Keith Riles

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Junior University, nor their employees, nor their respective contractors, subcontractors, or their employees, makes any warranty, express or implied , or assumes any liability of responsibility for accuracy, completeness or usefulness of any information, apparatus, product or process disclosed, or represents that its use will not infringe privately owned(More)
  • 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)
  • 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)
  • 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)
Four data sets collected with the MARK II detector during its operation at the SPEAR and PEP e+e-storage rings are used to study the Bose-Einstein correlation between pairs and triplets of like sign charged pions. The data sets represent four different regions of energy available for hadron production: the .7/lc, at ,/Z = 3.095 GeV, typical hadronic energy(More)