CaltechAUTHORS
Published January 15, 2020 | Version Submitted + Published
Journal Article Open

Fast evaluation of multidetector consistency for real-time gravitational wave searches

Creators

Abstract

Gravitational waves searches for compact binary mergers with LIGO and Virgo are presently a two stage process. First, a gravitational wave signal is identified. Then, an exhaustive search over possible signal parameters is performed. It is critical that the identification stage is efficient in order to maximize the number of gravitational wave sources that are identified. Initial identification of gravitational wave signals with LIGO and Virgo happens in real-time which requires that less than one second of computational time must be used for each one second of gravitational wave data collected. In contrast, subsequent parameter estimation may require hundreds of hours of computational time to analyze the same one second of gravitational wave data. The real-time identification requirement necessitates efficient and often approximate methods for signal analysis. We describe one piece of real-time gravitational-wave identification: an efficient method for ascertaining a signal's consistency between multiple gravitational wave detectors suitable for real-time gravitational wave searches for compact binary mergers. This technique was used in analyses of Advanced LIGO's second observing run and Advanced Virgo's first observing run.

Additional Information

© 2020 American Physical Society. Received 19 August 2019; published 28 January 2020. This work was supported by the National Science Foundation through Grants No. PHY-1454389, No. OAC-1841480, No. ACI-1642391, No. PHY-1700765, and No. PHY-1607585. Funding for this project was provided by the Charles E. Kaufman Foundation of The Pittsburgh Foundation. We thank the LIGO Scientific Collaboration for input on this work. Specifically, C. H. would like to thank Patrick Brady for several illuminating discussions. This research was supported in part by Perimeter Institute for Theoretical Physics. Research at Perimeter Institute is supported by the Government of Canada through the Department of Innovation, Science, and Economic Development, and by the Province of Ontario through the Ministry of Research and Innovation. Computations for this research were performed on the Pennsylvania State Universitys Institute for CyberScience Advanced CyberInfrastructure (ICS-ACI). We are grateful for computational resources provided by the Leonard E Parker Center for Gravitation, Cosmology and Astrophysics at the University of Wisconsin-Milwaukee and supported by National Science Foundation Grants No. PHY-1626190 and No. PHY-1700765. The authors are grateful for computational resources provided by the LIGO Laboratory and supported by National Science Foundation Grants No. PHY-0757058 and No. PHY-0823459. This paper has LIGO document number: P1800362.

Attached Files

Published - PhysRevD.101.022003.pdf

Submitted - 1901.02227.pdf

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1901.02227.pdf

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Additional details

Additional titles

Alternative title
Fast evaluation of multi-detector consistency for real-time gravitational wave searches

Identifiers

Eprint ID
95142
Resolver ID
CaltechAUTHORS:20190501-135957305

Related works

Describes
https://arxiv.org/abs/1901.02227 (URL)

Funding

NSF
PHY-1454389
NSF
OAC-1841480
NSF
ACI-1642391
NSF
PHY-1700765
NSF
PHY-1607585
Charles E. Kaufman Foundation
Pittsburgh Foundation
Perimeter Institute for Theoretical Physics
Department of Innovation, Science and Economic Development (Canada)
Ontario Ministry of Research and Innovation
NSF
PHY-1626190
NSF
PHY-0757058
NSF
PHY-0823459

Dates

Created
2019-05-01
Created from EPrint's datestamp field
Updated
2023-06-01
Created from EPrint's last_modified field

Caltech Custom Metadata

Caltech groups
LIGO
Other Numbering System Name
LIGO Document
Other Numbering System Identifier
P1800362