Instruments

Important: Current instrument status

Subaru Telescope has a suite of eight facility instruments providing imaging and spectroscopic capabilities over the full range of wavelengths from optical to mid-infrared.

  • AO188 - Subaru 188-elements Adaptive Optics system - delivers diffraction-limited images in the near-infrared.
  • COMICS - Cooled Mid-Infrared Camera and Spectrograph - provides imaging and spectroscopy from 8-25 microns.
  • FMOS - Fiber Multi Object Spectrograph - provides fiber-fed multi-object spectroscopy from 0.9-1.8 microns over a 30 arcmin field of view.
  • FOCAS - Faint Object Camera And Spectrograph - provides optical imaging and longslit and multi-slit spectroscopy over a 6 arcmin field of view.
  • HDS - High Dispersion Spectrograph - provides extremely high-resolution optical spectroscopy.
  • IRCS - Infrared Camera and Spectrograph - provides imaging from 0.9-5.5 microns, and low-resolution and echelle spectroscopy over the same range.
  • MOIRCS - Multi-Object Infrared Camera and Spectrograph - provides imaging and low-resolution spectroscopy from 0.9-2.5 microns over a 4 arcmin x 7 arcmin field of view.
  • Suprime-Cam - Subaru Prime Focus Camera - provides optical imaging over a large field of view with a mosaic of CCDs.
  • HSC - Hyper Suprime-Cam - provides optical imaging over a very large field of view (1.5 degree diameter) with a mosaic of CCDs.

    Visiting instruments* (Procedures to carry-in Visiting instruments )

    • HiCIAO - High Contrast Instrument for the Subaru Next Generation Adaptive Optics - provides a near-infrared imaging capability in the vicinity of bright sources.
    • Kyoto3DII - Kyoto tridimensional spectrograph II - provides Fabry-Perot / filter imaging and integral field / long-slit spectroscopy in the optical.
    • RAVEN - Multi-Object Adaptive Optics(MOAO) demonstrator - delivers diffraction limited images in 2 science channels to IRCS.
    • SCExAO - Subaru Coronagraphic Extreme Adaptive Optics - delivers high contrast images of the innermost surrounding of bright sources to HiCIAO.

    (*) Observing proposals using the visiting instruments must include the relevant instrument PI as a Co-investigator.

    Decommissioned instruments

    • CIAO - Coronagraphic Imager - provides a near-infrared imaging capability in the vicinity of bright sources.
    • AO36 - Subaru 36-elements Adaptive Optics system - delivers diffraction-limited images in the near-infrared.
    • CISCO/OHS - Cooled Infrared Spectrograph and Camera for OHS - provides imaging and low-resolution spectroscopy in the near-infrared.

A number of exposure time calculators are available.

The following figure and tables should help you decide which instrument(s) is right for your needs.

Spectroscopic capabilities

Instrument Resolution Slit length Pixel scale
COMICS 10000 (0.33") 40" 0.165"
FMOS 500-2200 (1.2"; fiber diameter) 30', multi --
FOCAS 250-7500 (0.4") 6', multi 0.1"
HDS 100000 (0.38") 10",60" 0.13"
IRCS (grism) 50-1400 (0.15-0.90") 21",54" 0.020",0.052"
IRCS (echelle) 5000-20000 (0.14-0.55") 4.8-9.6" 0.060"
MOIRCS 640-1600 (0.5") multi 0.117"

Imaging capabilities

Instrument Field of view Pixel scale Filters
COMICS 42" x 32" 0.133" 15
FOCAS 6' diameter 0.1" 14
IRCS 21,54" 0.020",0.052" 18
MOIRCS 4' x 7' 0.117" 3
Suprime-Cam 34' x 27' 0.20" 12
HSC 1.5 degree diameter 0.16" 5

General enquiries may be directed to Dr. Tae-Soo Pyo (pyo_at_naoj.org).

07 February, 2014


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