Bologna – 08/05/2013

E-ELT: Stato, Problemi, Opportunità

Filippo M. Zerbi INAF-DS USC-II

Bologna – 08/05/2013

EELTs

Bologna – 08/05/2013

E-ELT Concept

 -­‐  Embedded  single  layer  AO  correc4on  

 -­‐  Configura4on:  Folded  3-­‐mirros  anas4gmat  with  2  flat  folding  mirrors  (M4  and  M5)  

 -­‐  M4  is  adap4ve  with  8000  voice-­‐coil  actuators  over  an  area  of  2.3x2.3  m2.  M5  provides  4p/4lt  

 -­‐  Nearly  diffrac4on  limited  10  arcmin  diam.  FoV  

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Foci

Alt-­‐Az,2  Nasmyth  focal  sta4ons  distributed  by  ad  Adaptor  Rotator,  provision  for  a  Coudè  Focus  

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Recent History

•  Born as the merging of the Euro50 and OWL •  Final Design Study in the years 2005-2010 •  Passed Final Design Review in September 2010 •  “Extension” of detailed design phase in 2011 (Risks, Cost,

Schedule. •  Revised Baseline endorsed by ESO council in June 2011 •  Preparatory work financed in 2012 (Armazones, Key

Technologies)

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Driving Science

•  Extra-Solar Planets –  Discovery of small (earth-like) planets. Characterization of Planets

Atmospheres……

•  Resolved Stellar Population –  Reconstructing the formation and evolution of a representative sample of

galaxies in the nearby Universe by studying their resolved stellar populations

•  Physics of High redshift Galaxies –  Formation and evolution of galaxies in the high redshift Universe.

•  Cosmology and Fundamental Physics –  Distant Supernovae – Dark Energy – Intergalactic Medium – Variation of the

Physical Constants

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Instrument Studies

•  CODEX: Ultra Stable HR VIS Spectrograph •  EAGLE: AO-assisted Multi-integral field NIR spectrometer •  EPICS: Planet Imager, Spectr. Imaging Polarimeter with XAO •  HARMONI: Single Field Integral Field Spectrograph •  METIS: Mid IR Imager Spectrograph with AO •  MICADO: Imager and Slit Spectrograph •  DIORMAS: Wide-Field Imager & Low-Med. Res. Slit Spectrograph •  EVE: Optical-NIR Fibre-based MOS •  SIMPLE: Cross-dispersed NIR Echelle Spectrograph •  ATLAS: Laser Tomography AO Module •  MAORY: Multi Conjugate AO Module

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Construction Proposal

•  First  Issue  2010  •  Consolidate  Issue  (de-­‐scoped)  2011  •  Science  Case  •  Technical  Overview  •  Results  o  Industrial  Preliminary  Ac4vi4es  •  Trade-­‐Offs  •  Roadmap  to  construc4on  •  Management  Plan  •  Project  Organiza4on    

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Instrument RoadMap

•  The  first  light  instruments  will  be  an  IFU  and  a  diffrac4on  limit  camera  (HARMONI,  MICADO  like).  

•  MCAO  and  LTAO  modules  also  foreseen  at  first  light  

•  Soon  a_er  a  HIRES  a  MOS  will  be  kicked-­‐off  the  order  depending  on  TRL  level  and  general  decision  process.    

•  There  is  room  for  a  “new”  instrument  and  PCS  will  follow  at  the  end  

•  Redefini4on,  priori4za4on,  et…  

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Status of the project

•  E-ELT requires the consensus of 10 out of 16 participating countries: –  “to consent” means to pay an

additional contribution in cash plus an increase in the annual contribution to ESO budget

•  E-ELT requires to have 90% of the expected cost (1083 M€) available to commence

-- 650 M€ (60%) are secured today

June  ‘12   Dec  ‘12   Today  

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Problems

•  Brazil  Started  the  nego4a4on  to  join  ESO  in  2009  

•  On  Dec  30,  2010  President  Lula  da  Silva  signed  the  membership  agreement  

•  Since  then  the  agreement  is  pending  approval  of  the  Parliament  

•  Earlier  2013  the  first  “wrigen  statement”  was  issued.    

•  The  agreement  could  be  possibly  be  signed  during  this  year  

•  Any  “Serious”  ac4vity  is  delayed  to  2014  

 

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Opportunities

•  Industrial –  Participation to the construction of the Telescope: M4, M1, Main

Structure, etc. –  Participation (or leading) the construction of the instruments: Large

Free-Form Optics, Advanced AO instrument, Holography and new materials - high added-value expertise.

•  Science –  Leading MAORY, coordinating HIRES and participating to MOS

•  Political/Financial –  Participating to a recognized European Infrastructure – Access to E-

I support money at National and International level

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The End