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Towards a first design of a Newtonian-noise cancellation system for Advanced LIGO

Coughlin, M. and Mukund, N. and Harms, J. and Driggers, J. and Adhikari, R. and Mitra, S. (2016) Towards a first design of a Newtonian-noise cancellation system for Advanced LIGO. Classical and Quantum Gravity, 33 (24). Art. No. 244001. ISSN 0264-9381. doi:10.1088/0264-9381/33/24/244001.

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Newtonian gravitational noise from seismic fields is predicted to be a limiting noise source at low frequency for second generation gravitational-wave detectors. Mitigation of this noise will be achieved by Wiener filtering using arrays of seismometers deployed in the vicinity of all test masses. In this work, we present optimized configurations of seismometer arrays using a variety of simplified models of the seismic field based on seismic observations at LIGO Hanford. The model that best fits the seismic measurements leads to noise reduction limited predominantly by seismometer self-noise. A first simplified design of seismic arrays for Newtonian-noise cancellation at the LIGO sites is presented, which suggests that it will be sufficient to monitor surface displacement inside the buildings.

Item Type:Article
Related URLs:
URLURL TypeDescription Paper
Coughlin, M.0000-0002-8262-2924
Mukund, N.0000-0002-8666-9156
Harms, J.0000-0002-7332-9806
Adhikari, R.0000-0002-5731-5076
Additional Information:© 2016 IOP Publishing Ltd. Received 6 June 2016, revised 6 October 2016; Accepted for publication 21 October 2016; Published 14 November 2016. MC was supported by the National Science Foundation Graduate Research Fellowship Program, under NSF grant number DGE 1144152. NM acknowledges Council of Scientific and Industrial Research (CSIR), India for providing financial support as Senior Research Fellow. SM acknowledges the support of the Science and Engineering Research Board (SERB), India through the fast track grant SR/FTP/PS-030/2012. 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 PHY-0757058. This paper has been assigned LIGO document number LIGO-P1600146.
Funding AgencyGrant Number
NSF Graduate Research FellowshipDGE 1144152
Council of Scientific and Industrial Research (CSIR)UNSPECIFIED
Science and Engineering Research Board (SERB)SR/FTP/PS-030/2012
Subject Keywords:Newtonian noise, seismometers, Wiener filter
Other Numbering System:
Other Numbering System NameOther Numbering System ID
LIGO DocumentLIGO-P1600146
Issue or Number:24
Record Number:CaltechAUTHORS:20161116-095606016
Persistent URL:
Official Citation:M Coughlin et al 2016 Class. Quantum Grav. 33 244001
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:72049
Deposited By: Tony Diaz
Deposited On:17 Nov 2016 00:27
Last Modified:12 Jul 2022 19:41

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