content 23-October-2017 06:08:33

The JWST instrument suite

An overview of the JWST instrument suite

JWST will carry four science instruments:

NIRSpec
Near-Infrared Spectrograph, provided by ESA with some elements provided by NASA's Goddard Space Flight Center. A wide field (3.4' x 3.6') multi-object near- infrared spectrometer covering wavelengths 0.6µm - 5 µm at spectral resolutions of R~100, R~1000 and R~2700.

NIRSpec. Credit: EADS Astrium GmbH

MIRI
Mid-Infrared Instrument, provided by a partnership composed of ESA, a consortium of nationally funded European institutes, NASA's Jet Propulsion Laboratory, and NASA's Goddard Space Flight Center (GSFC) A combined mid-infrared camera (1.3' x 1.7') and spectrograph (R~100 and R~3000) covering wavelengths from 5 µm to 28.3 µm. It also includes a coronagraph.

MIRI. Credit: STFC/RAL Space

NIRCam
Near-Infrared Camera, provided by the University of Arizona. A two-channel wide field (2.2' x 4.4') near-infrared camera covering wavelengths 0.6 µm - 5 µm with a large selection of filters. NIRCam will also provide key measurements for the in-orbit adjustment of the shape of JWST's primary mirror segments.

http://sci.esa.int/jwst/52813

NIRCam. Credit: NASA/Chris Gunn

FGS/NIRISS
Fine Guidance System/Near-InfraRed Imager and Slitless Spectrograph, provided by the Canadian Space Agency. NIRISS is a wide-field  (2.2' x 2.2') imager capable of 1.0 µm - 2.5 µm slitless spectroscopy.   It also includes a spectroscopic observing mode optimized for exoplanet spectroscopy.

FGS/NIRISS. Credit: COM DEV Canada

The four instruments are housed within the JWST payload module called the Integrated Science Instrument Module (ISIM).

In this photograph, the Mid-Infrared Instrument (MIRI) and the Fine Guidance Sensor / Near InfraRed Imager and Slitless Spectograph (FGS/NIRISS) have been integrated into the JWST Integrated Science Instrument Module (ISIM). Credit: NASA/Goddard Space Flight Center/Chris Gunn

 


Last Update: 27 January 2017

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