We report on a comprehensive all-sky search for periodic gravitational waves in the frequency band100–1500 Hz and with a frequency time derivative in the range of½−1.18;þ1.00 ×10−8Hz=s. Such asignal could be produced by a nearby spinning and slightly nonaxisymmetric isolated neutron star in ourgalaxy. This search uses the data from the initial LIGO sixth science run and covers a larger parameterspace with respect to any past search. ALoosely Coherentdetection pipeline was applied to follow up weakoutliers in both Gaussian (95% recovery rate) and non-Gaussian (75% recovery rate) bands. Nogravitational wave signals were observed, and upper limits were placed on their strength. Our smallest upper limit on worst-case (linearly polarized) strain amplitudeh0is9.7×10−25near 169 Hz, while at thehigh end of our frequency range we achieve a worst-case upper limit of5.5×10−24. Both cases refer to allsky locations and entire range of frequency derivative values

Comprehensive all-sky search for periodic gravitational waves in the sixth science run LIGO data / Abbott, B.P., Abbott, R., Abbott, T.D., Abernathy, M.R., Acernese, F., Ackley, K., Adams, C., Adams, T., Addesso, P., Adhikari, R.X., Adya, V.B., Affeldt, C., Agathos, M., Agatsuma, K., Aggarwal, N., Aguiar, O.D., Aiello, L., Ain, A., Ajith, P., Allen, B., et al.. - In: PHYSICAL REVIEW D. - ISSN 2470-0010. - 94:4(2016). [10.1103/PhysRevD.94.042002]

Comprehensive all-sky search for periodic gravitational waves in the sixth science run LIGO data

Mangano, V.;Di Giovanni, M.
2016-01-01

Abstract

We report on a comprehensive all-sky search for periodic gravitational waves in the frequency band100–1500 Hz and with a frequency time derivative in the range of½−1.18;þ1.00 ×10−8Hz=s. Such asignal could be produced by a nearby spinning and slightly nonaxisymmetric isolated neutron star in ourgalaxy. This search uses the data from the initial LIGO sixth science run and covers a larger parameterspace with respect to any past search. ALoosely Coherentdetection pipeline was applied to follow up weakoutliers in both Gaussian (95% recovery rate) and non-Gaussian (75% recovery rate) bands. Nogravitational wave signals were observed, and upper limits were placed on their strength. Our smallest upper limit on worst-case (linearly polarized) strain amplitudeh0is9.7×10−25near 169 Hz, while at thehigh end of our frequency range we achieve a worst-case upper limit of5.5×10−24. Both cases refer to allsky locations and entire range of frequency derivative values
2016
Comprehensive all-sky search for periodic gravitational waves in the sixth science run LIGO data / Abbott, B.P., Abbott, R., Abbott, T.D., Abernathy, M.R., Acernese, F., Ackley, K., Adams, C., Adams, T., Addesso, P., Adhikari, R.X., Adya, V.B., Affeldt, C., Agathos, M., Agatsuma, K., Aggarwal, N., Aguiar, O.D., Aiello, L., Ain, A., Ajith, P., Allen, B., et al.. - In: PHYSICAL REVIEW D. - ISSN 2470-0010. - 94:4(2016). [10.1103/PhysRevD.94.042002]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11388/353684
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