Search for gravitational waves from low mass compact binary coalescence in 186 days of LIGO’s fifth science run (original) (raw)
We report on a search for gravitational waves from coalescing compact binaries, of total mass between 2 and 35 M⊙, using LIGO observations between November 14, 2006 and May 18, 2007. No gravitational-wave signals were detected. We report upper limits on the rate of compact binary coalescence as a function of total mass. The LIGO cumulative 90%-confidence rate upper limits of the binary coalescence of neutron stars, black holes and black hole-neutron star systems are 1.4 × 10 −2 , 7.3 × 10 −4 and 3.6 × 10 −3 yr −1 L −1 10 respectively, where L10 is 10 10 times the blue solar luminosity.
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We report on a search for gravitational waves from coalescing compact binaries using LIGO observations between November 14, 2006 and May 18, 2007. This search targeted binaries with total mass between 2 and 35 M⊙ and a minimum component mass of 1 M⊙. No gravitational-wave signals were detected during our observations and so we report upper limits on the rate of compact binary coalescence as a function of the binary's mass. Assuming a compact binary object population with a Gaussian mass distribution representing binary neutron star systems, binary black hole systems and black hole-neutron star binary systems, we find the 90%-confidence upper limit on the rate of coalescences to be 1.4 × 10 −2 yr −1 L −1 10 , 7.3 × 10 −4 yr −1 L −1 10 , and 3.6 × 10 −3 yr −1 L −1 10 respectively, where L10 is 10 10 times the blue solar luminosity. PACS numbers: 95.85.Sz, 04.80.Nn, 07.05.Kf, 97.60.Jd, 97.60.Lf, 97.80.-d
Search for gravitational waves from low mass binary coalescences in the first year of LIGO’s S5 data
Physical Review D, 2009
We have searched for gravitational waves from coalescing low mass compact binary systems with a total mass between 2 and 35 M⊙ and a minimum component mass of 1 M⊙ using data from the first year of the fifth science run (S5) of the three LIGO detectors, operating at design sensitivity. Depending on mass, we are sensitive to coalescences as far as 150 Mpc from the Earth. No gravitational wave signals were observed above the expected background. Assuming a compact binary objects population with a Gaussian mass distribution representing binary neutron star systems, black hole-neutron star binary systems, and binary black hole systems, we calculate the 90%-confidence upper limit on the rate of coalescences to be 3.9 × 10 −2 yr −1 L −1 10 , 1.1 × 10 −2 yr −1 L −1 10 , and 2.5 × 10 −3 yr −1 L −1 10 respectively, where L10 is 10 10 times the blue solar luminosity. We also set improved upper limits on the rate of compact binary coalescences per unit blue-light luminosity, as a function of mass.
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