Improving astrophysical parameter estimation via offline noise subtraction for Advanced LIGO
Name
PhysRevD.99.042001.pdf
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Author(s)
Driggers, J. C.
Vitale, S.
Lundgren, A. P.
Evans, M.
Kawabe, K.
Dwyer, S. E.
Izumi, K.
Schofield, R. M. S.
Effler, A.
Sigg, D.
Date Issued
February 2019
Journal
Physical Review D
Publisher
American Physical Society
Version
Final published version
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.
MIT Department
LIGO (Observatory : Massachusetts Institute of Technology)
Terms of Use
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
https://doi.org/10.1103/PhysRevD.99.042001
