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  • B Abbott, R Abbott, +401 authors A G Lyne
  • Physical review letters
  • 2005
We place direct upper limits on the amplitude of gravitational waves from 28 isolated radio pulsars by a coherent multidetector analysis of the data collected during the second science run of the LIGO interferometric detectors. These are the first direct upper limits for 26 of the 28 pulsars. We use coordinated radio observations for the first time to build(More)
C. Messenger, H. J. Bulten, S. G. Crowder, V. Dergachev, D. K. Galloway, E. Goetz, R. J. G. Jonker, P. D. Lasky, G. D. Meadors, A. Melatos, S. Premachandra, K. Riles, L. Sammut, E. H. Thrane, J. T. Whelan, and Y. Zhang School of Physics and Astronomy, Cardiff University, Queen’s Buildings, The Parade CF24 3AA, United Kingdom SUPA, School of Physics and(More)
  • I Juricic, Al G Goldhaber, +51 authors Harvard
  • 1988
(4 and DEAC02-76ER03064 (Harvard). Present address: Columbia University, New York, NY 10027. (*) Present address: University of Chicago, Chicago, IL 60637. (4 Present address: Harvard University, Cambridge, MA 02138. (4 Present address: Therma-Wave Corp., Fremont, CA 94539. (4 Present address: Brookhaven National Laboratory, Upton, NY 11973. (f) Present(More)
  • B Abbott, R Abbott, +301 authors J Zweizig
  • Physical review letters
  • 2005
The Laser Interferometer Gravitational-Wave Observatory has performed a third science run with much improved sensitivities of all three interferometers. We present an analysis of approximately 200 hours of data acquired during this run, used to search for a stochastic background of gravitational radiation. We place upper bounds on the energy density stored(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)
We report high-precision absolute distance and vibration measurements performed with frequency scanned interferometry using a pair of single-mode optical fibers. Absolute distance was determined by counting the interference fringes produced while scanning the laser frequency. A high-finesse Fabry-Perot interferometer was used to determine frequency changes(More)
In this paper, we report on new high-precision absolute distance measurements performed with frequency scanned interferometry using a pair of single-mode optical fibers. Absolute distances were determined by counting the interference fringes produced while scanning the frequencies of the two chopped lasers. High-finesse Fabry–Perot interferometers were used(More)