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LIGO-India

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LIGO-India An Indo-US joint mega-project concept proposal by IndIGO (Indian Initiative in Gravitational-wave Observations) Version: TS Jun 9, 2011 – PowerPoint PPT presentation

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Title: LIGO-India


1
LIGO-India
  • An Indo-US joint mega-project concept proposal

by IndIGO (Indian Initiative in
Gravitational-wave Observations)
Version TS Jun 9, 2011
2
GW Astronomy with Intl. Network of GW
Observatories
1. Detection confidence 2. Source direction 3.
Polarization info.
LIGO-India ?
3
Laser Interferometer GW Observatory
40 kg Fused silica mirrors (USA)
Seismic isolation Stacks (GEO, UK)
Optics controls (USA)
4 km 1.2m diameter high vaccum tubes India
Fig from LIGO-AUS report?
180 W (Germany)
4
Era of Advanced LIGO detectors 2015
If retained get better res picture
5
Gravitational wave Astronomy
  • Synergy with other major Astronomy projects
  • SKA Radio Pulsars timing,
  • X-ray satellite (AstroSAT)
  • Gamma ray observatory
  • Thirty meter telescope gamma ray follow-up,

Courtesy B. Schultz, GWIC Roadmap Document 2010
6
INDIGO the goals
  • Major experimental science science initiative
    in GW astronomy
  • LIGO-India (Letter from LIGO Labs)
  • Advanced LIGO hardware for 1 detector shipped to
    India.
  • India provides suitable site and infrastructure
    to house the GW observatory
  • Site, two 4km armlength high vacuum tubes in L
    config.
  • Indian cost Rs 1000Cr
  • Earlier plan Partnership in LIGO-Australia (a
    diminishing possibility)
  • Advanced LIGO hardware for 1 detector shipped to
    Australia at the Gingin site, near Perth. NSF
    approval
  • Australia and International partners find funds
    (equiv to half the detector cost 200M) within
    a year.
  • Indian partnership at 15 with full data rights.
  • Consolidated IndIGO membership of LIGO Science
    Collab.
  • propose creating a Tier-2 data centre for LSC
    in IUCAA IUSSTF IndoUS joint Centre at IUCAA
    with Caltech (funded)
  • Provide a common umbrella to initiate and expand
    GW related experimental activity and training new
    manpower
  • 3m prototype detector in TIFR (funded).
    Unnikrishnan
  • Laser expt. RRCAT, IIT M, IIT K High Vaccum
    controls at IPR, BARC, ISRO, .
  • UG summer internship at Natn. Intl GW labs
    observatories.
  • Postgrad IndIGO schools, specialized courses,

7
  • IUCAA
  • TIFR
  • RRI
  • RRCAT
  • IPR
  • CMI
  • Delhi University
  • IISER Kolkata
  • IISER Trivandrum
  • IIT Chennai
  • IIT Kanpur
  • Jamia Milia

8
The IndIGO Consortium
  • IndIGO Council
  • Bala Iyer ( Chair) RRI,
    Bangalore
  • Sanjeev Dhurandhar (Science) IUCAA, Pune
  • C. S. Unnikrishnan (Experiment) TIFR, Mumbai
  • Tarun Souradeep (Spokesperson) IUCAA, Pune
  • Data Analysis Theory
  • Sanjeev Dhurandhar IUCAA
  • Bala Iyer RRI
  • Sukanta Bose, Wash. U., USA
  • B. S. Sathyaprakash Cardiff University, UK
  • Anand Sengupta Delhi University
  • Archana Pai IISER, Trivandrum
  • Sanjit Mitra JPL, Caltech ? IUCAA
  • K G Arun Chennai Math. Inst., Chennai
  • P Ajith Caltech , USA
  • Rajesh Nayak IISER, Kolkata
  • A. Gopakumar TIFR, Mumbai
  • Soumya Mohanty UTB, Brownsville , USA
  • Badri Krishnan Max Planck AEI, Germany
  • Tarun Souradeep IUCAA
  • T R Seshadri Delhi University
  • Patrick Dasgupta Delhi University
  • Sanjay Jhingan Jamila Milia, Delhi
  • Instrumentation Experiment
  • C. S. Unnikrishnan TIFR, Mumbai
  • Rana Adhikari Caltech, USA
  • Sendhil Raja RRCAT, Indore
  • Anil Prabhakar, EE, IIT M
  • Pradeep Kumar, EE, IIT K
  • Suresh Doravari Caltech, USA
  • Ajai Kumar IPR, Gandhinagar
  • Ranjan Gupta IUCAA, Pune
  • Jiwan Mittal RRCAT, Indore
  • S Shukla RRCAT, Indore
  • Raja Rao ex RRCAT consultant
  • G Rajalakshmi TIFR, Mumbai
  • Biplab Bhawal Independent(Google)

9
IndIGO structure
Committees
International Advisory Committee Rana Adhikari
(LIGO, Caltech, USA) David Blair (AIGO, UWA,
Australia) Adalberto Giazotto (Virgo, Italy) P.D.
Gupta (Director, RRCAT, India) James Hough (GEO,
GWIC Chair Glasgow, UK) Kazuaki Kuroda (LCGT,
Japan) Harald Lueck (GEO, Germany) Nary Man
(Virgo, France) Jay Marx (LIGO, Director,
USA) David McClelland (AIGO, ANU,
Australia) Jesper Munch (Chair, ACIGA,
Australia) B.S. Sathyaprakash (GEO, Cardiff Univ,
UK) Bernard F. Schutz (GEO, Director AEI,
Germany) Jean-Yves Vinet (Virgo, France) Stan
Whitcomb (LIGO, Caltech, USA)
National Steering Committee Kailash Rustagi
(IIT, Mumbai) Chair Bala Iyer (RRI)
Coordinator Sanjeev Dhurandhar (IUCAA)
Co-Coordinator D.D. Bhawalkar P.D. Gupta
(RRCAT) J.V. Narlikar (IUCAA) Ajit Kembhavi
(IUCAA) G. Srinivasan
Courtesy Unnikrishnan
10
LIGO-India Why is it a good idea? for India
  • Have a 20 year legacy and wide recognition in the
    Intl. GW community. (Would not make it to the
    GWIC report, otherwise!)
  • AIGO/LIGO/EGO strong interest in fostering
    Indian community
  • GWIC invitation to IndIGO join as member (Jul
    2011)
  • Jump start direct participation in GW
    observations/astronomy
  • going beyond analysis methodology theoretical
    prediction --- to full fledged participation in
    experiment, data acquisition, analysis and
    astronomy results.
  • For once, may be perfect time to a launch into a
    promising field (GW astronomy) well before it has
    obviously blossomed.
  • Provides an exciting challenge at an
    International forefront of experimental science.
    Can tap and siphon back the extremely good UG
    students trained in India. (Sole cause of brain
    drain).
  • 1st yr summer intern 2010 ? MIT for PhD
  • Indian experimental scientist ? Postdoc at LIGO
    training for Adv. LIGO subsystem
  • Indian experimental expertise related to GW
    observatories will thrive and attain high levels
    due to LIGO-India.
  • Sendhil Raja, RRCAT, Anil Prabhakar, EE, IIT
    Madras, Pradeep Kumar, EE, IITK Photonics
  • Vacuum expertise with RRCAT (Shukla) , IPR (Ajai
    Kumar)

11
LIGO-India Why is it a good idea? for the World
  • Strategic geographical relocation for GW
    astronomy
  • sky coverage gain
  • distance
  • duty cycle
  • Potentially large science community in future
  • Indian demographics youth dominated need
    challenges
  • excellent UG education system already produces
    large number of trained in India find frontline
    research opportunity at home.
  • Large data analysis trained manpower and
    facilities exist (and being created.

12
GWIC Gravitational Wave International Committee
Courtesy B. Schultz GWIC Roadmap Document
13
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14
  • LIGO-India the concept
  • LIGO Lab approached with concept proposal for
    joint mega-project --- strategic geographical
    relocation of
  • Advanced LIGO interferometer detector funded and
    ready to be shipped by US
  • Indian contribution in infrastructure
  • site
  • vacuum system
  • Related Controls
  • Data centre
  • trained manpower for installation, commissioning
    and running for 10 years

15
  • LIGO-India the Opportunity
  • Part of a fundamental scientific discovery
    direct detection of gravitational radiation
  • Part of historic launch of a new window of
    Astronomy
  • LIGO-India Southernmost, hence, Unique role in
    the Intl. GW observatory network.
  • Full detector at about half the cost is the
    naïve calculation.
  • Adv. LIGO detector system is worth 15 years of
    challenging R D price tag?
  • Indian Labs Industry

16
LIGO-India the opportunity
Strategic Geographical relocation - the science
gain
Sky coverage Synthesized Network
beam (antenna power)
17
LIGO-India the opportunity
Strategic Geographical relocation - the science
gain
Sky coverage reach /sensitivity in different
directions
18
LIGO-India the opportunity
Strategic Geographical relocation
Source localization error
5-15 degrees to degree !!!
Ellipses version as in LIGO-Aus proposal ?
19
LIGO-India the opportunity
Strategic Geographical relocation
Polarization info
Sky coverage ?
20
LIGO-India the opportunity
Strategic Geographical relocation
Figure?
Network HIJLV  GMRT Bangalore Mean horizon
distance 1.57 1.63 Detection Volume 12.0
12.0 Volume Filling factor 73 66 Triple
Detection Rate(80)  8.62 8.64 Triple
Detection Rate(95)  11.1 11.1 Sky Coverage 
100 100 Directional Precision  2.93
3.00
21
LIGO-India the opportunity
LIGO-India Technology gain
Relative valuation ?
  • 180 W pre-stablized NdYAG laser
  • Input condition optics, including electro-optic
    modulators, Faraday isolators, a suspended
    mode-cleaner (12-m long mode-defining cavity),
    and suspended mode-matching telescope optics.
  • five "BSC chamber" seismic isolation systems
    (two stage, six degree of freedom, active
    isolation stages capable of 200 kg payloads)
  • six "HAM Chamber" seismic isolation systems
    (one stage, six degree of freedom, active
    isolation stages capable of 200 kg payloads)
  • eleven Hydraulic External Pre-Isolation systems
    (mount external to chamber for longer range and
    lower frequency isolation and actuation
  • 10 interferometer core optics (test masses,
    folding mirrors, beam splitter, recycling
    mirrors)

22
LIGO-India the opportunity
LIGO-India Technology gain
Relative valuation ?
Five quadruple stage large optics suspensions
systems Triple stage suspensions for
remaining suspended optics Baffles and beam
dumps for controlling scattering and stray
radiation Optical distortion monitors and
thermal control/compensation system for large
optics Photo-detectors, conditioning
electronics, actuation electronics and
conditioning Data conditioning and
acquisition system, software for data
acquisition Supervisory control and
monitoring system, software for all control
systems Installation tooling and fixturing
23
  • LIGO-India the challenges
  • Organizational
  • National level mega-project
  • Identify a lead institution and agency
  • Project leader
  • Train manpower for installation commissioning
  • Generate sustain manpower running for 10
    years.
  • Site
  • short lead time
  • International competetion
  • Technical
  • vacuum system
  • Related Controls
  • Data centre

24
LIGO-India the challenges
Trained Manpower for installation commissioning
Requirements From LIGO requirements doc
Plans Preliminary exploration Sendhil
doc
25
Indo-US centre for Gravitational Physics and
Astronomy
APPROVED for funding (Dec 2010)
  • Centre of Indo-US Science and Technology
    Forum (IUSSTF)
  • Exchange program to fund mutual visits and
  • facilitate interaction.
  • Nodal centres IUCAA , India Caltech, US.
  • Institutions
  • Indian IUCAA, TIFR, IISER, DU, CMI - PI
    Tarun Souradeep
  • US Caltech, WSU
    - PI Rana Adhikari

26
LIGO-India the challenges
Generate manpower for sustenance of the Intl.
observatory
Requirements
  • Plans Preliminary exploration
  • Summer internships in Intl labs underway
  • IndIGO schools
  • Proposals
  • Post graduate school specialization course

27
LIGO-India the challenges
Large scale ultra-high Vacuum enclosure
Requirements
Preliminary exploration
28
LIGO-India the challenges
Indian Site
Requirements Low seismicity Low human generated
noise Air connectivity, Acad institution, labs,
industry
  • Preliminary exploration
  • IISc new campus adjoining campuses near Chitra
    Durga
  • 1hr from Intl airport
  • low seismicity
  • National science facilities complex plans

29
LIGO-India the challenges
Short lead time
Requirements
Preliminary exploration
30
LIGO-India the challenges
Internation competition
Issues
Preliminary assessment
31
The IndIGO data analysis centre
  • Tier -2 centre with data archival and
    computational facilities
  • Inter-institutional proposal for facility
  • Propose for a high-throughput Computation and GW
    Data Archival Centre.
  • Will provide fundamental infrastructure for
    consolidating GW data analysis expertise in India.

Courtesy Anand Sengupta
32
Objectives of the data centre

LIGO Data Grid as a role model for the
proposed IndIGO Data Analysis Centre.
Courtesy Anand Sengupta
33
IndIGO Data Centre_at_IUCAA Indian Initiative in
Gravitational-wave Observations
  • Primary Science Online Coherent search for GW
    signal from binary mergers using data from global
    detector network
  • Role of IndIGO data centre
  • Large Tier-2 data/compute centre for archival of
    g-wave data and analysis
  • Bring together data-analysts within the Indian
    gravity wave community.
  • Puts IndIGO on the global map for international
    collaboration with LIGO Science Collab. wide
    facility. Part of LSC participation from IndIGO
  • 100 Tflops 8500 cores x 3 GHz/core
  • Need 8500 cores to carry out a half decent
    coherent search for gravitational waves from
    compact binaries.
  • (1 Tflop 250 GHz 85 cores x 3 GHz / core)
  • Storage 4x100TB per year per interferometer.
  • Network gigabit backbone, National Knowledge
    Network.

Courtesy Anand Sengupta, IndIGO
34
Future GWDA Plans of IndIGO (as part of LSC)
  • Project leads Sanjit Mitra, T. Souradeep, S.
    Dhurandhar
  • Extend GW radiometer work (Mitra,Dhurandhar,
    TS,2009)
  • Implementation of the cross-correlation search
    for periodic sources (Dhurandhar collab.)
  • Burst Sources
  • Formulation
  • Implementation

Courtesy S. Dhurandhar
35
Vetoes for non-Gaussian noise for coherent
detection of inspirals
  • Project leads Anand Sengupta, Archana Pai, M K
    Harris.
  • Non-Gaussian noise plagues the detector data
  • Vetoes have been developed in LSC for removal
    of non-Gaussian noise
  • in the single detector case
  • For coincidence search the veto is obvious but
    for coherent not so.
  • Developing a veto for coherent is crucial chi
    squared
  • Scope for improving the current chi squared
    test Japanese
  • collaboration

Courtesy S. Dhurandhar
36
Tests of General Relativity using GW observations
  • Project leads   K G Arun, Rajesh Nayak and
    Chandra Kant Mishra,
  • Bala Iyer
  • GWs are unique probes of strong field gravity.
    Their direct detection would enable very precise
    tests of GR in the dynamical and strong field
    regime.
  • Preparing data analysis algorithms for AdvLIGO in
    order to test GR and its alternatives is one of
    the important and immediate goals of LSC.
  • Plan to take part in the activity to develop
    parameter estimation tools based on Bayesian
    methods.
  • Possible collaboration with B S Sathyaprakash
    (Cardiff University) P Ajith (Caltech).

Courtesy S. Dhurandhar
37
Summary ( next steps?)
38
THE END
39
IndIGO Data Centre_at_IUCAA
  • Need for a IndIGO data centre
  • Large Tier-2 data/compute centre for archival of
    g-wave data and analysis
  • Bring together data-analysts within the Indian
    gravity wave community.
  • Puts IndIGO in the global map for international
    collaboration
  • LSC wide facility would be useful for LSC
    participation
  • Functions of the IndIGO data centre
  • Data archival Tier-2 data centre for archival of
    LIGO data. This would include data from
    LIGO-Australia. LIGO Data-Grid Tools for
    replication.
  • Provide Computation Power Pitch for about 8000
    cores
  • Compare with AEI (5000 cores), LIGO-Caltech
    (1400 cores), Syracuse cluster (2500 cores).
  • Main considerations for data centre design
  • Network gigabit backbone, National Knowledge
    Network. Indian grid!
  • Dedicated storage network SAN, disk space
  • Electrical power, cooling, Air-Conditioning
    requirements and design
  • Layout of rack, cabling
  • Hardware (blades, GPUs etc.), middleware (Condor,
    Globus), software (Data Monitoring Tools,
    LALApps, Matlab)

Courtesy Anand Sengupta
40
Summary data centre requirements
  • 100 Tflops 8500 cores x 3 GHz/core
  • Need 8500 cores to carry out a half decent
    coherent search for gravitational waves from
    compact binaries.
  • (1 Tflop 250 GHz 85 cores x 3 GHz / core)
  • Storage 4x100TB per year per interferometer.
  • Cost 25 crores (Comp. hardware alone)
  • 3/4 crores startup - to facilitate the close
    Intl. interactions required with existing LSC
    data centres labs . Large scale LD analysis
    tools training required. Summer internships,
    meetings/conference/schools,
  • As part of planned HPC data centre at IUCAA ?

Courtesy Anand Sengupta
41
  • LIGO-Australia Idea and Opportunity
  • The NSF approved grand decision to locate one of
    the planned LIGO-USA interferometer detector at
    Gingin site, W. Australia to maximize science
    benefits like baseline, pointing, duty cycle,
    technology development and international
    collaboration.
  • The proposal from Australian consortium
    envisages IndIGO as one of the partners to
    realize this amazing opportunity.
  • - Indian contribution in hardware (end station
    vacuum system, and controls), Data centre,
    manpower for installation and commissioning.

42
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43
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