United Kingdom Infrared Telescope - Instrumentation

Instrumentation

UKIRT has three Cassegrain instruments and a wide-field imager placed forward of the Cassegrain focus.

• CGS4 is a cooled-grating spectrometer with a 90-arcsecond long slit, at spectral resolutions between about 1,000 and 30,000.
• UFTI is a 1024x1024 pixel imager operating between 0.8 and 2.5 micrometres.
• UIST is a 1024x1024 pixel imager/spectrometer operating between 0.8 and 5 micrometres, and offering an integral field mode 3x6 arcseconds in size.
• WFCAM (at forward Cassegrain) is a wide-field imager with four 2048x2048 arrays, each of which covers a field 13.6 arcminutes on a side, for a total field of view of about 0.2 square degrees.