Capability Summary

• Total wavelength range = 360−1030 nm

Imaging (Read more)

• 5.5’ square field of view
• 0.0807"/pixel spatial sampling
• broad and narrow band filters

Spectroscopy

• Resolutions (See grating options) 
  • 1260−8800 for 0.25" slit (depending on grating)
  • 210−1460 for 1.5" slit (depending on grating)
• Modes
  • Single Longslit (Read more)
    • Slit length of 5.5’
  • Multi-Object Spectroscopy (Read more)
    • Using 5.5’ square masks
  • Integral Field Unit (IFU), fiber fed, 0.2" sampling (Read more)
    • IFU-2, 7" x 5", 1000 spaxels
    • IFU-R, 3.5" x 5", 500 spaxels

Guiding Options

• GMOS On-Instrument Wavefront Sensor (OIWFS)
• Periferal Wavefront Sensor 2 (PWFS2)

Get the sensitivity
Get to the integration time calculator

The GMOS were built by a collaboration of the Astronomy Technology Centre at the ROE, the University of Durham in the UK and the Herzberg Institute of Astrophysics in Canada. GMOS-N was delivered in July 2001 with GMOS-S following in December 2002.