Transcript Case for INDIGO

IndIGO
Indian Inititative in Gravitational-wave Observations
 Preparing India for Gravitational wave Astronomy
Tarun Souradeep
IUCAA
GW Astronomy with Intl. Network of GW Observatories
1. Detection confidence 2. Source direction 3. Polarization info.
GEO: 0.6km
LIGO-LHO: 2km, 4km
VIRGO: 3km
TAMA: 0.3km
LIGO-LLO: 4km
LIGO-Australia?
Courtesy: S. Dhurandhar
Gravitational wave Astronomy :
Courtesy: B. Schultz
GWIC Roadmap
GWIC: Gravitational Wave International Committee
Courtesy: B. Schultz: GWIC Roadmap Document
INDIGO: the goals
• Partnership in LIGO-Australia
– 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.
– Plan B: LIGO-India ?
• 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 efforts
– 3m prototype detector in TIFR (funded). Unnikrishnan
– New IndIGO partners : Laser expt. IIT M, IIT K
– UG summer internship at Intl GW labs & observatories.
IndIGO: Why is it a good idea?
• 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
participation in 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
• Scattered , small scale, individual experimental expertise related to
GW observatories have a much better prospect to thrive under the
INDIGO umbrella. (Easier to conceive, plan and implement in light of a major initiative)
– Sendhil Raja, RRCAT, Anil Prabhakar, EE, IIT Madras, Pradeep Kumar, EE, IITK
Photonics
– Vacuum expertise with RRCAT , IPR (Ajai Kumar)
Indo-Aus.Meeting, Delhi, Feb
2011
Indo-Aus.Meeting, Delhi, Feb
2011
Multi-Institutional
Consortium
Courtesy: Unnikrishnan
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IUCAA
TIFR
RRI
RRCAT
IPR
CMI
Delhi University
IISER Kolkata
IISER Trivandrum
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IIT Chennai?
IIT Kanpur?
Jamia Milia ?
The IndIGO Consortium
Sanjeev Dhurandhar (Council Spokesperson)
IUCAA, Pune
Tarun Souradeep (Council)
IUCAA, Pune
Bala Iyer
(Council chair)
RRI, Bangalore
C. S. Unnikrishnan (Council)
TIFR, Mumbai
Badri Krishnan
Albert Einstein Institute, Germany
Rana Adhikari
Caltech, Pasadena
P Ajith
Caltech, Pasadena
B Sathyaprakash
Cardiff University
T R Seshadri
Delhi University
Patrick Dasgupta
Delhi University
Anand Sengupta
Delhi University ?
Biplab Bhawal
Independent
Rajesh Nayak
IISER, Kolkata
Archana Pai
IISER, Trivandrum
Suresh Doravari
Caltech, Pasadena.
Ajai Kumar
IPR, Gandhinagar
Ranjan Gupta
IUCAA, Pune
Sanjay Jhingan
Jamila Milia, Delhi
Bhim Prasad Sarma
Tezpur Univ . ?
Sanjit Mitra
JPL/LIGO, Caltech  IUCAA
Jiwan Mittal
RRCAT, Indore
S Shukla
RRCAT, Indore
G Rajalakshmi
TIFR, Mumbai
A Gopakumar
TIFR, Mumbai
Courtesy:
Soumya Mohanty
UTB, Brownsville
Sukanta Bose
Washington University, Pullman
K G Arun
Chennai Mathematical Institute, Chennai
Unnikrishnan
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)
Courtesy: Unnikrishnan
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)
G. Srinivasan
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
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.
Primary Considerations:
1) Identify definite deliverables
2) Build up the team for detector building in about 3 years
3) Prove credibility and establish research and training facility in the specific
task of GW interferometers in about 3 years
1) Deliverables: End Vacuum Stations, PID Control Tasks, Tests and Validation,
Simulations, Data handling and analysis strategies.
2) Team: 3 Full time and 5 part time (30%) possible in 3 years + 10
technical/engineering people + 5 post-docs, if there is funding.
3) Credibility, research and training: Advanced prototype interferometer
IndIGO Experimenters: Unnikrishnan. C. S., Rajalakshmi, Jorge Fiscina, Rodrigues. P. G (TIFR),
Suresh. D (Caltech post-doc), Saravanan (Univ. Pisa. Doctoral),
Rajiv Kumar (IIT-R), Ajai Kumar, S. B. Bhatt (IPR) -vacuum),
Ranjan Gupta (IUCAA, optics-operations).
Consultant support: P. K. Gupta, S. K. Shukla, Sendhil Raja (RRCAT), Raja Rao (ex-RRCAT)
The IndIGO data analysis centre
•LIGO Sites at Hanford,
Livingston
•Data acquisition systems
 Propose for a high-throughput
Computation and GW Data Archival
Centre.
 Tier -2 centre with data archival and
computational facilities
•LIGO Labs at Caltech
 Inter-institutional proposal for facility
•LIGO Lab at MIT, LSC institutions
like UWM, Syracuse etc
•IndIGO Data Analysis Centre
 Will provide fundamental infrastructure
for consolidating GW data analysis
expertise in India.
Courtesy: Anand Sengupta
Objectives of the data centre
Archival
Indian Researchers and
Students
TIER3 centres at
Univ & IISERS
LSC
LIGO Data Grid
Tier 2
Data Centre
at IUCAA
Community
development
Analysis
Other
science
groups
Web Services
Collaboration
tools
LIGO Data Grid as a role model for the proposed
IndIGO Data Analysis Centre.
Courtesy: Anand Sengupta
IndIGO Data Centre@IUCAA
 Need for a IndIGO data centre
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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
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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
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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
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
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
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
8th February S. Dhurandhar
Delhi
Courtesy:
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
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
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.