5 papers · 1 filter
HARMONI at ELT: Reoptimization of the NGSS natural guide star sensors system for MCAO compatibility
Kjetil Dohlen, David Le Mignant, Anne Bonnefoi +16
HARMONI is the first-light, adaptive optics assisted, near-IR integral field spectrograph for the ELT. It covers a spectral range from below 800nm to 2400nm with resolving powers f…
Concept validation of a high dynamic range point-diffraction interferometer for wavefront sensing in adaptive optics
Nicolas Dubost, Nazim Ali Bharmal, Marc Dubbeldam +1
The direct detection and imaging of exoplanets requires the use of high-contrast adaptive optics (AO). In these systems quasi-static aberrations need to be highly corrected and cal…
MOSAIC: the high-multiplex and multi-IFU spectrograph for the ELT
Rubén Sánchez-Janssen, Francois Hammer, Simon Morris +40
MOSAIC is the planned multi-object spectrograph for the 39m Extremely Large Telescope (ELT). Conceived as a multi-purpose instrument, it offers both high multiplex and multi-IFU ca…
First light with HiPERCAM on the GTC
Vikram Dhillon, Simon Dixon, Trevor Gamble +20
HiPERCAM is a quintuple-beam imager that saw first light on the 4.2m William Herschel Telescope (WHT) in October 2017 and on the 10.4m Gran Telescopio Canarias (GTC) in February 20…
Opto-mechanical designs for the HARMONI Adaptive Optics systems
Kjetil Dohlen, Timothy Morris, Javier Piqueras Lopez +14
HARMONI is a visible and near-infrared integral field spectrograph equipped with two complementary adaptive optics systems, fully integrated within the instrument. A Single Conjuga…