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Status of LIGO

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

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Status of LIGO

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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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