GHOST mechanical concept overview showing the Cassegrain unit, fiber cable and spectrograph

The Gemini High-Resolution Optical SpecTrograph (GHOST) instrument is the newest instrument being developed for the Gemini telescopes, in a collaboration between the AAO, the Herzberg Institute for Astrophisics in Canada, and the Australian National University. GHOST uses a high resolution asymmetric white-pupil Echelle spectrograph fed by two moveable optical-fibre image-slicing integral-field-units located at the Gemini Cassegrain focus. The instrument provides a simultaneous wavelength coverage from 363nm to at least 900nm at a resolution of R=50k-75k. GHOST is designed scheduled for commissioning 2017.

GHOST conceptual design for the integral field unit (left) and slit plane (right)