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Control strategy to limit duty cycle impact of earthquakes on the LIGO gravitational-wave detectors

MPG-Autoren

Gabbard,  H.
AEI-Hannover, MPI for Gravitational Physics, Max Planck Society;

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1707.03466.pdf
(Preprint), 613KB

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Zitation

Biscans, S., Warner, J., Mittleman, R., Buchanan, C., Coughlin, M., Evans, M., et al. (in preparation). Control strategy to limit duty cycle impact of earthquakes on the LIGO gravitational-wave detectors.


Zitierlink: https://hdl.handle.net/11858/00-001M-0000-002D-DBC0-2
Zusammenfassung
Advanced gravitational-wave detectors such as the Laser Interferometer Gravitational-Wave Observatories (LIGO) require an unprecedented level of isolation from the ground. When in operation, they are expected to observe changes in the space-time continuum of less than one thousandth of the diameter of a proton. Strong teleseismic events like earthquakes disrupt the proper functioning of the detectors, and result in a loss of data until the detectors can be returned to their operating states. An earthquake early-warning system, as well as a prediction model have been developed to help understand the impact of earthquakes on LIGO. This paper describes a control strategy to use this early-warning system to reduce the LIGO downtime by 30%. It also presents a plan to implement this new earthquake configuration in the LIGO automation system.