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

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dc.contributor.author Sengupta, Anand
dc.date.accessioned 2016-10-10T19:46:39Z
dc.date.available 2016-10-10T19:46:39Z
dc.date.issued 2016-08
dc.identifier.citation Sengupta, Anand et al., “Comprehensive all-sky search for periodic gravitational waves in the sixth science run LIGO data”, Physical Review D, DOI: 10.1103/PhysRevD.94.042002, vol. 94, no. 4, Aug. 2016. en_US
dc.identifier.issn 1550-7998
dc.identifier.issn 1550-2368
dc.identifier.uri https://repository.iitgn.ac.in/handle/123456789/2482
dc.identifier.uri http://dx.doi.org/10.1103/PhysRevD.94.042002
dc.description.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. en_US
dc.description.statementofresponsibility by Sengupta, Anand et al.
dc.format.extent Vol. 94, no. 4
dc.language.iso en_US en_US
dc.publisher American Physical Society en_US
dc.title Comprehensive all-sky search for periodic gravitational waves in the sixth science run LIGO data en_US
dc.type Article en_US
dc.relation.journal Physical Review D


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