First all-sky search for continuous gravitational waves from unknown sources in binary systems

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dc.contributor.author Sengupta, Anand
dc.date.accessioned 2015-11-04T14:01:37Z
dc.date.available 2015-11-04T14:01:37Z
dc.date.issued 2014-09
dc.identifier.citation Sengupta, Anand et al., "First all-sky search for continuous gravitational waves from unknown sources in binary systems", Physical Review D, DOI: 10.1103/PhysRevD.90.062010, vol. 90, vol. 6, Sep. 2014. en_US
dc.identifier.uri http://dx.doi.org/10.1103/PhysRevD.90.062010
dc.identifier.uri https://repository.iitgn.ac.in/handle/123456789/1959
dc.description.abstract We present the first results of an all-sky search for continuous gravitational waves from unknown spinning neutron stars in binary systems using LIGO and Virgo data. Using a specially developed analysis program, the TwoSpect algorithm, the search was carried out on data from the sixth LIGO science run and the second and third Virgo science runs. The search covers a range of frequencies from 20 Hz to 520 Hz, a range of orbital periods from 2 to ∼2,254  h and a frequency- and period-dependent range of frequency modulation depths from 0.277 to 100 mHz. This corresponds to a range of projected semimajor axes of the orbit from ∼0.6×10−3  ls to ∼6,500  ls assuming the orbit of the binary is circular. While no plausible candidate gravitational wave events survive the pipeline, upper limits are set on the analyzed data. The most sensitive 95% confidence upper limit obtained on gravitational wave strain is 2.3×10−24 at 217 Hz, assuming the source waves are circularly polarized. Although this search has been optimized for circular binary orbits, the upper limits obtained remain valid for orbital eccentricities as large as 0.9. In addition, upper limits are placed on continuous gravitational wave emission from the low-mass x-ray binary Scorpius X-1 between 20 Hz and 57.25 Hz. en_US
dc.description.statementofresponsibility by Anand Sengupta
dc.format.extent vol. 90, vol. 6,
dc.language.iso en_US en_US
dc.publisher American Physical Society en_US
dc.subject First all-sky search en_US
dc.subject Continuous gravitational waves en_US
dc.subject Unknown sources en_US
dc.subject Binary systems en_US
dc.title First all-sky search for continuous gravitational waves from unknown sources in binary systems en_US
dc.type Article en_US
dc.relation.journal Physical Review D


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