Publications (48)9.12 Total impact
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Article: Einstein@Home search for periodic gravitational waves in early S5 LIGO data
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ABSTRACT: This paper reports on an all-sky search for periodic gravitational waves from sources such as deformed isolated rapidly spinning neutron stars. The analysis uses 840 hours of data from 66 days of the fifth LIGO science run (S5). The data were searched for quasimonochromatic waves with frequencies f in the range from 50 to 1500 Hz, with a linear frequency drift f˙ (measured at the solar system barycenter) in the range -f/τ<f˙<0.1f/τ, for a minimum spin-down age τ of 1000 years for signals below 400 Hz and 8000 years above 400 Hz. The main computational work of the search was distributed over approximately 100 000 computers volunteered by the general public. This large computing power allowed the use of a relatively long coherent integration time of 30 hours while searching a large parameter space. This search extends Einstein@Home’s previous search in LIGO S4 data to about 3 times better sensitivity. No statistically significant signals were found. In the 125-225 Hz band, more than 90% of sources with dimensionless gravitational-wave strain tensor amplitude greater than 3×10^-24 would have been detected.Physical Review D 01/2013; 80(4):042003. · 4.56 Impact Factor -
Article: First all-sky upper limits from LIGO on the strength of periodic gravitational waves using the Hough transform
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ABSTRACT: We perform a wide parameter-space search for continuous gravitational waves over the whole sky and over a large range of values of the frequency and the first spin-down parameter. Our search method is based on the Hough transform, which is a semicoherent, computationally efficient, and robust pattern recognition technique. We apply this technique to data from the second science run of the LIGO detectors and our final results are all-sky upper limits on the strength of gravitational waves emitted by unknown isolated spinning neutron stars on a set of narrow frequency bands in the range 200-400Hz. The best upper limit on the gravitational-wave strain amplitude that we obtain in this frequency range is 4.43×10e-23.Physical Review D 01/2013; 72(10):102004. · 4.56 Impact Factor -
Article: Analysis of first LIGO science data for stochastic gravitational waves
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Article: All-sky search for gravitational-wave bursts in the first joint LIGO-GEO-Virgo run
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Article: Search for gravitational waves from compact binary coalescence in LIGO and Virgo data from S5 and VSR1
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ABSTRACT: We report the results of the first search for gravitational waves from compact binary coalescence using data from the Laser Interferometer Gravitational-Wave Observatory and Virgo detectors. Five months of data were collected during the Laser Interferometer Gravitational-Wave Observatory's S5 and Virgo's VSR1 science runs. The search focused on signals from binary mergers with a total mass between 2 and 35M(circle dot). No gravitational waves are identified. The cumulative 90%-confidence upper limits on the rate of compact binary coalescence are calculated for nonspinning binary neutron stars, black hole-neutron star systems, and binary black holes to be 8: 7 X 10(-3) yr(-1) L-10(-1), 2.2 X 10(-3) yr(-1) L-10(-1), and 4.4 X 10(-4) yr(-1) L-10(-1), respectively, where L-10 is 10(10) times the blue solar luminosity. These upper limits are compared with astrophysical expectations.Physical Review D. -
Article: Predictions for the rates of compact binary coalescences observable by ground-based gravitational-wave detectors
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Article: Search for gravitational waves from low mass binary coalescences in the first year of LIGO's S5 data
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Article: An upper limit on the stochastic gravitational-wave background of cosmological origin
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Article: Search for gravitational waves from low mass compact binary coalescence in 186 days of LIGO's fifth science run
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Article: SEARCH FOR GRAVITATIONAL-WAVE BURSTS ASSOCIATED WITH GAMMA-RAY BURSTS USING DATA FROM LIGO SCIENCE RUN 5 AND VIRGO SCIENCE RUN 1
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Article: First cross-correlation analysis of interferometric and resonant-bar gravitational-wave data for stochastic backgrounds
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Article: Upper limits on gravitational wave emission from 78 radio pulsars
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Article: SEARCHES FOR GRAVITATIONAL WAVES FROM KNOWN PULSARS WITH SCIENCE RUN 5 LIGO DATA
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Article: Stacked Search For Gravitational Waves From The 2006 Sgr 1900+14 Storm
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Article: First LIGO search for gravitational wave bursts from cosmic (super)strings
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Article: Upper limits on gravitational wave emission from 78 radio pulsars (vol 76, art no 042001, 2007)
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Article: First cross-correlation analysis of interferometric and resonant-bar gravitational-wave data for stochastic backgrounds (vol 76, art no 022001, 2007)
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Article: Upper limit map of a background of gravitational waves (vol 76, art no 082003, 2007)
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Article: Search for gravitational waves associated with 39 gamma-ray bursts using data from the second, third, and fourth LIGO runs
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Article: All-sky search for periodic gravitational waves in LIGO S4 data
