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  • B Abbott, R Abbott, R Adhikari, B Allen, R Amin, S B Anderson +361 others
  • 2003
For 17 days in August and September 2002, the LIGO and GEO interferometer gravitational wave detectors were operated in coincidence to produce their first data for scientific analysis. Although the detectors were still far from their design sensitivity levels, the data can be used to place better upper limits on the flux of gravitational waves incident on(More)
A stochastic background of gravitational waves is expected to arise from a superposition of a large number of unresolved gravitational-wave sources of astrophysical and cosmological origin. It should carry unique signatures from the earliest epochs in the evolution of the Universe, inaccessible to standard astrophysical observations. Direct measurements of(More)
We present a LIGO search for short-duration gravitational waves (GWs) associated with soft gamma ray repeater (SGR) bursts. This is the first search sensitive to neutron star f modes, usually considered the most efficient GW emitting modes. We find no evidence of GWs associated with any SGR burst in a sample consisting of the 27 Dec. 2004 giant flare from(More)
(Affiliations can be found after the references in the electronic version) ABSTRACT Aims. A transient astrophysical event observed in both gravitational wave (GW) and electromagnetic (EM) channels would yield rich scientific rewards. A first program initiating EM follow-ups to possible transient GW events has been developed and exercised by the LIGO and(More)
  • B Abbott, R Abbott, R Adhikari, P Ajith, B Allen, G Allen +325 others
  • 2009
Citation Abbott, B. et al. (LIGO Scientific Collaboration). "Observation of a kilogram-scale oscillator near its quantum ground state. The MIT Faculty has made this article openly available. Please share how this access benefits you. Your story matters. Abstract. We introduce a novel cooling technique capable of approaching the quantum ground state of a(More)
We report on a search for gravitational-wave bursts in data from the three LIGO interferometric detectors during their third science run. The search targets sub-second bursts in the frequency range 100–1100 Hz for which no waveform model is assumed and has a sensitivity in terms of the root-sum-square (rss) strain amplitude of h rss ∼ 10 −20 Hz −1/2. No(More)
We present results from a search for gravitational-wave bursts in the data collected by the LIGO data are analyzed when at least two of the three LIGO-Virgo detectors are in coincident operation, with a total observation time of 207 days. The analysis searches for transients of duration 1 s over the frequency band 64–5000 Hz, 5 without other assumptions on(More)
Abadie et al. ABSTRACT We present direct upper limits on continuous gravitational wave emission from the Vela pulsar using data from the Virgo detector's second science run. These upper limits have been obtained using three independent methods that assume the gravitational wave emission follows the radio timing. Two of the methods produce frequentist upper(More)
  • B Abbott, R Abbott, R Adhikari, P Ajith, B Allen, G Allen +339 others
  • 2008
In gravitational-wave detection, special emphasis is put onto searches that focus on cosmic events detected by other types of astrophysical observatories. The astrophysical triggers, e.g. from γ-ray and x-ray satellites, optical telescopes and neutrino observatories, provide a trigger time for analyzing gravitational-wave data coincident with the event. In(More)
We describe a method for searching for transient gravitational waves associated with Soft Gamma-ray Repeater flares or other burst-like events using data collected by interferometric gravitational wave detectors. The method as implemented can be used to analyze data from either a single detector or from two detectors coherently. The excess power type(More)