Improving astrophysical parameter estimation via offline noise subtraction for Advanced LIGO

J. C. Driggers, E. D. Hall, J. Hanson, J. Hough, J. Liu, B. Smith, N. A. Lockerbie, L. Zhang, LIGO Scientific Collaboration

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

The Advanced LIGO detectors have recently completed their second observation run successfully. The run lasted for approximately 10 months and led to multiple new discoveries. The sensitivity to gravitational waves was partially limited by laser noise. Here, we utilize auxiliary sensors that witness these correlated noise sources, and use them for noise subtraction in the time domain data. This noise and line removal is particularly significant for the LIGO Hanford Observatory, where the improvement in sensitivity is greater than 20%. Consequently, we were also able to improve the astrophysical estimation for the location, masses, spins, and orbital parameters of the gravitational wave progenitors.

LanguageEnglish
Article number042001
Number of pages9
JournalPhysical Review D
Volume99
Issue number4
DOIs
Publication statusPublished - 20 Feb 2019

Fingerprint

LIGO (observatory)
subtraction
astrophysics
gravitational waves
sensitivity
observatories
orbitals
sensors
detectors
lasers

Keywords

  • LIGO detectors
  • gravitational waves
  • noise subtraction

Cite this

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abstract = "The Advanced LIGO detectors have recently completed their second observation run successfully. The run lasted for approximately 10 months and led to multiple new discoveries. The sensitivity to gravitational waves was partially limited by laser noise. Here, we utilize auxiliary sensors that witness these correlated noise sources, and use them for noise subtraction in the time domain data. This noise and line removal is particularly significant for the LIGO Hanford Observatory, where the improvement in sensitivity is greater than 20{\%}. Consequently, we were also able to improve the astrophysical estimation for the location, masses, spins, and orbital parameters of the gravitational wave progenitors.",
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Improving astrophysical parameter estimation via offline noise subtraction for Advanced LIGO. / Driggers, J. C.; Hall, E. D.; Hanson, J.; Hough, J.; Liu, J.; Smith, B.; Lockerbie, N. A.; Zhang, L.; LIGO Scientific Collaboration.

In: Physical Review D, Vol. 99, No. 4, 042001, 20.02.2019.

Research output: Contribution to journalArticle

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AU - Driggers, J. C.

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AU - Hough, J.

AU - Liu, J.

AU - Smith, B.

AU - Lockerbie, N. A.

AU - Zhang, L.

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AB - The Advanced LIGO detectors have recently completed their second observation run successfully. The run lasted for approximately 10 months and led to multiple new discoveries. The sensitivity to gravitational waves was partially limited by laser noise. Here, we utilize auxiliary sensors that witness these correlated noise sources, and use them for noise subtraction in the time domain data. This noise and line removal is particularly significant for the LIGO Hanford Observatory, where the improvement in sensitivity is greater than 20%. Consequently, we were also able to improve the astrophysical estimation for the location, masses, spins, and orbital parameters of the gravitational wave progenitors.

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KW - gravitational waves

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