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Type: Journal article
Title: Search for gravitational waves from Scorpius X-1 in the first Advanced LIGO observing run with a hidden Markov model
Author: Abbott, B.
Abbott, R.
Abbott, T.
Acernese, F.
Ackley, K.
Adams, C.
Adams, T.
Addesso, P.
Adhikari, R.
Adya, V.
Affeldt, C.
Afrough, M.
Agarwal, B.
Agatsuma, K.
Aggarwal, N.
Aguiar, O.
Aiello, L.
Ain, A.
Ajith, P.
Allen, B.
et al.
Citation: Physical Review D, 2017; 95(12):122003-1-122003-20
Issue Date: 2017
ISSN: 2470-0010
Statement of
B. P. Abbott … F. Acernese … Miftar Ganija … Won Kim … David J. Ottaway … Peter J. Veitch … et al.
Abstract: Results are presented from a semicoherent search for continuous gravitational waves from the brightest low-mass X-ray binary, Scorpius X-1, using data collected during the first Advanced LIGO observing run. The search combines a frequency domain matched filter (Bessel-weighted F-statistic) with a hidden Markov model to track wandering of the neutron star spin frequency. No evidence of gravitational waves is found in the frequency range 60–650 Hz. Frequentist 95% confidence strain upper limits, h95%0=4.0×10−25, 8.3×10−25, and 3.0×10−25 for electromagnetically restricted source orientation, unknown polarization, and circular polarization, respectively, are reported at 106 Hz. They are ≤10 times higher than the theoretical torque-balance limit at 106 Hz.
Rights: © 2017 American Physical Society
RMID: 0030072612
DOI: 10.1103/PhysRevD.95.122003
Appears in Collections:Physics publications

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