics and astrophysics with gravitational waves from compact binary coalescence in ground based interferometers

Grover, Katherine L (2015)
Ph.D. thesis, University of Birmingham.

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Abstract

Advanced ground based laser interferometer gravitational wave detectors are due to come online in late 2015 and are expected to make the first direct detections of gravitational waves, with compact binary coalescence widely regarded as one of the most promising sources for detection.
In Chapter I I compare two techniques for predicting the uncertainty of sky localization of these sources with full Bayesian inference. I find that timing triangulation alone tends to over-estimate the uncertainty and that average predictions can be brought to better agreement by the inclusion of phase consistency information in timing-triangulation techniques.
Gravitational wave signals will provide a testing ground for the strong field dynamics of GR. Bayesian data analysis pipelines are being developed to test GR in this new regime, as presented in Chapter 3 Appendix B. In Chapter II and Appendix C I compare the predicted from of the Bayes factor, presented by Cornish et al. and Vallisneri, with full Bayesian inference. I find that the approximate scheme predicts exact results with good accuracy above fitting factors of ~ 0.9.
The expected rate of detection of Compact Binary Coalescence signals has large associated uncertainties due to unknown merger rates. The tool presented in Chapter III provides a way to estimate the expected rate of specified CBC systems in a selected detector.

Type of Work:Ph.D. thesis.
Supervisor(s):Vecchio, Alberto and Mandel, Ilya
School/Faculty:Colleges (2008 onwards) > College of Engineering & Physical Sciences
Department:School of Physics and Astronomy
Additional Information:

Publications resulting from research:

Comparison of gravitational wave detector network sky localization approximations. K. Grover, S. Fairhurst, B. F. Farr, I. Mandel, C. Rodriguez, T. Sidery, and A. Vecchio. Phys. Rev. D 89, 042004. Published 19 February 2014
doi: 10.1103/PhysRevD.89.042004

Observing the Dynamics of Supermassive Black Hole Binaries with Pulsar Timing Arrays. C. M. F. Mingarelli, K. Grover, T. Sidery, R. J. E. Smith, and A. Vecchio
Phys. Rev. Lett. 109, 081104. Published 23 August 2012
doi: 10.1103/PhysRevLett.109.081104

Towards a generic test of the strong field dynamics of general relativity using compact binary coalescence. T. G. F. Li, W. Del Pozzo, S. Vitale, C. Van Den Broeck, M. Agathos, J. Veitch, K. Grover, T. Sidery, R. Sturani, and A. Vecchio. Phys. Rev. D 85, 082003. Published 26 April 2012
doi: 10.1103/PhysRevD.85.082003

Testing general relativity with compact coalescing binaries: comparing exact and predictive methods to compute the Bayes factor. Walter Del Pozzo, Katherine Grover, Ilya Mandel and Alberto Vecchio. Published 3 October 2014. Classical and Quantum Gravity, Volume 31, Number 20
doi: 10.1088/0264-9381/31/20/205006

Subjects:QB Astronomy
QC Physics
Institution:University of Birmingham
ID Code:6410
This unpublished thesis/dissertation is copyright of the author and/or third parties. The intellectual property rights of the author or third parties in respect of this work are as defined by The Copyright Designs and Patents Act 1988 or as modified by any successor legislation. Any use made of information contained in this thesis/dissertation must be in accordance with that legislation and must be properly acknowledged. Further distribution or reproduction in any format is prohibited without the permission of the copyright holder.
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