NASA's James Webb Space Telescope

Near-Infrared Spectrometer (NIRSpec)

JWST's Near-Infrared Spectrograph (NIRSPEC) is a near-infrared (wavelengths of 0.6 to 5.3 microns) multi-object dispersive spectrograph capable of several modes of observation including:Photo of microshutters on NIRSpec

  1. Multi-object spectroscopy (MOS) with the micro-shutter assembly (MSA)
  2. 3-D imaging spectroscopy with the integral field unit (IFU) 
  3. High contrast single object spectroscopy with the fixed slits (FSs)
  4. High throughput bright object time-series (BOTS) spectroscopy with the NIRSpec wide aperture

NIRSpec was built for the European Space agency by Airbus Industries with the Micro-Shutter Array (MSA) and detector sub-systems fabricated by NASA. Dr. Pierre Ferruit guided its development as project scientist. Peter Jakobsen, the NIRSpec Instrument PI, retired in December 2011.

For detailed instrument information, please review the NIRSpec JWST User Documentation (JDox).