E-ELT INSTRUMENTATION

E-ELT instrument


The E-ELT Instrumentation Project Office has been established to work on the instrument studies and the telescope interface. A plan for instrument and post-focal adaptive optics studies, to be carried out in collaboration with institutes in the ESO community, was presented to the ESO Council in June 2007. The plan identified six instrument concepts, two post-focal AO modules (MCAO and LTAO) of high priority and two other instruments to be chosen after an open call to the community for additional concepts. By September 2008, all ten instrument consortia have been formed and the studies are under way (see table below). In two cases the consortia are led by ESO, two have been set up with a direct negotiation with external institutes and all the others have been selected after an open call for proposals.

Two to three instruments are expected to be ready for first light. A full suite of instruments covering a wide parameter space will be built up over the first decade of E-ELT operations, in a similar way to the VLT.


 

E-ELT Phase A Instrumentation Studies


Name

Instrument Type

Principal Investigator

Institutes
Wavelength Range

Spectral Resolution

Field-Of-View
More
Information
CODEX High Resolution, High Stability Visual Spectrograph

Luca Pasquini, ESO

Instituto Nazionale di Astrofisica (INAF), Osservatori Trieste and Brera; Instituto de Astrofisica de Canarias (IAC); Institute of Astronomy, University of Cambridge; Observatoire Astronomique de l'Universite de Geneve;

0.37-0.72μm

R = 115300

0.82''

SPIE paper (pdf)

EAGLE Wide Field, Multi IFU NIR Spectrograph with MOAO

Jean-Gabriel Cuby, Laboratoire d'Astrophysique de Marseille (LAM)

Observatoire Paris-Meudon (OPM), Laboratoire d'Etudes des Galaxies, Etoiles, Physique et Instrumentation (GEPI) and Laboratoire d'Etudes Spatiales et d'Instrumentation en Astrophysique (LESIA); Ofice National d'Etudes et Recherches Aérospatiale (ONERA); United Kingdom Astronomy Technology Centre (UK ATC); Durham University, Centre for Advanced Instrumentation

0.8-2.45μm

R = 4000 (HighR ~ 10 000)

1.65'' (Patrol FoV 7.3' )

website


presentation


SPIE paper (pdf)

EPICS Planet Imager and Spectrograph with Extreme Adaptive Optics

Markus Kasper, ESO

Laboratoire d'Astrophysique de l'Observatoire de Grenoble (LAOG); LESIA; Universite de Nice; LAM; ONERA; University of Oxford; INAF, Osservatorio Padova; ETH Zurich; NOVA, Universities of Amsterdam and Utrecht

0.6-1.8μm

R = 125, 1500 and 21000

imager: 3''
IFU: 0.8''   x   0.8'',
0.8''   x   0.014''

SPIE paper (pdf)

HARMONI Single Field, Wide Band Spectrograph

Niranjan Thatte, University of Oxford

Centre de Recherche Astrophysique, Lyon; Departamento de Astrofisica Molecular e Infraroja, Consejo Superior de Investigaciones Cientificas, Madrid; IAC; UK ATC

0.8-2.4μm

R = 4000, 10 000 and 20 000

0.51''   x   1.02''
1.28''   x   2.56''
2.56''   x   5.12''
5.12''   x   10.24''

presentation

METIS Mid-infrared Imager and Spectrograph with AO

Bernhard Brandl, NOVA, University of Leiden

MPIA; Commissariat a l'Energie Atomique (CEA) Saclay, Direction des Sciences de la Matiere (DSM)/Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU)/Service d'Astro- physique (SAp); Katholieke Universiteit Leuven; UK ATC

2.9-13.8μm

R = 10 - 100000

imager: 18''
IFU: 0.4''   x   1.6''

website


SPIE paper (pdf)

MICADO Diffraction-limited NIR Camera

Reinhard Genzel, Max-Planck Institute for Extraterrestrial Physics (MPE)

Max-Planck Institute for Astronomy (MPIA); Universitaets-Sternwarte Munich (USM); INAF, Osservatorio Padova; Nederlandse Onderzoekschool Voor Astronomie (NOVA), Universities of Leiden and Groningen

0.8-2.4μm

R = 3000 and 5000

up to 53''

website

OPTIMOS Wide Field Visual MOS

tbd

Negotiations under way with a Consortium of Science and Technology Facilities Council, Rutherford Appleton Laboratory; University of Oxford; LAM; INAF, Istituto di Astrofisica Spaziale e Fisica Cosmica, Milan; GEPI; NOVA, University of Amsterdam; INAF, Osservatori Trieste and Brera; Niels Bohr Institute, University of Copenhagen

0.37-1.7μm

MOS: 5000 (for > 300 objects), 20000 (for > 80 objects), 40000 (for 25 objects)
IFS: 5000

MOS: 7'
IFU: 2''   x   3''
imager: 7'

SIMPLE High Spectral Resolution NIR Spectrograph

Livia Origlia, INAF, Osservatorio Bologna

INAF, Osservatorio Arcetri; INAF, Osservatorio Roma; Uppsala Astronomical Observatory; Thuringer Landessternwarte; Pontificia Universidad Catolica de Chile

0.8-2.5μm

R = 100000 - 150000

slit lengths 0.45'', 4''
slit width ~ 0.024 - 0.036''

website


SPIE paper (pdf)


Characteristics of the Instruments


Click on the images to display larger versions.

field-of-view

field-of-view

field-of-view

Width of the field of view vs. wavelength coverage for the eight E-ELT proposed instruments currently under study. When the expected field of view is not squared, the average value of both dimensions or the diameter is shown. In the case of OPTIMOS and EAGLE (up) the shown value refers to the patrol field. For SIMPLE, the plot shows the slit length in single-object and long-slit modes.

Pixel/spaxel size vs. wavelength coverage for the eight E-ELT proposed instruments currently under study. The diagonal black line shows the diffraction limit of the telescope as a function of wavelength. The values shown here refer to the sampling size of the instruments in their different observing modes. In the case of OPTIMOS-EVE(MOS), the quoted value corresponds to the fibre aperture. CODEX is only included for illustrative purposes as this instrument will not record any spatial information.

Spectral resolution vs. wavelength coverage for the eight E-ELT proposed instruments currently under study. High, medium and low resolution channels are included when available. The arrow in SIMPLE indicates the potential upper limit to be reached depending on specific construction details. In the case of OPTIMOS-EVE(MOS) the arrow represents the range of resolution expected to be available.


Post-focal AO Modules


Name

Instrument Type

Principal Investigator

Institutes
Wavelength Range

Field-Of-View
More
Information
ATLAS Laser Tomography AO Module

Thierry Fusco, ONERA

GEPI and LESIA

0.6-13.5μm

60''

MAORY Multi Conjugate AO Module

Emiliano Diolaiti, INAF, Osservatorio Bologna

INAF, Osservatorio Arcetri; INAF, Osservatorio Padua; University of Bologna; ONERA

0.8-2.4μm

2'

website


presentation


Links

  • ESO makes available all contributions of ESO authors that were presented at the SPIE conference in Marseille, June 2008 link. Many of the papers located therein describe the E-ELT and its instrumentation.
  • presentation by S. D'Odorico (Science Working Group meeting in October 2008)
  • presentation by M. Casali (JENAM 2008)