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, h(0)(95%) = 4.0 x 10(-25), 8.3 x 10(-25), and 3.0 x 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

Search for gravitational waves from Scorpius X-1 in the first Advanced LIGO observing run with a hidden Markov model / Abbott, B. .P., Abbott, R., Abbott, T. .D., Acernese, F., Ackley, K., Adams, C., Adams, T., Addesso, P., Adhikari, R. .X., Adya, V. .B., Affeldt, C., Afrough, M., Agarwal, B., Agatsuma, K., Aggarwal, N., Aguiar, O. .D., Aiello, L., Ain, A., Ajith, P., Allen, B., et al.. - In: PHYSICAL REVIEW D. - ISSN 2470-0010. - 95:12(2017), pp. 1-20. [10.1103/PhysRevD.95.122003]

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

Allocca, A.;CALLONI, ENRICO;DE LAURENTIS, MARTINA;DE ROSA, ROSARIO;DI GIROLAMO, TRISTANO;GARUFI, FABIO;MILANO, LEOPOLDO;Pinto, I.  .m.;Sequino, V.;
2017

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, h(0)(95%) = 4.0 x 10(-25), 8.3 x 10(-25), and 3.0 x 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
2017
Search for gravitational waves from Scorpius X-1 in the first Advanced LIGO observing run with a hidden Markov model / Abbott, B. .P., Abbott, R., Abbott, T. .D., Acernese, F., Ackley, K., Adams, C., Adams, T., Addesso, P., Adhikari, R. .X., Adya, V. .B., Affeldt, C., Afrough, M., Agarwal, B., Agatsuma, K., Aggarwal, N., Aguiar, O. .D., Aiello, L., Ain, A., Ajith, P., Allen, B., et al.. - In: PHYSICAL REVIEW D. - ISSN 2470-0010. - 95:12(2017), pp. 1-20. [10.1103/PhysRevD.95.122003]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11588/681819
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