Title
Comprehensive All-Sky Search for Periodic Gravitational Waves In the Sixth Science Run LIGO Data
Document Type
Article
Publication Date
8-15-2016
Journal / Book Title
Physical Review D
Abstract
We report on a comprehensive all-sky search for periodic gravitational waves in the frequency band 100-1500 Hz and with a frequency time derivative in the range of [-1.18,+1.00]×10-8 Hz/s. Such a signal could be produced by a nearby spinning and slightly nonaxisymmetric isolated neutron star in our galaxy. This search uses the data from the initial LIGO sixth science run and covers a larger parameter space with respect to any past search. A Loosely Coherent detection pipeline was applied to follow up weak outliers in both Gaussian (95% recovery rate) and non-Gaussian (75% recovery rate) bands. No gravitational wave signals were observed, and upper limits were placed on their strength. Our smallest upper limit on worst-case (linearly polarized) strain amplitude h0 is 9.7×10-25 near 169 Hz, while at the high end of our frequency range we achieve a worst-case upper limit of 5.5×10-24. Both cases refer to all sky locations and entire range of frequency derivative values.
DOI
10.1103/PhysRevD.94.042002
MSU Digital Commons Citation
Abbott, B. P.; Abbott, R.; Abbott, T. D.; Abernathy, M. R.; Acernese, F.; Ackley, K.; Adams, C.; Adams, T.; Favata, Marc; and Ghosh, Shaon, "Comprehensive All-Sky Search for Periodic Gravitational Waves In the Sixth Science Run LIGO Data" (2016). Department of Physics and Astronomy Faculty Scholarship and Creative Works. 26.
https://digitalcommons.montclair.edu/physics-astron-facpubs/26
Published Citation
Abbott, B. P., Abbott, R., Abbott, T. D., Abernathy, M. R., Acernese, F., Ackley, K., ... & Chao, S. (2016). Comprehensive all-sky search for periodic gravitational waves in the sixth science run LIGO data. Physical Review D, 94(4), 042002.