Transcript The EGO consortium (1)

Welcome !
 EGO : a French Italian
consortium
 to support Virgo
 and European projects for
gravitational waves physics
J. Colas
Commission II meeting – 7 March 2009
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The EGO consortium (1)
 EGO: founded in Dec 2000 by CNRS and INFN.
It is a Consortium open to new members.
 Its mandate is to:
– support the Virgo experiment
– promote co-operation in the field of the experimental and
theoretical gravitational waves research in Europe,
– promote R&D useful for the detection of gravitational
waves.
J. Colas
Commission II meeting – 7 March 2009
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The EGO consortium (2)
STAC
Scientific and Technical Advisory Committee
EGO Council
EGO Director
J. COLAS
Scientific Director/Virgo Spokesperson
F. FIDECARO
Virgo Collaboration
F. FIDECARO
Directorate services
Interferometer operation
F. CARBOGNANI
Site & Infrastructure
P. POPOLIZIO
Computing
S. CORTESE
Technical Coordination for upgrades
H. HEITMANN
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Commission II meeting – 7 March 2009
Administration
F. TOSI
~55 EGO staff
~150 Virgo associates
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The Virgo experiment (1)
h = DL/L ~ 10-21 from ~10 Hz to ~10kHz
A network of GW detectors
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Commission II meeting – 7 March 2009
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The Virgo experiment (2)
 First scientific run
May-October 2007
 Analysis in common with
LIGO
 Now : Virgo+ upgrade
Second scientific run July
09 till mid 2011
 New monolithic
suspensions to increase
sensitivity at low frequency
to be installed in 2010
J. Colas
VSR1 9/2007
3/2009
 signal fades as 1/r
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The number of observable sources
grows as SENSITIVITY3 !
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The Virgo experiment (3)
Current Virgo horizon for NS-NS coalescence
24 million light years
FIRST DETECTION POSSIBLE BUT UNLIKELY
EXPECTED EVENT RATE: 0.01-0.1 ev/yr (NS-NS)
Star map by Richard Powell - http://www.atlasoftheuniverse.com/index.html
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Commission II meeting – 7 March 2009
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Some recent Virgo publications
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Alessandra Corsi Search for gravitational waves associated with GRB 050915a using the
Virgo detector Class. Quantum Grav. 25 (2008) 225001 (20pp)
Gianluca Guidi First joint gravitational waves search by the AURIGA-EXPLORER-NAUTILUSVirgo collaboration Class. Quantum Grav. 25 (2008) 205007 (20pp)
F. Bondu A laser with an in-loop frequency stability of 1e-21 on a 100 ms time-scale for
gravitational wave detection
L. Bosi Virgo Status Class. Quantum Grav. 25 (2008) 184001 (9pp)
I. Fiori Noise studies during the first Virgo science run and after, Class. Quantum Grav. 25
(2008) 184003 (8pp)
F. Frasconi VIRGO: a large interferometer for gravitational wave detection started its first
scientific run J. Phys.: Conf. Ser. 120 (2008) 032007 (7pp)
V. Re A cross-correlation method to search for gravitational wave bursts with AURIGA and
Virgo Class. Quantum Grav. 25 (2008) 114046 (11pp)
Z. Marka Astrophysically triggered searches for gravitational waves: status and prospects
Class. Quantum Grav. 25 (2008) 114051 (12pp)
H. Heitmann Status of Virgo Class. Quantum Grav. 25 (2008) 114045 (8pp)
Lisa Barsotti Lock acquisition of the Virgo gravitational wave detector Interferometer
Astroparticle Physics, 30 (2008) 29 (10pp)
Eric Genin In-vacuum optical isolation changes in a Faraday isolator Applied Optics 47
(2008) 5853 (9pp)
Eric Genin The Virgo 3-KM interferometer for gravitational wave detection J. Opt. A: Pure
Appl. Opt. 10 (2008) 064009 (9pp)
Detector paper sent to Editorial board!
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Commission II meeting – 7 March 2009
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Advanced Virgo (1)
GOAL:
sensitivity 10x better  look 10x further 
Detection rate 1000x larger
LIGO-Virgo network gives direction
Enhanced LIGO/Virgo+
2009
Need to be on time !
Virgo/LIGO today
108 ly
Adv. LIGO/Adv. Virgo
2014
Credit: R.Powell, B.Berger
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Commission II meeting – 7 March 2009
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Advanced Virgo (2)
 Project status:
– Preliminary design released 28/10/2008;
Final design to be released May 2009.
– Under review by an international committee (B. Barish).
Conclusions by end May 2009
– In parallel: review by INFN and CNRS; look for new partners
– Hope for a positive decision at the July EGO Council meeting
 Main milestones
– Mid 2009 : Start of project
– Fall 2011 : start of installation
– Mid 2014 : first lock; start of commissioning. To be on time !
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Commission II meeting – 7 March 2009
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The Virgo EGO Scientific Forum
 a Forum where participating astrophysicists and
theorists would contribute to the development of
scientific knowledge around Virgo.
 a Forum to enlarge the research community around
the present Virgo collaboration.
 Activities :
– VESF schools
– Fellowship program
 Current chair person : V. Ferrari
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ET and its design study
 EGO infrastructure to coordinate EU projects
 ET goal : x10 in sensitivity down to low frequency (1Hz)
 ET Science case:
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Astrophysics: physical parameters of binary systems; GRB
Relativity: compare wave forms with numerical relativity predictions
Cosmology: H; GW from first instants of the Universe
Astro particle: n mass
 A project bringing together the European community
 On the ASPERA road map
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ET Working Groups
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Site and
infrastructure
Thermal noise
of mirrors
and
suspensions /
cryogenics
Optical
configuration
Astrophysics
issues
J. v.d. Brand
F. Ricci
A. Freise
Sathyaprakash
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Management
J. Colas
M. Punturo
H. Lück
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Evolution of the GW detectors
´06 ´07 ´08 ´09 ´10 ´11 ´12 ´13 ´14 ´15 ´16 ´17 ´18 ´19 ´20 ´21 ´22
Virgo
Virgo+
Advanced Virgo
GEO
GEO HF
LIGO
Hanford
Livingston
Advanced LIGO
E-LIGO
LISA
E.T.
Launch Transfer
DS
PCP
Site Prep.
1st Generation
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Commission II meeting – 7 March 2009
data
Construction Comm.
2nd Generation
data
3rd Gen.
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Have a nice visit
And a fruitful meeting
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Commission II meeting – 7 March 2009
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