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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

Statusof LIGO

Upper limits on known

pulsar ellipticities

Barry Barish

PAC Meeting

Caltech

3-June-04


Goals and priorities
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


Status of ligo

LIGO Sensitivity Evolution

Hanford 4km Interferometer

Dec 01

Nov 03

PAC Mtg -- Caltech


Status of ligo

Best Performance to Date ….

Range ~ 6 Mpc

PAC Mtg -- Caltech



Goals and priorities1
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


Sensitivity during s1
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


S1 methodology papers
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


Status of ligo

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


Science runs
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


Post s3 at llo active external seismic
Post S3 at LLOactive external seismic

External Pre-Isolators

BSC

HAM

PAC Mtg -- Caltech


Advanced ligo proposed in early 2003
Advanced LIGOproposed in early 2003

Multiple Suspensions

Active Seismic

Sapphire Optics

Higher Power Laser

PAC Mtg -- Caltech


Status of ligo

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


Ligo outreach program

LIGO Outreach Program

$5M for 5 years

LSC Collaborating Groups are invited to participate in the LIGO Laboratory Outreach Activities


Ligo outreach collaboration
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


Site plan
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


Conclusions
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


This meeting
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