The Messenger ELT Instrumentation

HARMONI: the ELT’s First-Light Near-infrared and Visible Integral Field Spectrograph

No. 182 (March 2021), 7–12

Authors
  • Thatte, Niranjan [Department of Physics, University of Oxford, UK]
  • Tecza, Matthias [Department of Physics, University of Oxford, UK]
  • Schnetler, Hermine [United Kingdom Astronomy Technology Centre (UKATC), Edinburgh, UK]
  • Neichel, Benoit [Laboratoire d’Astrophysique de Marseille (LAM), France]
  • Melotte, Dave [United Kingdom Astronomy Technology Centre (UKATC), Edinburgh, UK]
  • Fusco, Thierry [Laboratoire d’Astrophysique de Marseille (LAM), France; Département d’Optique et Techniques Avancées (DOTA), Office National d’Etudes et de Recherches Aérospatial (ONERA), Paris, France]
  • Ferraro-Wood, Vanessa [Department of Physics, University of Oxford, UK]
  • Clarke, Fraser [Department of Physics, University of Oxford, UK]
  • Bryson, Ian [United Kingdom Astronomy Technology Centre (UKATC), Edinburgh, UK]
  • O’Brien, Kieran [Physics Department, Durham University, UK]
  • Mateo, Mario [Department of Astronomy, University of Michigan, USA]
  • Garcia Lorenzo, Begoña [Instituto de Astrofísica de Canarias (IAC) and Departamento de Astrofísica, Universidad de La Laguna, Tenerife, Spain]
  • Evans, Chris [United Kingdom Astronomy Technology Centre (UKATC), Edinburgh, UK]
  • Bouché, Nicolas [Centre de Recherche Astrophysique de Lyon (CRAL), France]
  • Arribas, Santiago [Centro de Astrobiología – Instituto Nacional de Técnica Aeroespacial, Consejo Superior de Investigaciones Científicas (CAB-INTA/CSIC), Madrid, Spain]
  • The HARMONI Consortium
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Section
ELT Instrumentation
Abstract

The High Angular Resolution Monolithic Optical and Near-infrared Integral field spectrograph (HARMONI) is the visible and near-infrared (NIR), adaptive-optics-assisted, integral field spectrograph for ESO’s Extremely Large Telescope (ELT). It will have both a single-conjugate adaptive optics (SCAO) mode (using a single bright natural guide star) and a laser tomographic adaptive optics (LTAO) mode (using multiple laser guide stars), providing near diffraction-limited hyper-spectral imaging. A unique high-contrast adaptive optics with high performance and good sky coverage, respectively (AO) capability has recently been added for exoplanet characterisation. A large detector complement of eight HAWAII-4RG arrays, four choices of spaxel scale, and 11 grating choices with resolving powers ranging from R ~ 3000 to R ~ 17 000 make HARMONI a very versatile instrument that can cater to a wide range of observing programmes.

DOI
Bibcode
2021Msngr.182....7T
Dates
Created: 2021-03-01/2021-03-31
Length
6 pages
Rights
Copyright European Southern Observatory

Cite this article:

Thatte, N., Tecza, M., Schnetler, H., Neichel, B., Melotte, D., Fusco, T., Ferraro-Wood, V., Clarke, F., Bryson, I., O’Brien, K., Mateo, M., Garcia Lorenzo, B., Evans, C., Bouché, N., Arribas, S., The HARMONI Consortium; HARMONI: the ELT’s First-Light Near-infrared and Visible Integral Field Spectrograph. The Messenger 182 (March 2021): 7–12. https://doi.org/10.18727/0722-6691/5215