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IndIGO Plans & Achievements

IndIGO Plans & Achievements . Sanjeev Dhurandhar IUCAA, Pune. We did it !. LIGO, Virgo achieve design senstivity in initial phase Advanced detectors being constructed to achieve an order of magnitude improve- ment – GW detections ( if GR is correct)

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IndIGO Plans & Achievements

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  1. IndIGO Plans & Achievements Sanjeev Dhurandhar IUCAA, Pune 26th IAGRG Allahabad

  2. We did it ! • LIGO, Virgo achieve design senstivity in initial phase • Advanced detectors being • constructed to achieve an • order of magnitude improve- • ment – GW detections • (if GR is correct) • LCGT (Japan) funded • GW detector network • crucial for GW astronomy • Existing groups strongly favour more detectors! 26th IAGRG Allahabad

  3. GW heritage • 20 years of GW data analysis (IUCAA) and waveform modelling (RRI) at the top level • Strong substantial presence of ex-group members: • B. S. Sathyaprakash, Sukanta Bose, S. Mohanty • + young group of GW experts • + more in the wings • + strong support from other Indians Badri Krishnan • (AEI), RanaAdhikari (Caltech) 26th IAGRG Allahabad

  4. GEO: 0.6km VIRGO: 3km LIGO-LHO: 2km, 4km TAMA: 0.3km LIGO-LLO: 4km AIGO: site International Network of GW Interferometers India, Australia optimal global location for the next detector! 26th IAGRG Allahabad

  5. IndIGO Genesis • Discussion on raised level of Indian GW initiative started in ICGC 2007 – RanaAdhikari, IUCAA postdocs, students • AISTF proposal on establishing Indo-Australian collaboration in • GW astronomy – Bala, Sanjeev, Unni, Tarun & D. Blair • Four meetings till date: Kochi, IUCAA, Shanghai & Perth • IUCAA: IndIGO consortium formed in August 2009 • attended by Schutz, Blair, Sathyaprakash, RanaAdhikari • Shanghai: Meeting with all existing GW experimental groups • LIGO, VIRGO, ACIGA etc – October 2009 • International Advisory committee formed • Clear about Indian experimental circumstances/limitations • IndIGO proposal document prepared & circulated • Perth: LIGO-Australia 26th IAGRG Allahabad

  6. Source localisation with a detector in Australia Compelling reason for LIGO-Australia & for Indian participation in this 26th IAGRG Allahabad

  7. Members of IndIGO consortium • S. V. Dhurandhar (IUCAA) • B. R. Iyer (RRI) • C. S. Unnikrishnan (TIFR) • T. Souradeep (IUCAA) • R. Adhikari(LIGO-Caltech) • B. S. Sathyaprakash (Cardiff) • K. G. Arun(CMI) • B. Bhawal (USA) • S. Bose (WSU) • P. Dasgupta (DU) • S. Doravari(LIGO-Caltech) • A. Gopakumar (TIFR) • R. Gupta (IUCAA) • S. Jhingan (JamiaMillia) • B. Krishnan (AEI) • A. Kumar (IPR) • S. Mitra(JPL-LIGO) • S. Mohanty (UTB) • R. Nayak (IISER) • A. Pai (IISER) • A. Parmeswaran(LIGO-Caltech) • G. Rajalakshmi (TIFR) • T. Seshadri (DU) • A. Sengupta(DU) • S. K. Shukla (RRCAT) 26th IAGRG Allahabad

  8. International Advisory Committee • Rana Adhikari (LIGO, Caltech) • David Blair (UWA) • A. Giazotto (Virgo, Italy) • P. D. Gupta (RRCAT) • Jim Hough (GEO, Glasgow) • K. Kuroda (LCGT, Japan) • H. Lueck (GEO, Hannover) • Nary Man (Virgo, France) • Jay Marx (LIGO, director) • David McClelland (ANU) • Jesper Munch (ACIGA, Chair) • B. S. Sathyaprakash (Cardiff) • B. F. Schutz (AEI director, GEO) • J-Y. Vinet (Virgo, France) • Stan Whitcomb (LIGO, Caltech) 26th IAGRG Allahabad

  9. LIGO-Australia • US and Australia to share roughly equal cost • Clear plan for Indian participation with Australia with help from LIGO • – strong LIGO interest in Indian participation • MOU with Australia • GWDA & source modellingwill be the primary Indian deliverables • We expect clear data rights for GW data analysts in India • Data centre etc. • Bargaining power: Need to account for ~ 20% of Australian costs • High vacuum at end stations, control systems – tasks doable 26th IAGRG Allahabad

  10. Plans & Achievements • LIGO will train Indian experimentalists on Advanced LIGO – they will be assigned installation & commissioning jobs in • LIGO- Australia – S. Doravari + … • Indo-US centre at IUCAA & Caltech funded: PIs T. Souradeep • R. Adhikari • Long term training in experiments • - 3 metre prototype at TIFR, Mumbai • - Summer internships at Caltech, UTB, AEI(Hannover) • 2010 programme very successful • IISERs, NISER, IITs • Positive comments & inputsfrom Off. of Pr. Sc. Advisor • R. Chidambram – (D. Bhawalkar– former director of CAT) 26th IAGRG Allahabad

  11. Plans & Achievements contd • RRCAT committed to consultation in vacuum & lasers • - S. K. Shuklavacuum division head • P. K. Gupta and Sendhil from lasers • A. S. RajaRaoretd from RRCAT – he designed the vacuum system for large scaleAIGO project in Australia • Ajai Kumar & S. B. Bhatt already in progress 26th IAGRG Allahabad

  12. The 3 metre prototype People: Unnikrishnan (PI), Rajalakshmi, Jorge Fiscina Time-scale: 2 ½ years Budget: 0.6 million USD ~ Rs. 26,000,000 - FUNDED Laboratory: TIFR, Mumbai may need tobe shifted later to a quieter place. Objectives: Manpower training, measurements related to short- range forces and Newtonian gravity. Instrument: 3 m arm-length Michelson interferometer with Fabry- Perot enhancement. Sensitivity: In actual operation ~ 5x10-18 m/√Hz above 200 Hz (not aiming for theoretical minimum). 26th IAGRG Allahabad

  13. 6 m 6 m 26th IAGRG Allahabad

  14. Seismic (best and worst case, dashed) Signal recycling + Squeezing Something worth progressing to… Sketch of expected sensitivity for 3-m prototype 10-14 10-15 Best case total 10-16 10-17 SQL suspension noise 10-18 10-19 Shot noise 10-20 1 100 1000 10000 10 Frequency (Hz) 26th IAGRG Allahabad

  15. Manpower Training: IndIGO school at Delhi IRC • GRAND SUCCESS! • IndIGOschool on Gravitational Wave Astronomy held at • Delhi University from 13-24 December 2010. • Coordinators: Seshadri & Sengupta + SVD • Theory, Data Analysis & Experiment • Lecturers included: Alan Weinstein (Caltech) • B. S. Sathyaprakash (Cardiff) • C. S. Unnikrishnan (TIFR) • SVD (IUCAA) • Students from IITs, IISERs, Universities • IndIGO summer internships at international GW laboratories: • 6 students Caltech, UTB (2010) – plans to include other groups 26th IAGRG Allahabad

  16. The first IndIGO School 26th IAGRG Allahabad

  17. Future Directions • Meeting in February 2011 in Delhi – to finalise Indo- Australian collaboration in LIGO-Australia • Funding proposal by Australia and India for LIGO- Australia (2011 – 2017) + operation • Centre for GW Data Analysis • Vigorous programme envisaged in GW Astronomy in the next 6-10 years – more experimental manpower 26th IAGRG Allahabad

  18. 26th IAGRG Allahabad

  19. The Experimental Program: Road Map Will also aid in experiments in short range gravity and Casimir force measurements with unprecedented sensitivity: (G. Rajalakshmi and CS Unnikrishnan, CQG, 2011) 26th IAGRG Allahabad

  20. Features: • 3 m arm-length Michelson interferometer with Fabry-Perot enhancement, mirror size of 15 cm. • Finesse of F-P cavity ~ 300 • Laser power input: ~ 1 W, frequency and amplitude stabilized NPRO Nd:YAG laser or Fiber amplifier enhanced seed NPRO. • Power recycling: Yes • Signal recycling: to be decided • Squeezed light: Planned for later (part of the training feature, will be developed and implemented separately in our optics lab). • Vibration isolation: Passive 3-stage, to reach <10-18 m above 200 Hz. • Vacuum: 10-8 mbar, 3 ion pumps and NEG pumps. • Mode cleaner: Fiber based. • Sensitivity in actual operation ~ 5x10-18 m/√Hz above 200 Hz (not aiming for theoretical minimum). • Time scale for completion: 2.5 years • Laboratory: TIFR, Mumbai, to be shifted to a quieter place later (Hyderabad or Pune). • Budget (hopeful, in 2010): ~ 0.6 million US$ • Applications: Training, and measurements related to short-range forces and Newtonian gravity. 26th IAGRG Allahabad

  21. Formation of the consortium for IndIGO • People from several important institutes have come together • to form a consortium – TIFR, RRI, IUCAA, CMI, DU, IISERs, … • The aim of the consortium is to promote and foster • Indian Initiative in Gravitational Wave Astronomy • Set up the roadmap and a phased strategy towards the • Indian InterferometricGravitational-wave Observatory (IndIGO) 26th IAGRG Allahabad

  22. The Road Map for IndIGO • 3 metre scale prototype :Current • C. S. Unnikrishnan & group at T.I.F.R. • Collaboration with LIGO - Australia: Current • Ranjan Gupta (IUCAA), Ajai Kumar (IPR), • Unnikrishnan (TIFR), RRCAT • IndIGO document submitted to directors + other VIP 26th IAGRG Allahabad

  23. The sub-committees • Council: B. Iyer (Chair), S. Dhurandhar (spokesperson), • C. S. Unnikrishnan & T. Souradeep • 3 metre: C. S. Unnikrishnan, G. Rajalakshmi & S. Doravari • AIGO deliverables: A. Kumar, R. Gupta & C. S. Unnikrishnan • LSC related: S. Dhurandhar, A. Pai & R. Nayak • IndIGO homepage: A. Sengupta, S. Mitra, A. Parmeswaran , K. G. Arun • & T. Souradeep • Workshops/Schools: T. Souradeep, T. Seshadri, Gopakumar, R. Nayak • & A. Pai • Communications: same as IndIGO homepage 26th IAGRG Allahabad

  24. Indo-US centre for Gravitational Physics and Astronomy APPROVED/FUNDED ! • Project of Indo-US Science and Technology Forum • Exchange program to fund mutual visits and • facilitate interaction. • Nodal centres: IUCAA , India & Caltech, US. • Institutions: • Indian: IUCAA, TIFR, IISER, DU, CMI - PI: TarunSouradeep • US: Caltech, WSU - PI: RanaAdhikari 26th IAGRG Allahabad

  25. Key aspects of vacuum and control systems for LIGO Australia • MOU with Australia signed • People: Ranjan Gupta, Ajai Kumar & C. S. Unnikrishnan, • A. S. Raja Rao(formerly CAT) • Feasibility and cost estimate on the basis of LIGO system is • being worked out with Hind High Vacuum company, • Bangalore. • Meeting in Delhi with LIGO and Australians in February 2011 to plan • the future steps and deliverables from India • Indo-Australian exchange grant: Unnikrishnan & Blair 26th IAGRG Allahabad

  26. Organisation & Sub-committees of IndIGO consortium AIGO deliverables 3 m prototype IndIGO homepage LSC Council Workshops Schools Communication Documentation 26th IAGRG Allahabad

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