Transcript IndIGO Indian Initiative in Gravitational

IndIGO: An Update
(Indian Initiative in Gravitational-wave Observations)
Tarun Souradeep
IUCAA, Pune
(Spokesperson, IndIGO)
www.gw-indigo.org
Amaldi-9
Cardiff, UK
10 July 2011
Gravitational wave legacy in India
• Two decades of Internationally recognized Indian contribution to
the global effort for detecting GW on two significant fronts
• Seminal contributions to
source modeling at RRI [Bala Iyer]
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Indo-French collaboration for two decades to compute high accuracy waveforms for inspiraling compact binaries from which the GW templates used in LIGO and Virgo are
constructed. Cardiff collaboration on improved detection templates, parameter estimation,
implications for Astrophysics and Cosmology. [K. Arun, P. Gopakumar, P. Ajith (UG)]
GW data analysis at IUCAA [Sanjeev Dhurandhar]
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Designing efficient data analysis algorithms Notable contribution: Matched filtering
(Sathyaprakash ); search for binary in-spirals hierarchical (S. Mohanty, A Sengupta); coherent
search with network (S. Bose, A. Pai); radiometric maps of stochastic gravitational waves
using CMB map making techs (S Mitra, TS).
IUCAA has collaborated with most international GW groups and
has been a member of the LIGO Scientific Collaboration (LSC) for a
decade.
Multi-Institutional,
Multi-disciplinary Consortium
(Aug. 2009)
Nodal Institutions
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CMI, Chennai
Delhi University
IISER Kolkata
IISER Trivandrum
IIT Madras (EE)
IIT Kanpur (EE)
IUCAA, Pune
RRCAT, Indore
TIFR, Mumbai
IPR, Bhatt
Others
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RRI
Jamia Milia Islamia
Tezpur Univ
The IndIGO Consortium
IndIGO Council
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Bala Iyer
Sanjeev Dhurandhar
C. S. Unnikrishnan
Tarun Souradeep
( Chair)
(Science)
(Experiment)
(Spokesperson)
Data Analysis & Theory
Instrumentation & Experiment
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C. S. Unnikrishnan TIFR, Mumbai
G Rajalakshmi
TIFR, Mumbai
P.K. Gupta
RRCAT, Indore
Sendhil Raja
RRCAT, Indore
S.K. Shukla
RRCAT, Indore
Raja Rao
ex RRCAT, Consultant
Anil Prabhakar,
EE, IIT M
Pradeep Kumar,
EE, IIT K
Ajai Kumar
IPR, Bhatt
S.K. Bhatt
IPR, Bhatt
Ranjan Gupta
IUCAA, Pune
Bhal Chandra Joshi NCRA, Pune
Rijuparna Chakraborty, Cote d’Azur, Grasse
Rana Adhikari
Caltech, USA
Suresh Doravari
Caltech, USA
Biplab Bhawal
(ex LIGO)
RRI, Bangalore
IUCAA, Pune
TIFR, Mumbai
IUCAA, Pune
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Sanjeev Dhurandhar
Bala Iyer
Tarun Souradeep
Anand Sengupta
Archana Pai
Sanjit Mitra
K G Arun
Rajesh Nayak
A. Gopakumar
T R Seshadri
Patrick Dasgupta
Sanjay Jhingan
L. Sriramkumar,
Bhim P. Sarma
Sanjay Sahay
P Ajith
Sukanta Bose,
B. S. Sathyaprakash
Soumya Mohanty
Badri Krishnan
IUCAA
RRI
IUCAA
Delhi University
IISER, Thiruvananthapuram
JPL , IUCAA
Chennai Math. Inst., Chennai
IISER, Kolkata
TIFR, Mumbai
Delhi University
Delhi University
Jamila Milia Islamia, Delhi
Phys., IIT M
Tezpur Univ .
BITS, Goa
Caltech , USA
Wash. U., USA
Cardiff University, UK
UTB, Brownsville , USA
Max Planck AEI, Germany
IndIGO Advisory Structure
Committees:
International Advisory Committee
Abhay Ashtekar (Penn SU)[ Chair]
Rana Adhikari (LIGO, Caltech, USA)
David Blair (AIGO, UWA, Australia)
Adalberto Giazotto (Virgo, Italy)
P.D. Gupta (Director, RRCAT, India)
James Hough (GEO ; Glasgow, UK)[GWIC Chair]
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 (Quantalase, Indore)[Advisor]
P.K. Kaw (IPR)
Ajit Kembhavi (IUCAA)
P.D. Gupta (RRCAT)
J.V. Narlikar (IUCAA)
G. Srinivasan
Program Management Committee:
C S Unnikrishnan (TIFR, Mumbai), [Chair]
Bala R Iyer (RRI, Bangalore), [Coordinator]
Sanjeev Dhurandhar (IUCAA, Pune) [Co-cordinator]
Tarun Souradeep (IUCAA, Pune)
Bhal Chandra Joshi (NCRA, Pune)
P Sreekumar (ISAC, Bangalore)
P K Gupta (RRCAT, Indore)
S K Shukla (RRCAT, Indore)
Sendhil Raja (RRCAT, Indore)]
IndIGO: Goals & current activities
• Provide a common umbrella to initiate and expand GW
related experimental activity and train new technically skilled
manpower
• Seeking pan-Indian consolidated IndIGO membership in LIGO
Scientific Collaboration (LSC) for participation in Advanced LIGO.
• Create a Tier-2 data centre in IUCAA for LIGO Scientific
Collaboration Deliverables and as a LSC Resource
 Starting collaborative work under the IUSSTF Indo-US
IUCAA-Caltech joint Centre at IUCAA
 Indo-Jap project “Coherent multi-detector gravitational wave
search using LCGT and advanced interferometers”
 Explore the Roadmap for EGO-IndIGO collaboration on GW and a
possible MOU (Meeting on Nov 1-2 ,2011 at IUCAA)
 Explore Indian participation in LISA and space based GW detectors
in the future ( ASTROD 5 meeting on July 14 – 16, 2012 at RRI)
Participation in LSC during Advanced LIGO
Proposed Data Analysis activities of the IndIGO Consortium
•Principal Leads: K.G. Arun, R.Nayak, A. Pai, A. Sengupta, S. Mitra
• Participants: S. Dhurandhar, T. Souradeep, B. R. Iyer, C.K. Mishra,
M.K. Harris,….
• Institutions: CMI, IUCAA, IISER (Kolkata), IISER (Tvm), Univ Delhi
•Projects
• Multi-detector Coherent veto
•Tests of GR and alternative theories of gravity
•Stochastic Gravitational wave background analysis
• IndIGO Data Center
IndIGO Data Centre
@
IUCAA
Anand Sengupta, DU, IndIGO
 Primary Science: Online Coherent search for GW signal from
binary mergers using data from global detector network
Coherent  2-4 x event rate (40  80-160 /yr for NS-NS)
 Role of IndIGO data centre
 Large Tier-2 data/compute centre for archival of GW data and analysis
 Bring together data-analysts within the Indian gravity wave community.
 Puts IndIGO on the global map for international collaboration with LIGO
Scientific Collaboration. Facility for LSC as part of IndIGO participation.
 Large University sector participation via IUCAA
• 200 Tflops peak capability (by 2014)
• Storage: 4x100TB per year per interferometer.
• Network: gigabit+ backbone, National Knowledge Network
• Gigabit dedicated link to LIGO lab Caltech
• 20 Tf 200 Tb funded by IUCAA : ready Mid 2012
IndIGO Consortium – a brief history
• Dec. 2007 : ICGC2007 @IUCAA: Rana Adhikari’s visit & discussions
• 2009:
– Australia-India S&T collaboration (Iyer & Blair)
Establishing Australia-India collaboration in GW Astronomy
–
IndIGO Consortium: Reunion meeting IUCAA (Aug 9, 2009)
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GW Astronomy Roadmap for India;
• 2009-2011:
– Meetings at Kochi, Pune, Shanghai, Perth, Delhi
to Define, Reorient and Respond to the Global (GWIC) strategies
for setting up the International GW Network.
– Bring together scattered Indian Experimental Expertise;
Individuals & Institutions
• March 2011: IndIGO-I Proposal: Participation in LIGO-Australia
• May 2011+: LIGO-India..
IndIGO: the Aspiration
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Create major Indian presence in GW astronomy
 MOU with ACIGA to collaborate on GW Astronomy
Two Alternatives depending on the Australian decision (Oct 2010)
Partner in LIGO-Australia
– Indian partnership at 15% of Australian cost with full data rights
A significant recent development …
LIGO-India
– Letter from LIGO Lab. with a concept proposal for LIGO-India
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IndIGO Consortium has placed LIGO-India into the preliminary
shortlist of National Mega Projects being considered under the
forthcoming Five year plan in India ( Final rounds of meetings:
during Sept 2011)
LIGO-India: a good idea for GW community !
• Geographical relocation Strategic for GW astronomy
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Increased event rates (x2-4) by coherent analysis
Improved duty cycle
Improved Detection confidence
Improved Sky Coverage
Improved Source Location required for multi-messenger astronomy
Improved Determination of the two GW polarizations
• Potentially large Indian science user community in the future
– Indian demographics: youth dominated – need challenges
– Improved UG education system will produce a larger number of students
with aspirations looking for frontline research opportunity at home.
• Substantial data analysis trained faculty exists in India and
Large Data Analysis Center Facilities are being planned under
the next five year plan for consolidated IndIGO participation in
LSC for Advanced LIGO
LIGO-India: Attractive Indian megaproject
• On Indian Soil with International Cooperation (no competition)
• Shared science risks and credits with the International community.
• AdvLIGO setup & initial setup risks primarily rests with USA.
– AdvLIGO-USA precedes LIGO-India by > 2 years.
– Vacuum 10 yr of operation in initial LIGO  2/3 vacuum enclosure + 1/3 detector assembly
split (US ‘costing’ : manpower and h/ware costs)
– Indian expters can contribute to AdvLIGO-USA : opportunity without primary responsibility
• US hardware contribution funded & ready
– AdvLIGO largest NSF project funded in USA
– LIGO-India needs NSF approval, but not additional funds from USA
• Expenditure almost completely in Indian labs & Industry
• Very significant Industrial capability upgrade in India.
• Well defined training plan  Large number of highly trained HRD
• Host a major data analysis facility for the entire LIGO network
LIGO-India: … the opportunity
Science Gain from Strategic Geographical Relocation
Source localization error
Courtesy:
S. Fairhurst
LIGO-India plan
1+1 LIGO USA+ Virgo+ LIGO-India
Original Plan
2 +1 LIGO USA+ Virgo
LIGO-Aus plan
1+1 LIGO USA+ Virgo+ LIGO-Aus
LIGO-India: … the opportunity
Strategic Geographical relocation: science gain
Polarization info
Homogeneity of Sky coverage
Courtesy: S.Kilmenko & G. Vedovato
LIGO-India: … the opportunity
Strategic Geographical relocation
- the science gain
Sky coverage: ‘reach’ /sensitivity in different directions
Courtesy: Bernard Schutz
Strategic Geographical relocation: science gain
Network
HHLV
HILV
AHLV
Mean horizon
distance
1.74
1.57
1.69
Detection
Volume
8.98
8.77
8.93
41.00%
54.00%
44.00%
Triple
Detection
Rate(80%)
4.86
5.95
6.06
Triple
Detection
Rate(95%)
7.81
8.13
8.28
47.30%
79.00%
53.50%
0.66
2.02
3.01
Volume Filling
factor
Sky Coverage:
81%
Directional
Courtesy:
Precision
Bernard Schutz
LIGO-India: … the challenges
Indian contribution in human resources:
 Trainable Scientific & engineering manpower for detector
assembly, installation and commissioning.
 Trained S & T manpower for LIGO-India sustained
operations for next 10 years.
 Major enhancement of Data Analysis team. Seek
Consolidated IndIGO participation in LIGO Science Collab.
(Sept 2011)
 Expand theory and create numerical relativity simulation.
Expect a significant number of hirings in premier institutions
LIGO-India: … the challenges
Indian contribution in Engineering. &
infrastructure:
 Ultra-high Vacuum enclosure on large scale
 Site (L-configuration: Each 100-200 m x 4.5km: < 300 acres)
 HPC -Data centre
LIGO-India: … the challenges
Indian Site
Requirements:
Need to move fast!!!
• Low seismicity
Before other facilities
under ext 5 yr plan look
for space there …
• Low human generated noise
• Air connectivity
• Proximity to Academic institutions, labs, industry preferred, …
Very Preliminary exploration:
IISc new campus & adjoining campus near Chitra Durga
(envisaged as a National mega facility hub)
• low seismicity
• Solid rock base
• 1hr from Bangalore International airport
• Bangalore: science & tech hub of India
• National science facilities complex plans  power and
other infrastructure availability, ….
Large scale ultra-high Vacuum
• Fabricated and installed by Indian Industry under close
monitoring by science & technology team
o Oversee the procurement & fabrication of the vacuum system components and its
installation by a national multi-institutional team.
o DAE commitment to LIGO-India  Intense participation of RRCAT & IPR possible.
o All vacuum components such as flanges, gate-valves, pumps, residual gas
analyzers and leak detectors will be bought.
o Companies L&T, Fullinger, HindHiVac, Godrej, … with close support from RRCAT,
IPR and LIGO Lab.
• Preliminary detailed discussions with Industry in Feb 2011 :
Companies like HHV, Fullinger, Godrej in consultation with Stan Whitcomb
(LIGO), D. Blair (ACIGA) since this was a major IndIGO deliverable to LIGOAustralia.
• Preliminary Costing for LIGO-India vacuum component is INR
400 cr. (~80 M USD)
Detector Assembly & Commissioning
For installation and commissioning phase:
• Identify 10-15 core experienced Enggs. & scientists who spend a
year, or more, at Advanced LIGO-USA during its install. & comm.
– LIGO proposal document
– Already 1 IndIGO post-doc at LIGO Caltech, 2 others under consideration in
LIGO and EGO,..
– Creste positions back in India for them (Once project manpower
sanctioned, LIGO-India project hiring at institutions like RRCAT, TIFR, IUCAA,….)
• 6-10 full time engineers and scientists in India.
Present experimental expertise within IndIGO
Laser ITF: TIFR, RRCAT, IITM, IIT K.
UH Vacuum: RRCAT, IPR, (TIFR, IUCNS, new IUCs? )
Each group can scale to 10 Post-doc/PhD students. Over 2-3 years. Train on 3-m prototype .
High precision experimental expertise in India
• TIFR : High precision experiments and tests of weak forces
[C.S. Unnikrishnan]
– Test gravitation using most sensitive torsional balances and optical sensors.
– Techniques related to precision laser spectroscopy, electronic locking, stabilization.
– G.Rajalakshmi (IIA  TIFR, 3m prototype);
– Suresh Doravari (IIA  LIGO, Caltech 40m/Adv LIGO)
• RRCAT (RR Center for Advanced Tech.)
– [S.K. Shukla on INDUS, A.S. Raja Rao (ex RRCAT)] --UHV
– [Sendhil Raja, P.K. Gupta] - Optical system design, laser based
instrumentation, optical metrology, Large aperture optics, diffractive optics,
micro-optic system design.
– [Rijuparna Chakraborty, France  LIGO/EGO pdf?] Adaptive Optics….
• IPR (Institute for Plasma Research)
– [S.B. Bhatt on Aditya and Ajai Kumar] - UHV , Lasers, Control systems,..
• IITM [Anil Prabhakar] and IITK [Pradeep Kumar] (EE depts)
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Photonics, Fiber optics and communications
Characterization and testing of optical components and instruments for use in India..
Large experiment expertise in India
• Groups at BARC (Bhabha Atomic Res. Center) and RRCAT : involved
in LHC hardware contribution
– provided a variety of components and subsystems like precision magnet positioning stand
jacks, superconducting correcting magnets, quench heater protection supplies and skilled
manpower support for magnetic tests and measurement and help in commissioning LHC
subsystems.
• Teams at Electronics & Instrumentation Groups at BARC
(may be interested in large instrumentation projects in XII plan)
• IPR
(Inst. for Plasma res.): Involved in ITER (6xLIGO-Ind cost)
Support role in large volume UHV system, Control systems,….
• Groups at ISRO (Ind. Space Res. Org.) ,…….
Control systems, Clean rooms, Large scale fabrication, ......
• Over the last two years contacts made with the above
groups  opportunities in a GW experiment and
explore their possible participation in LIGO-India/Aus.
RRCAT (Next Plan period): Advanced Interferometry
(Narrow line width Frequency Stabilised laser development)
The laser will be an injection seeded Nd;YAG or Yb:Silica fiber laser locked to a stabilized reference
cavity. The target would be to demonstrate a laser with 1W output and sub-kHz line width and few Hz
stability. Scaling up of the power to 10W will be done as the next step.
RRCAT: Advanced Interferometry
(Ultraflat Components development)
Development of Ultraflat Optical
components such as mirrors for GWD will
require augmenting the existing facility with
an ion beam figuring system for final
correction of the polished optics to /500
or better.
Photonics @ IIT-Madras (& IIT- Kanpur)
11 faculty members (8 in EE, 3 in Physics)
10 M. Tech scholars in EE (Photonics)
20+ research scholars (M.S. and Ph.D.)
Research specializations
➲ Optical communications
➲ Fiber lasers
➲ Diffractive optical elements
➲ Silicon photonics, plasmonics
➲ Nonlinear and quantum optics
➲ Metrology and instrumentation
Strong industry partnerships
IndIGO 3m Prototype Detector
Funded by TIFR Mumbai on campus (2010)PI: C. S.Unnikrishnan ( INR 3.5cr ~.7 M$ )
Goals of the TIFR 3-m prototype interferometer (to be operational in 2014):
1) Research and Training platform with all the features of the
advanced LIGO-like detectors, scaled down to displacement
sensitivity around 10-18 m, above 200 Hz.
2) The Indian research platform for features like signal
recycling, DC read-out, and most importantly the use of
squeezed light and noise reduction (last phase).
3) Instrument for studies on short range gravity and QED force,
especially a measurement of the Casimir force in the range
10 -100 microns where no previous measurements exist
(Rajalakshmi and Unnikrishnan, Class, Quant. Grav. 27, 215007 (2010).
Indo-US centre for Gravitational Physics and
Astronomy @ IUCAA
APPROVED (Dec 2010). Funds received Jul 6, 2011
• Centre of Indo-US Science and Technology Forum (IUSSTF)
• Exchange program to fund mutual visits and facilitate
interactions leading to collaborations
• Nodal centres: IUCAA , Pune, India & Caltech, Pasadena, USA.
• Institutions:
Indian: IUCAA, TIFR, IISER, DU, CMI - PI: Tarun Souradeep
USA: Caltech, WSU
- PI: Rana Adhikari
Concluding Remarks..
Thank you !!!
• Over two decades India has been involved in quality GW research
and been a part of the International GW community
• Since 2009 Indian aspirations involve participation in a major GW
experiment eventually leading to a GW detector in India
The Indian Aspirations in GW research are represented by the
IndIGO Consortium (since Aug 2009)
• With immense help & encouragement from the International GW
community, IndIGO has made significant progress to integrate
India into the GWIC road map towards the setting up of a Global
GW detector network
• IndIGO is actively pursuing concrete, ambitious, well supported
plans to revamp the scale and scope of Indian participation in GW
research and GW Astronomy in the coming decades.
**All interested researchers are welcome to join our efforts**