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

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 with high performance and good sky coverage, respectively. A unique high-contrast adaptive optics (HCAO) 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~17000 make HARMONI a very versatile instrument that can cater to a wide range of observing programmes.

As published in the ESO Messenger

Cited by in corpus (11)

• The Extremely Large Telescope
• Metal line emission from galaxy haloes at z~1
• Behind the Mask: can HARMONI@ELT detect biosignatures in the reflected light of Proxima b?
• Directly tracing cool filamentary accretion over >100 kpc into the interstellar medium of a quasar host at z=1
• Detectability of satellites around directly imaged exoplanets and brown dwarfs
• Hubble Space Telescope Proper Motion (HSTPROMO) Catalogs of Galactic Globular Clusters. VII. Energy Equipartition
• Probing the Delay Time of Supermassive Black Hole Binary Mergers With Gravitational Waves
• Instrumentation prospects for rocky exoplanet atmospheres studies with high resolution spectroscopy
• Evolving morphology of resolved stellar Einstein rings
• Advances in control of a Pyramid Single Conjugate Adaptive Optics system
• Probing cool giants in unresolved galaxies using fluctuation eigenspectra: a demonstration using high-resolution MUSE observations of NGC 5128