Reducing scattered light in LIGO’s third observing run

descriptionPublicationkeyboard_double_arrow_right Article , Preprint , Other literature type 22 Jan 2021Embargo end date: 01 Jan 2020 Australia, United States, Spain Publisher:IOP PublishingJournal:Classical and Quantum Gravity, volume 38, page 25,016 (issn: 0264-9381, eissn: 1361-6382,

Copyright policy )Funded by:NSF | The Construction of the A..., NSF | Gravitational Wave Astrop..., NSF | Instrument Development an... +2 projects

Authors: S Soni; C Austin; A Effler; R M S Schofield; G González; V V Frolov; J C Driggers; +192 Authors

S Soni; C Austin; A Effler; R M S Schofield; G González; V V Frolov; J C Driggers; A Pele; A L Urban; G Valdes; R Abbott; C Adams; R X Adhikari; A Ananyeva; S Appert; K Arai; J S Areeda; Y Asali; S M Aston; A M Baer; M Ball; S W Ballmer; S Banagiri; D Barker; L Barsotti; J Bartlett; B K Berger; J Betzwieser; D Bhattacharjee; G Billingsley; S Biscans; C D Blair; R M Blair; N Bode; P Booker; R Bork; A Bramley; A F Brooks; D D Brown; A Buikema; C Cahillane; K C Cannon; X Chen; A A Ciobanu; F Clara; S J Cooper; K R Corley; S T Countryman; P B Covas; D C Coyne; L E H Datrier; D Davis; C Di Fronzo; K L Dooley; P Dupej; S E Dwyer; T Etzel; M Evans; T M Evans; J Feicht; A Fernandez-Galiana; P Fritschel; P Fulda; M Fyffe; J A Giaime; K D Giardina; P Godwin; E Goetz; S Gras; C Gray; R Gray; A C Green; E K Gustafson; R Gustafson; J Hanks; J Hanson; T Hardwick; R K Hasskew; M C Heintze; A F Helmling-Cornell; N A Holland; J D Jones; S Kandhasamy; S Karki; M Kasprzack; K Kawabe; N Kijbunchoo; P J King; J S Kissel; Rahul Kumar; M Landry; B B Lane; B Lantz; M Laxen; Y K Lecoeuche; J Leviton; J Liu; M Lormand; A P Lundgren; R Macas; M MacInnis; D M Macleod; G L Mansell; S Márka; Z Márka; D V Martynov; K Mason; T J Massinger; F Matichard; N Mavalvala; R McCarthy; D E McClelland; S McCormick; L McCuller; J McIver; T McRae; G Mendell; K Merfeld; E L Merilh; F Meylahn; T Mistry; R Mittleman; G Moreno; C M Mow-Lowry; S Mozzon; A Mullavey; T J N Nelson; P Nguyen; L K Nuttall; J Oberling; Richard J Oram; C Osthelder; D J Ottaway; H Overmier; J R Palamos; W Parker; E Payne; R Penhorwood; C J Perez; M Pirello; H Radkins; K E Ramirez; J W Richardson; K Riles; N A Robertson; J G Rollins; C L Romel; J H Romie; M P Ross; K Ryan; T Sadecki; E J Sanchez; L E Sanchez; T R Saravanan; R L Savage; D Schaetzl; R Schnabel; E Schwartz; D Sellers; T Shaffer; D Sigg; B J J Slagmolen; J R Smith; B Sorazu; A P Spencer; K A Strain; L Sun; M J Szczepańczyk; M Thomas; P Thomas; K A Thorne; K Toland; C I Torrie; G Traylor; M Tse; G Vajente; D C Vander-Hyde; P J Veitch; K Venkateswara; G Venugopalan; A D Viets; T Vo; C Vorvick; M Wade; R L Ward; J Warner; B Weaver; R Weiss; C Whittle; B Willke; C C Wipf; L Xiao; H Yamamoto; Hang Yu; Haocun Yu; L Zhang; M E Zucker; J Zweizig; null (The LIGO Scientific Collaboration);

doi: 10.1088/1361-6382/abc906 , 10.48550/arxiv.2007.14876

arXiv: 2007.14876

handle: 10261/261374 , 21.11116/0000-0007-F17A-0 , 21.11116/0000-0006-D490-7 , 21.11116/0000-0006-D492-5 , 2440/130490

Reducing scattered light in LIGO’s third observing run

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Abstract

Noise due to scattered light has been a frequent disturbance in the Advanced LIGO gravitational wave detectors, hindering the detection of gravitational waves. The non stationary scatter noise caused by low frequency motion can be recognized as arches in the time-frequency plane of the gravitational wave channel. In this paper, we characterize the scattering noise for LIGO's third observing run O3 from April, 2019 to March, 2020. We find at least two different populations of scattering noise and we investigate the multiple origins of one of them as well as its mitigation. We find that relative motion between two specific surfaces is strongly correlated with the presence of scattered light and we implement a technique to reduce this motion. We also present an algorithm using a witness channel to identify the times this noise can be present in the detector.

24 pages, 15 figures, 1 table

Countries

Australia, United States, Spain

Related Organizations

University of Florida
United States
Louisiana State University
United States
Universität Hamburg
Germany
Max Planck Society
Germany
University of Minnesota Morris
United States

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Keywords

Ground motion, ground motion, scattered light, FOS: Physical sciences, 535, interferometry, 530, Interferometry, Scattered lights, LIGO, Astrophysics - Instrumentation and Methods for Astrophysics, Instrumentation and Methods for Astrophysics (astro-ph.IM)

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