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Improving astrophysical parameter estimation via offline noise subtraction for Advanced LIGO

Driggers, J. C. and Abbott, B. P. and Abbott, R. and Adhikari, R. X. and Ananyeva, A. and Appert, S. and Arai, K. and Billingsley, G. and Bork, R. and Brooks, A. F. and Coyne, D. C. and Etzel, T. and Gushwa, K. E. and Gustafson, E. K. and Heptonstall, A. W. and Korth, W. Z. and Maros, E. and Massinger, T. J. and Matichard, F. and McIver, J. and Quintero, E. A. and Reitze, D. H. and Robertson, N. A. and Rollins, J. G. and Sanchez, E. J. and Sanchez, L. E. and Taylor, R. and Torrie, C. I. and Vajente, G. and Vass, S. and Venugopalan, G. and Wipf, C. C. and Yamamoto, H. and Zhang, L. and Zucker, M. E. and Zweizig, J. (2019) Improving astrophysical parameter estimation via offline noise subtraction for Advanced LIGO. Physical Review D, 99 (4). Art. No. 042001. ISSN 2470-0010. doi:10.1103/PhysRevD.99.042001.

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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.

Item Type:Article
Related URLs:
URLURL TypeDescription Paper
Adhikari, R. X.0000-0002-5731-5076
Arai, K.0000-0001-8916-8915
Billingsley, G.0000-0002-4141-2744
Brooks, A. F.0000-0003-4295-792X
Coyne, D. C.0000-0002-6427-3222
Korth, W. Z.0000-0003-3527-1348
Massinger, T. J.0000-0002-3429-5025
McIver, J.0000-0003-0316-1355
Vajente, G.0000-0002-7656-6882
Zhang, L.0000-0002-0898-787X
Zucker, M. E.0000-0002-2544-1596
Zweizig, J.0000-0002-1521-3397
Additional Information:© 2019 American Physical Society. Received 11 July 2018; published 20 February 2019. The authors would like to thank the LIGO Scientific Collaboration’s astrophysical parameter estimation group for their support. S. V. would like to thank R. Essick for providing the code to plot the sky location of sources. We are also very grateful for the computing support provided by The MathWorks, Inc. LIGO was constructed by the California Institute of Technology and Massachusetts Institute of Technology with funding from the National Science Foundation and operates under Cooperative Agreement No. PHY-0757058. This article has been given LIGO Document No. P1700260.
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Other Numbering System NameOther Numbering System ID
LIGO DocumentP1700260
Issue or Number:4
Record Number:CaltechAUTHORS:20190220-081310261
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:92993
Deposited By: Tony Diaz
Deposited On:20 Feb 2019 18:40
Last Modified:16 Nov 2021 16:55

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