Published August 15, 2018
| Published
Journal Article
Open
Enhancing confidence in the detection of gravitational waves from compact binaries using signal coherence
Chicago
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Abstract
We show that gravitational-wave signals from compact binary mergers may be better distinguished from instrumental noise transients by using Bayesian models that look for signal coherence across a detector network. This can be achieved even when the signal power is below the usual threshold for detection. This method could reject the vast majority of noise transients, and therefore increase sensitivity to weak gravitational waves. We demonstrate this using simulated signals, as well as data for GW150914 and LVT151012. Finally, we explore ways of incorporating our method into existing Advanced LIGO and Virgo searches to make them significantly more powerful.
Additional Information
© 2018 American Physical Society. (Received 27 March 2018; published 27 August 2018) We thank Alan Weinstein, Alex Nitz, Carl-Johan Haster, Stefan Hild, Reed Essick, Ryan Lynch, Colm Talbot, Eric Thrane, John Veitch, and Thomas Dent for helpful comments. Rory Smith is supported by the Australian Research Council Centre of Excellence for Gravitational Wave Discovery (OzGrav), through Project No. CE170100004. The authors thank the LIGO Scientific Collaboration for access to the data and gratefully acknowledge the support of the United States National Science Foundation (NSF) for the construction and operation of the LIGO Laboratory and Advanced LIGO Grant No. PHY-0757058, as well as the Science and Technology Facilities Council (STFC) of the United Kingdom, and the Max-Planck-Society (MPS) for support of the construction of Advanced LIGO. Additional support for Advanced LIGO was provided by the Australian Research Council. This manuscript has LIGO Document ID LIGO-P1700414.Attached Files
Published - PhysRevD.98.042007.pdf
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PhysRevD.98.042007.pdf
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Additional details
- Eprint ID
- 89154
- Resolver ID
- CaltechAUTHORS:20180827-094620996
- Australian Research Council
- CE170100004
- NSF
- PHY-0757058
- Science and Technology Facilities Council (STFC)
- Max-Planck-Society
- Created
-
2018-08-27Created from EPrint's datestamp field
- Updated
-
2021-11-16Created from EPrint's last_modified field
- Caltech groups
- LIGO
- Other Numbering System Name
- LIGO Document
- Other Numbering System Identifier
- P1700414