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 7.5-25 microns.
  • 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.
  • HSC - Hyper Suprime-Cam - provides optical imaging over a very large field of view (1.5 degree diameter) with a mosaic of CCDs.
  • IRCS - Infrared Camera and Spectrograph - provides high-angular resolution imaging combined with AO188, low-resolution grism and high-resolution echelle spectroscopies over 0.9-5.6 microns.
  • 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. `

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

    • CHARIS - Coronagraphic High Angular Resolution Imaging Spectrograph - provides high contrast images of exoplanets, disks, brown dwarfs with SCExAO+AO188.
    • HiCIAO - High Contrast Instrument for the Subaru Next Generation Adaptive Optics - provides a near-infrared imaging capability in the vicinity of bright sources. Although HiCIAO+AO188 has been extensively used in the SEEDS project and openuse programs, this mode is no longer available since S16B. HiCIAO will be used as a camera combined with SCExAO only.
    • Kyoto3DII - Kyoto tridimensional spectrograph II - provides Fabry-Perot / filter imaging and integral field / long-slit spectroscopy in the optical (open in S17A only).
    • SCExAO - Subaru Coronagraphic Extreme Adaptive Optics - delivers high contrast images of the innermost surrounding of bright sources to HiCIAO and CHARIS.

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

    Decommissioned instruments

    • AO36 - Subaru 36-elements Adaptive Optics system - delivers diffraction-limited images in the near-infrared.
    • CIAO - Coronagraphic Imager - provides a near-infrared imaging capability in the vicinity of bright sources.
    • CISCO/OHS - Cooled Infrared Spectrograph and Camera for OHS - provides imaging and low-resolution spectroscopy in the near-infrared.
    • FMOS - Fiber Multi Object Spectrograph - provides fiber-fed multi-object spectroscopy from 0.9-1.8 microns over a 30 arcmin field of view.
    • RAVEN - Multi-Object Adaptive Optics(MOAO) demonstrator - delivers diffraction limited images in 2 science channels to IRCS.

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 width) Slit length Pixel scale
COMICS 250-10000 (0.33") 40" 0.165"
FOCAS 250-7500 (0.4") 6', multi 0.1"
HDS 32000 (1") - 160000 (0.2") 10", 60" 0.138"
IRCS (grism) 50 (0.9") - 1400 (0.1") 6.5-20" 0.020", 0.052"
IRCS (echelle) 5000 (0.54") - 20000 (0.14") 3.47-9.37" 0.055"
MOIRCS 463-3180 (0.5") multi 0.116"

Imaging capabilities

Instrument Field of view Pixel scale Filters
COMICS 42" x 32" 0.13" 15
FOCAS 6' diameter 0.1" 14
HSC 1.5 degree diameter 0.16" 6
IRCS 21", 54" 0.020", 0.052" 18
MOIRCS 4' x 7' 0.116" 3
Suprime-Cam 34' x 27' 0.20" 12

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

09 August, 2016


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