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LIGO Project Status Update at Caltech PAC Meeting

Detailed update on LIGO project progress, sensitivity, data analysis, and future goals presented at the PAC Meeting at Caltech. Includes international collaboration, data results, and plans for Advanced LIGO installation.

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LIGO Project Status Update at Caltech PAC Meeting

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  1. Statusof LIGO Upper limits on known pulsar ellipticities Barry Barish PAC Meeting Caltech 3-June-04

  2. Goals and Priorities • Interferometer performance • Integrate commissioning and data taking consistent with obtaining one year of integrated data at h = 10-21 by end of 2006 • Physics results from LIGO I • Initial upper limit results by early 2003 • First search results in 2005 • Reach LIGO I goals by 2007 • Advanced LIGO • Prepare advanced LIGO proposal this fall • International collaboration and broad LSC participation • Advanced LIGO installation beginning by 2007 PAC Mtg -- Caltech

  3. LIGO Sensitivity Evolution Hanford 4km Interferometer Dec 01 Nov 03 PAC Mtg -- Caltech

  4. Best Performance to Date …. Range ~ 6 Mpc PAC Mtg -- Caltech

  5. LIGO Commissioning and Science Timeline Now PAC Mtg -- Caltech

  6. Goals and Priorities • Interferometer performance • Integrate commissioning and data taking consistent with obtaining one year of integrated data at h = 10-21 by end of 2006 • Physics results from LIGO I • Initial upper limit results by early 2003 • First search results in 2004 • Reach LIGO I goals by 2007 • Advanced LIGO • Prepare advanced LIGO proposal this fall • International collaboration and broad LSC participation • Advanced LIGO installation beginning by 2007 PAC Mtg -- Caltech

  7. Sensitivity during S1 • LIGO S1 Run • ---------- • “First • Upper Limit • Run” • 23 Aug–9 Sept 2002 • 17 days • All interferometers in power recycling configuration LHO 2Km LHO 4Km LLO 4Km GEO data exchange for S1 RUN PAC Mtg -- Caltech

  8. S1 “Methodology” Papers • Detector Paper • “Detector Description and Performance for the First Coincidence Observations between LIGO and GEO” • Periodic Sources • “Setting upper limits on the strength of periodic gravitational waves using the first science data from the GEO600 and LIGO detectors” • Inspiral Sources • “Analysis of LIGO data for gravitational waves from binary neutron stars” • Stochastic Sources • “Analysis of First LIGO Science Data for Stochastic Gravitational Waves” • Burst Sources • “First upper limits on gravitational wave bursts from LIGO” PAC Mtg -- Caltech

  9. LIGO Sensitivity -- L1 S1 May 01 First Science Run 17 days - Sept 02 Jan 03 S2 Second Science Run 59 days - April 03 PAC Mtg -- Caltech

  10. Science Runs A Measure of Progress Milky Way Virgo Cluster Andromeda NN Binary Inspiral Range E8 ~ 5 kpc S1 ~ 100 kpc S2 ~ 0.9Mpc S3 ~ 3 Mpc Design~ 18 Mpc PAC Mtg -- Caltech

  11. Post S3 at LLOactive external seismic External Pre-Isolators BSC HAM PAC Mtg -- Caltech

  12. Advanced LIGOproposed in early 2003 Multiple Suspensions Active Seismic Sapphire Optics Higher Power Laser PAC Mtg -- Caltech

  13. AdLIGO Status as a Project • Large Projects at NSF are funded through MREF account (projects with total cost of more than ~10% of the annual division budget) • A long list of possible MREF projects (23) are under discussion by all the directorates and the list changes with time. • A shorter list of reviewed projects (11) are discussed annually with the NSB annually (a more stable list, but not prioritized) • The Assistant Directors advise the Directorate (who decides) what and when to bring projects forward to NSB for consideration and approval • Next big step is to obtain NSB approval and then inclusion in future MREF budgets to OMB (FY06?) LIGO PAC Mtg -- Caltech

  14. LIGO Outreach Program $5M for 5 years LSC Collaborating Groups are invited to participate in the LIGO Laboratory Outreach Activities

  15. LIGO Outreach Collaboration • LIGO provides the science and facilities • Exploratorium exhibits the science • Southern University brings LIGO science to science education • Louisiana Board of Regents extends our program through public education PAC Mtg -- Caltech

  16. Site Plan BUS & CAR PARKING staging lot LVEA OSB Existing unpaved site adjacent to LLO conference facility & temporary exhibit space Erect new building with direct access to auditorium foyer OUTREACHCENTER PAC Mtg -- Caltech

  17. Conclusions • S1 Analysis Complete. Five Papers approved for publication. • S2 Data Run was ~x10 better sensitivity and ~x4 more running time. Data analysis is near complete and we plan to present the results at GR-17 in Dublin in July. LSC Data Analysis Meeting this weekend • S3 Data Run: Three interferometers with extragalactic sensitivity. Analysis not yet underway • LIGO is shutdown to install L1 seismic mitigation • Advanced LIGO was proposed in Jan 03 and was well reviewed. It is now awaiting approval by the NSB. • Short term goals: • Commission Seismic Retrofit • Improve sensitivity and reliability to near design and initiate the extended LIGO I search run. PAC Mtg -- Caltech

  18. This Meeting • Review the Status of the LIGO Data Analysis, including new results • Review Status of Commissioning and Seismic Retrofit • Discussion and Advice on Possible LIGO Laboratory Management Structural Changes PAC Mtg -- Caltech

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