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Validating gravitational-wave detections: The Advanced LIGO hardware injection system

Biwer, C. and Rollins, J. G. and Kanner, J. B. and Weinstein, A. J. (2017) Validating gravitational-wave detections: The Advanced LIGO hardware injection system. Physical Review D, 95 (6). Art. No. 062002. ISSN 2470-0010. doi:10.1103/PhysRevD.95.062002.

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Hardware injections are simulated gravitational-wave signals added to the Laser Interferometer Gravitational-wave Observatory (LIGO). The detectors’ test masses are physically displaced by an actuator in order to simulate the effects of a gravitational wave. The simulated signal initiates a control-system response which mimics that of a true gravitational wave. This provides an end-to-end test of LIGO’s ability to observe gravitational waves. The gravitational-wave analyses used to detect and characterize signals are exercised with hardware injections. By looking for discrepancies between the injected and recovered signals, we are able to characterize the performance of analyses and the coupling of instrumental subsystems to the detectors’ output channels. This paper describes the hardware injection system and the recovery of injected signals representing binary black hole mergers, a stochastic gravitational wave background, spinning neutron stars, and sine-Gaussians.

Item Type:Article
Related URLs:
URLURL TypeDescription Paper
Kanner, J. B.0000-0001-8115-0577
Weinstein, A. J.0000-0002-0928-6784
Additional Information:© 2017 American Physical Society. Received 23 December 2016; published 27 March 2017. LIGO was constructed by the California Institute of Technology and Massachusetts Institute of Technology with funding from the National Science Foundation (NSF), and operates under cooperative agreement PHY-0757058. Advanced LIGO was built under Grant No. PHY-0823459. Computations were carried out on the Syracuse University HTC Campus Grid which is supported by NSF Grant No. ACI-1341006. Fellowship support from the LIGO Laboratory for S. K. is gratefully acknowledged. C. B. and D. A. B. acknowledge support from NSF Grant No. PHY-1404395. K. R. acknowledges support from NSF Grant No. PHY-1505932. E. T. acknowledges support from the Australian Research Council Grant No. FT150100281 and CE170100004. P. S. acknowledges support from NSF Grant No. PHY-1404121. J. R. S. acknowledges support from NSF Grant No. PHY-1255650. J. V. acknowledges support from the Science and Technology Facilities Council Grant No. ST/K005014/1. J. L. and R. O. acknowledge support from NSF Grant No. PHY 1505629. C. B. would like to thank Laura Nuttall for providing useful suggestions and Collin Capano for the software injection data in Sec. III A. This paper carries the LIGO Document Number LIGO-P1600285.
Funding AgencyGrant Number
Australian Research CouncilFT150100281
Australian Research CouncilCE170100004
Science and Technology Facilities Council (STFC)ST/K005014/1
Other Numbering System:
Other Numbering System NameOther Numbering System ID
LIGO DocumentLIGO-P1600285
Issue or Number:6
Record Number:CaltechAUTHORS:20170328-102915148
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Official Citation:Validating gravitational-wave detections: The Advanced LIGO hardware injection system C. Biwer et al. Phys. Rev. D 95, 062002
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:75471
Deposited By: Tony Diaz
Deposited On:28 Mar 2017 17:38
Last Modified:15 Nov 2021 16:33

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