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Search for gravitational waves from Scorpius X-1 in the first Advanced LIGO observing run with a hidden Markov model

Altin, Paul; Chow, Jong; Mansell, Georgia; McClelland, David; McManus, David; McRae, Terry; Nguyen, Thanh; Qin, Jiayi; Rabeling, David; Abbott, B.; Abbott, Robert; Abbott, T.; Ackley, K.; Adhikari, Rana; Barish, Barry; Barsotti, L.; Basti, A.; Berger, B. K.; Bilenko, I. A.; Billingsley, G.; Blackburn, James Kent; Blair, David Gerald; Bork, R.; Braginsky, V.; Charlton, Philip; Coward, D.; Dhurandhar, S.; Ehrens, P.; Etzel, T.; Fairhurst, S.; Favata, Marc; Frei, Z.; Fritschel, Peter; Gehrels, N.; Genin, E.; Giaime, J.; Grado, A.; Heptonstall, A.; Howell, E.; Huttner, S. H.; Korth, W. Zach; Kozak, D.; Lasky, P. D.; Lazzarini, A.; Lockerbie, N. A.; Maros, E.; Matichard, F.; Mavalvala, Nergis; Melatos, Andrew; Meshkov, S.; Oelker, E.; Ottaway, D. J.; Pedraza, M.; Penn, S.; Reitze, D.; Yap, Min Jet; Ward, Robert; Slagmolen, Bram; Shaddock, Daniel; Scott, Susan M.


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,...[Show more]

CollectionsANU Research Publications
Date published: 2017
Type: Journal article
Source: Physical Review D
DOI: 10.1103/PhysRevD.95.122003


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