Iris: A Tuneable Wavelength, Wide-Field, High Resolution Ultraviolet Imaging Mission Mission

Details Iris: A Tuneable Wavelength, Wide-Field, High Resolution Ultraviolet Imaging Mission Mission Iris: A Tuneable Wavelength, Wide-Field, High Resolution Ultraviolet Imaging Mission Mission

Dec 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995aas...187.7113n&link_type=abstract

American Astronomical Society, 187th AAS Meeting, #71.13; Bulletin of the American Astronomical Society, Vol. 27, p.1386

Astronomy and Astrophysics

Astrophysics

Scientific paper

We present our concept for Iris, an ultraviolet (UV, lambda ~ 1000-3000 Angstroms ) imaging mission which will provide exciting new capabilities in both angular and spectral resolution. Iris will use a tuneable UV filter to provide continusly adjustable wavelength and variable bandwidth. Iris will provide subarcsecond resolution UV images over a ~ 10arcmin field. By taking advantage of both the extremely dark sky background in the far UV as well as the factor ~ 4 improvement in diffraction pattern size of the far UV relative to the optical, Iris will have a major impact on UV imaging capabilities using a modest sized ( ~ 1 m) telescope. Scientific problems to be tackled with Iris include: making detailed diagnoses of the hot interstellar medium; obtaining a more complete understanding of the origins and evolution of galaxies; measuring the energy balance of hot gas in galaxies and clusters of galaxies; and determining properties and dynamics of gas in and around active galaxies at redshifts up to z ~ 2.2. The Iris mission will facilitate major new scientific discoveries and will fill a unique and important role in the NASA Astrophysics Program.

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