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  • LIGO - Laser Interferometer Gravitational Wave Observatory
    Funded by National Science Foundation LIGO Celebrates Successful S5 Run LHO receives the first Science Education Advocate Awards of Washington State LASER Leadership and Assistance for Science Education Reform LIGO Sheds Light on Cosmic Event Science and Education Center Opens at LIGO Livingston Einstein Home uses computer time donated by computer owners all over the world to process data from gravitational wave detectors Einstein s Messengers An NSF movie about

    Original URL path: http://www.ligo.caltech.edu/ (2015-06-02)
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  • About LIGO
    About LIGO The page has moved If your browser does not automatically redirect you follow this link

    Original URL path: http://www.ligo.caltech.edu/LIGO_web/about/ (2015-06-02)
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  • LIGO Laboratory Home Page
    Observational Results LIGO Technical Papers Theses Acronyms AsBuilt Drawings Document Control Center old Document Search Employment Postdoctoral Positions Programs for Students Visitors Program and Forms Hanford Electronic Logs Hanford Observatory Livingston Electronic Logs Livingston Observatory CaJAGWR Calendar of CIT LIGO Seminars Past CIT LIGO Seminars MIT Lab Pages Next MIT LIGO Seminar Past MIT LIGO Seminars Research Bulletin Boards LIGO Email Archives Conference Proceedings on Behalf of the LSC LIGO

    Original URL path: http://www.ligo.caltech.edu/cit_local.html (2015-06-02)
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  • LIGO's Fifth Science Run
    run a great success Considered over the entire run the average single interferometer duty factor was 73 6 percent the average two site coincident duty factor was 59 4 percent and the average triple interferometer duty factor was 52 5 percent Performance gains mounted over the course of the run S5 began with an average triple interferometer duty cycle of just under 50 percent but in its final months was topping 67 percent an increase that demonstrates our ability to push the interferometers to ever better performance For those periods when the instruments did suffer an unexpected loss of lock environmental disturbances such as large storms major earthquakes and cultural activities like trucking logging and public utility maintenance were the main sources of interruption Figure 1 Displacement Sensitivity of the LIGO Interferometers Figure 1 above shows the displacement sensitivity of the three LIGO interferometers across the gravitational wave frequency band of interest to LIGO The solid curve is the optimum sensitivity predicted in the 1995 Science Requirements Document The S5 run was a significant advance beyond the four science runs that preceded it LIGO began S5 in November 2005 at sensitivities over most frequencies equal to our design sensitivities goal Then in January 2006 our colleagues at the GEO600 interferometer facility near Hannover Germany joined us for periods of full science mode coincident operations Later on 18 May 2007 the Virgo collaboration in Cascina Italy brought its three kilometer interferometer on line for the final portion of S5 At that point LIGO and Virgo began collecting and analyzing data together Jay Marx explained This represented a historic achievement in forging a truly global network of gravitational wave observatories Preliminary Results of Astrophysical Significance The sensitivity of the interferometers as well as the large volume and high quality of science data that S5 produced has already led to a number of significant astrophysical results for the LIGO Scientific Collaboration such as beating the gravitational wave spindown limit for the Crab Pulsar said David Reitze the LSC Spokesperson And we haven t yet looked at the entire data set so there is more to come Preliminary results from a few high profile searches using a fraction of the data and a number of upper limits of astrophysical significance have been presented at recent conferences Analysis of the full data is underway some segments in partnership with our Virgo colleagues and papers will be prepared for release and publication in the coming months We anticipate search results from a number of gravitational wave sources inspiraling pairs of neutron stars and or black holes burst sources such as supernovae periodic sources such as pulsars and possible stochastic backgrounds due to multiple diffuse sources or relic gravitational waves from the big bang S5 demonstrated not only that the instruments can perform as required but that the LIGO Scientific Collaboration has honed its ability to analyze the data in an effective and timely manner and to publish results of astrophysical significance LIGO s Next Phase LIGO

    Original URL path: http://www.ligo.caltech.edu/~ll_news/s5_news/s5article.htm (2015-06-02)
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  • LIGO News and Highlights
    broadband cable DSL 56k modem Probing the Universe for Gravity Waves A First Look at LIGO February 2003 LIGO TAMA Joint Data Analysis Agreement December 2002 Barry Barish nominated to National Science Board October 2002 The S2 Science Run Schedule October 2002 LIGO other GW projects featured in CERN Courier September 2002 LIGO featured on National Public Radio and in Newsday September 2002 How Many Space Dimensions Does the Universe Have video of Eric Adelberger s public lecture at LSC Meeting August 2002 Kip Thorne LIGO featured in Los Angeles Times August 2002 Success at the E7 Run February 2002 Hanford Earthquake February 2001 First Lock October 2000 LIGO featured in new book Einstein s Unfinished Symphony by Marcia Bartusiak LIGO featured in the October 2000 issues of Sky Telescope and Astronomy magazines LIGO Listens to the Universe Simulations of Gravitational Waves from LIGO I October 2000 Marcel Grossman Conference Transparencies of LSC Presentations July 2000 Brushfire at Hanford Observatory June 2000 LIGO Inauguration Videos Photos November 1999 Amaldi 99 Proceedings NSF s fiscal 1999 budget request Highlights and Press Releases 1994 1995 LIGO Meetings PAC LSC NSF Reviews LIGO Newsletter 2008 March 2007 March July 2006 Apr 2005 Mar

    Original URL path: http://www.ligo.caltech.edu/LIGO_web/news/ (2015-06-02)
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  • LIGO Press Kit
    contacts LIGO fact sheet LIGO chronology LIGO photos copy California Institute of Technology LIGO is supported by the National Science Foundation web

    Original URL path: http://www.ligo.caltech.edu/LIGO_web/PR/scripts/ (2015-06-02)
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  • LIGO Directors and Meeting Calendars
    Vacation Executive Committee Meeting LIGO Operations Business Office CIT Travel Vacation Conference Rooms Meeting Room Usage All Rooms Downs 1st floor Downs 2nd floor Downs 3rd floor Science Conference Room Small Science Conference Room Sloan Annex West Bridge 2nd floor

    Original URL path: http://www.ligo.caltech.edu/LIGO_web/calendars/ (2015-06-02)
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  • Travel to LIGO Locations
    of Technology Caltech LIGO Travel Information portal Maps directions from area airports area transit traffic report local accommodations weather etc Massachusetts Institute of Technology How to get to MIT How to get to the MIT LIGO Lab in building NW17

    Original URL path: http://www.ligo.caltech.edu/LIGO_web/sidebar/travel.html (2015-06-02)
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