LIGO - G070303-01-M Update from LIGO Laboratory LIGO-Virgo Collaboration Meeting Albert Lazzarini Cascina, Italy May 22-25, 2007.

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Presentation transcript:

LIGO - G M Update from LIGO Laboratory LIGO-Virgo Collaboration Meeting Albert Lazzarini Cascina, Italy May 22-25, 2007

LIGO - G M LIGO Laboratory at Caltech 2 LIGO Laboratory Update Outline  Progress with the science run  Enhanced LIGO  Advanced LIGO  Outreach

LIGO - G M LIGO Laboratory at Caltech 3 S5 Run Status  In November 2005 began S5 …  Effective range for 1.4 M o M o neutron pair coalescence  for 4 km IFOs: ~10 Mpc  for 2 km IFO: ~ 5 Mpc  Today...  Ranges are now > 50% greater than at start of run …  H1 - up to 16 Mpc peak  L1 - up to 15 Mpc peak  H2 - almost 8 Mpc peak  Duty factors (weekly averaged) regularly exceed 80%  Virgo is now observing jointly!  SR1 -- Effective 18 May

LIGO - G M LIGO Laboratory at Caltech 4 S5: Progress to date Range trend over run Minute trends in range Histogrammed minute trends in range

LIGO - G M LIGO Laboratory at Caltech 5 S5: Progress to date Through 15 May 2007 Projected End of S5 1 Year Coincident Observation Cumulative Up-time   

LIGO - G M LIGO Laboratory at Caltech 6 S5: Progress to date Data and Computing  Lab managing 2.3PB/180M files at 4 locations.  LSC running 2 US/3 EU clusters with two new large GEO clusters being built.  NSF Physics at the Information Frontier (PIF) program has funded a 5 year of support for LIGO Data Grid (LDG). History of LIGO data transmission from sites ->CIT  As of 21 May -- LIGO-Virgo data exchange started for h(t).  File replication to all LIGO Data Grid sites  Segment Database - for quick data quality lookups and data quality modifications using V1:Hrec_veto_dataQuality

LIGO - G M LIGO Laboratory at Caltech 7 S5 beyond today Beginning of a new era for the GW community  18 May marked the beginning of joint observation with Virgo.  Culmination of more than a decade of communication, planning …  First face-to-face with Virgo-LIGO took place at CIT 1996!  First discussion of vision for a common data format that would eventually enable common analysis.  Level of cooperation and coordination is extremely high  Judged by frequency & duration of teleconferences …  Technical challenges ahead …  Addressed by joint committees to coordinate many key activities  Run planning,upgrade coordination  Data analysis  Resource management & sharing

LIGO - G M Overlay of most recent Virgo sensitivity with 2006 S5 h[f] curves for LIGO LIGO S5 Sensitivity June

LIGO - G M LIGO Laboratory at Caltech 9 S5 -- Running with Virgo Joint Run Planning Committee (JRPC) See talk later in this session  First F2F meeting of JRPC at LSC-Virgo meeting in Baton Rouge, March 2007  Second earlier today  Charged with specific short-term items:  Coordination for S5 joint running  Scenarios for post-S5 to S6 era  Bi-weekly JRPC teleconferences  Most run coordination issues settled  Progress has been made on scenarios

LIGO - G M LIGO Laboratory at Caltech 10 Beyond S5

LIGO - G M LIGO Laboratory at Caltech 11 Enhanced LIGO and S6 See talk later in this session  In 2005/2006 LIGO developed a concept to upgrade of the 4 km interferometers  Laboratory commitment to upgrade made after August 2006 internal planning review  SYNERGY WITH ADVANCED LIGO: UPGRADE WILL RETIRE RISK FOR A NUMBER OF SUBSYSTEMS  PSL, input optics, readout, seismic isolation, output mode cleaner, …  e-LIGO team in place & working on the upgrade  Designs, prototyping, demonstration of proof-of-principle  Major hardware procurements  Seismic isolation for detection system  Lasers  Thermal compensation upgrade  Main laser (PSL) upgrade to 35W using Advanced LIGO front-end  Contributed by GEO  8-month status review successfully completed 16 May

LIGO - G M LIGO Laboratory at Caltech 12 e-LIGO - The next three years  Between now and AdvLIGO, there is some time to learn and improve and detect gravitational waves…  ~Few years of hardware improvements + ~1 ½ year of observations.  Factor ~2X in noise, factor ~5X-10X in event rate.  Better to spend debugging time before AdvLIGO to understand new systems planned for AdvLIGO…  AdvLIGO is a HUGE step in terms of interferometry! 4Q ‘05 4Q ‘06 4Q ‘07 4Q ‘08 4Q ‘10 4Q ‘09 Adv LIGO S5 S6 ~2 years Other interferometers in operation (GEO, Virgo) NOW 4 yrs

LIGO - G M LIGO Laboratory at Caltech 13 eLIGO - sensitivity goal

LIGO - G M LIGO Laboratory at Caltech 14 eLIGO Hardware Design & Fabircation SiO 2 tipped e  quake stops High-power Faraday Isolator Adv.LIGO stiff active seismic isolation system Output modecleaner suspension ISC: OMC Assembly LZH Adv.LIGO laser 35W front end

LIGO - G M Advanced LIGO

LIGO - G M LIGO Laboratory at Caltech 16 Advanced LIGO  Reminder...  Second generation of detectors in LIGO  Factor ~10X in amplitude sensitivity  Factor ~4X lower frequency ‘wall’  Quantum Limited at most frequencies  Recombined Fabry-Perot Michelson  ~20X higher input power  Signal recycling  tunable  Gravitational gradient, thermal noise limits  40 kg fused silica masses  Fused silica suspension  Aggressive seismic isolation h[f] 1/Sqrt[Hz]

LIGO - G M LIGO Laboratory at Caltech 17 Advanced LIGO Status, Trajectory  Team includes many LSC members plus, important capital contributions from UK and Germany  On track to start Adv. LIGO Construction Project in FY08 (1 Oct 2007)  Final Baseline Review at NSF prior to authorization 5, 6 June 2007  Preparatory internal reviews (re)confirmed cost, schedule planning are stable  The only NSF Major Facility start in FY08 in the Office of Management and Budget request  Cost and schedule provided by LIGO, accepted by NSF & codified by OMB  Breach vacuum in 2010 (end of e-LIGO)  Start commissioning Advanced LIGO in 2013

LIGO - G M LIGO Laboratory at Caltech 18 Progress Technical advances  Full scale prototyping of mechanical systems  Tests of ‘DC readout’  Laser production  Understanding of coating scatter  Systems design

LIGO - G M LIGO Laboratory at Caltech 19 Schedule

LIGO - G M LIGO Laboratory at Caltech 20 Education & Outreach LHO:  >2800 total visitors; >1100 students (34% under-represented minorities)  Summer immersion program for teachers for inquiry-based classroom instruction skills  e-mentors to 6 th local students  >75% LHO staff participation  Statewide WA Leradership Assistance Award for Science Education Reform  Developing an E-Lab interactive tool for students to build research projects with LIGO PEM data LLO -- Since LIGO Science Education Center opened November 13 th, 2006:  > 2400 student visitors (1 out of state group, 1 group >90 persons)  > 225 teachers received Prof. Devel. Training at LIGO SEC  19 Special Events (star party, SPS Zone 10 mtng, family science night at schools, etc)  Partners & participants: Southern University, Exploratorium, LA GEAR UP, Tulane University, Southeastern Louisiana University, LA Tech

LIGO - G M LIGO Laboratory at Caltech 21 Outreach To scientific community  GWIC Thesis Prize -- replaces LIGO Thesis Prize  8 nominated theses (4 countries, 4 different projects, 5 experimental, 3 theoretical/data analysis)  Selection committee of 8 representing different GW projects and expertise  Winner announced 22 May 2007  Yoichi Aso (University of Tokyo)  "Active Vibration Isolation for a Laser Interferometric Gravitational Wave Detector using a Suspension Point Interferometer”  Prize to be awarded at Amaldi meeting in Sydney  American Astronomical Society (AAS) session on GWs  Encouraged to Proposed a Special Session for the January 2008 meeting in Austin TX  5 talks, 90 minutes,  Emphasis: Astronomy results and the evolution of a global network  Should hear this summer if proposal is accepted.

LIGO - G M LIGO Laboratory at Caltech 22 Summary  LIGO is operating in a science mode at design sensitivity  1st long science run is ~87.3% complete  Virgo has started SR1 and joined S5 and data are flowing!  Near term vision: Enhanced LIGO upgrade  Improve by factor ~ 2X (w.r.t. S5) in h[f] in 2009  S6 run - last of initial LIGO era  Longer term -- poised for beginning of Advanced LIGO construction  Improve by factor 10X (w.r.t. S5) in h[f] ~2014  LIGO is having a positive, significant impact in both the local (WA, LA) public communities