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|Scopus||Web of Science®||Altmetric|
|Title:||Search for gravitational waves from Scorpius X-1 in the first Advanced LIGO observing run with a hidden Markov model|
|Citation:||Physical Review D, 2017; 95(12):122003-1-122003-20|
|Publisher:||AMER PHYSICAL SOC|
|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|
|Appears in Collections:||Physics publications|
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