• First Light (WFSS)
  • Optimized to detect emission-line galaxies over a large redshift range (7 < z < 17).
  • Optimized to detect Lyman break galaxies.
• High-Contrast Imaging of Point Sources (AMI)
  • Non-Redundant Mask (NRM) provides the highest angular resolution of any instrument on JWST.
  • Enables detection of planets very close (70-500mas) to their parent star.
• High-Resolution Imaging of Extended Sources (AMI)
  • NRM provides capability to perform aperture synthesis (as is commonly done in radio astronomy)
  • Enables high-resolution mapping of AGN and quasars (for example)
• Exoplanet Characterization (AMI, SOSS)
  • Three medium-band filters for use with NRM provide spectral information to characterize the temperature and gravity of objects
  • The design G700XD grism is optimized for spectroscopy of transiting exoplanet systems between 0.6 and 2.5 microns. This region includes strategic molecular features like H₂O and CO₂. Mild defocus provided by a built-in lens and the absence of a slit permits extraordinary accuracy.