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The Advanced LIGO timing system

Bartos, Imre and Bork, Rolf and Factourovich, Maxim and Heefner, Jay and Márka, Szabolcs and Márka, Zsuzsa and Raics, Zoltán and Schwinberg, Paul and Sigg, Daniel (2010) The Advanced LIGO timing system. Classical and Quantum Gravity, 27 (8). Art. No. 084025. ISSN 0264-9381.

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Gravitational wave detection using a network of detectors relies upon the precise time stamping of gravitational wave signals. The relative arrival times between detectors are crucial, e.g. in recovering the source direction, an essential step in using gravitational waves for multi-messenger astronomy. Due to the large size of gravitational wave detectors, timing at different parts of a given detector also needs to be highly synchronized. In general, the requirement toward the precision of timing is determined such that, upon detection, the deduced (astro-) physical results should not be limited by the precision of timing. The Advanced LIGO optical timing distribution system is designed to provide UTC-synchronized timing information for the Advanced LIGO detectors that satisfies the above criterium. The Advanced LIGO timing system has modular structure, enabling quick and easy adaptation to the detector frame as well as possible changes or additions of components. It also includes a self-diagnostics system that enables the remote monitoring of the status of timing. After the description of the Advanced LIGO timing system, several tests are presented that demonstrate its precision and robustness.

Item Type:Article
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URLURL TypeDescription DOIArticle
Bartos, Imre0000-0001-5607-3637
Additional Information:© 2010 IOP Publishing Ltd. Received 25 November 2009, in final form 22 December 2009. Published 6 April 2010. The authors would like to thank Keith Thorne, David Strom and Raymond Frey for their valuable comments.
Subject Keywords:Instrumentation and measurement ; Gravitation and cosmology ; Astrophysics and astroparticles
Issue or Number:8
Classification Code:PACS: 95.55.−n, 95.55.Ym ; MSC: 83C35 Gravitational waves
Record Number:CaltechAUTHORS:20101021-144750192
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Official Citation:Imre Bartos et al 2010 Class. Quantum Grav. 27 084025 doi: 10.1088/0264-9381/27/8/084025
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:20471
Deposited By: Tony Diaz
Deposited On:30 Nov 2010 19:05
Last Modified:09 Mar 2020 13:18

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