E-ELT INSTRUMENTATION - Phase A

E-ELT instrument


In June 2007 ESO presented a plan for instrument and post-focal adaptive optics studies to ESO Council. This plan identified six instrument concepts which were to be studied in collaboration with institutes in the ESO community, as well as two post-focal AO modules (MCAO and LTAO), and two other instruments to be chosen after an open call to the community for additional concepts. By early 2010 all studies (see table below) had successfully been completed. In two cases the consortia were led by ESO, two were set up by direct negotiation with external institutes and all others were selected after an open call for proposals.


 

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

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 – 0.71μm

R = 135000

0.82''

website


SPIE paper (pdf)

EAGLE AO-assisted Multi-integral Field NIR Spectrometer

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

Laboratoire d'Astrophysique de Marseille (LAM); Laboratoire d'Etudes des Galaxies, Etoiles, Physique et Instrumentation (GEPI); Office National d'Etudes et Recherches Aérospatiale (ONERA); United Kingdom Astronomy Technology Centre (UK ATC); Durham University

0.8 – 2.45μm

R = 4000 (HighR ~ 10 000)

IFU: 1.65''   x   1.65''

website


presentation


SPIE paper (pdf)

EPICS Planet Imager, Spectrograph and Imaging Polarimeter with Extreme Adaptive Optics

Markus Kasper, ESO

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

0.6 – 1.65μm

R = 125, 3000 and 20000

IFU: 0.8''   x   0.8'',
EPOL: 1.37''

SPIE paper (pdf)

HARMONI Single Field Integral-field Spectrograph

Niranjan Thatte, University of Oxford

University of Oxford; Centre de Recherche Astrophysique, Lyon; Departamento de Astrofisica Molecular e Infraroja, Consejo Superior de Investigaciones Cientificas, Madrid; Instituto de Astrofisica de Canarias (IAC); United Kingdom Astronomy Technology Centre (UK ATC)

0.47 – 2.45μm

R = 4000, 10 000 and 20 000

2:1 aspect ratio:
10''   x   5'' with the coarsest pixel scale
1''   x   0.5'' with the smallest pixel scale

presentation

METIS Mid-infrared Imager and Spectrograph with AO

Bernhard Brandl, NOVA, University of Leiden

Max-Planck Institute for Astronomy (MPIA); Commissariat a l'Energie Atomique (CEA) Saclay; NOVA; Katholieke Universiteit Leuven; United Kingdom Astronomy Technology Centre (UK ATC)

2.9 – 14μm

Long slit (900 < R < 5000 at L,M,N); IFS (R ~ 100,000 at L,M)

17.6''   x   17.6'' (imager)
17.6'' (long slit); 0.4''  x  1.5'' (IFS)

website


SPIE paper (pdf)

MICADO Imager and Slit Spectrograph

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

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; LESIA

0.8 – 2.5μm

R < 3000

up to 53''

website

OPTIMOS-DIORAMAS Wide-Field Imager & Low-Medium Resolution Slit Spectrograph

Olivier Le Fevre, Laboratoire d'Astrophysique de Marseille (LAM)

Laboratoire d'Astrophysique de Marseille (LAM); Observatoire de Geneve; INAF IASF Milano; University of Oxford; INAF OTs; Instituto de Astrofisica de Canarias (IAC); Observatoire de Haute Provence

0.37 – 1.6μm

R ~ 300, R ~ 1000, R ~ 2500

6.78'   x   6.78'

OPTIMOS-EVE Optical-NIR Fibre-based MOS

Francois Hammer, Laboratoire d'Etudes des Galaxies, Etoiles, Physique et Instrumentation (GEPI)

GEPI, INAF, NOVA, NBI, RAL, AIP, LSW Heidelberg

0.37 – 1.7μm

R ~ 5000, R ~ 15 000, R ~ 30 000

Single object fibres: 0.81-0.9''
Moderate field IFU: 1.8''  x  3''
Large field IFU: 7.8''  x  13.5''

website

SIMPLE Cross-dispersed Echelle Spectrograph, Long-slit Option

Livia Origlia, INAF, Osservatorio Bologna

INAF-Bologna, Firenze & Rome; Thuringer Landessternwarte; Pontificia Universidad Catolica de Chile; Uppsala

0.8 – 2.5μm

R = 130000

up to ~4'' patrol field for slit viewer

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

ONERA, GEPI, LESIA, UK-ATC, LAM, CRAL

0.35 – 13.5μm

60''

MAORY Multi Conjugate AO Module

Emiliano Diolaiti, INAF, Osservatorio Bologna

INAF, Osservatorio Astronomico di Bologna (INAF.OABo); Office National d.Etudes et de Recherches Aerospatiales (ONERA); INAF, Osservatorio Astronomico di Padova (INAF.OAPd); INAF, Osservatorio Astrofisico di Arcetri (INAF.OAA); INAF, Istituto di Astrofisica Spaziale e Fisica cosmica di Bologna (INAF.IASFBo)

0.8 – 2.4μm

2'

website


Links

  • Contributions by ESO authors that were presented at the SPIE conference in Marseille, June 2008. Many of these papers describe the E-ELT and its instrumentation.