IRMOS Public Pages
IRMOS Public Home
Tue, 03 Oct 2000

IRMOS Publications
Tue, 03 Oct 2000

 IRMOS Internal Pages
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IRMOS Internal Home
Tue, 03 Oct 2000

 What Is IRMOS?
IRMOS is a ground-based low to medium resolution infrared multi-object spectrometer being built by a team of collaborators from the Space Telescope Science Institute (STScI), NASA's Goddard Space Flight Center (GSFC), and the National Optical Astronomy Observatories (NOAO). The instrument will have a 170 X 120 arc second field of view and 0.2 arc second spatial sampling. A combination of filters and gratings will give resolutions of R~100 to 4500 for spectroscopy in the J-, H- and K-bands. Direct imaging will also be available in these bands.

The instrument's detector is a 1024 X 1024 HgCdTe array covering the 0.8 to 2.5 um wavelength regime. IRMOS' unique element is a Digital Micro-Mirror Device or DMD. The DMD utilizes MEMS (Micro Electrical Mechanical Systems) technology and features an 848 X 600 array of 17x17 micron square mirrors. These mirrors are digitally accessed and can be placed into either of two states to create spectroscopic slits operating in reflection. Typically, up to 100 slits of various sizes can be formed across the array.

The instrument will be operated on the Kitt Peak National Observatory 4 meter and 2.1 meter telescopes. Because of its spectral resolution and multi-object capability, the instrument will be ideally suited to study densely populated compact regions such as Galactic star clusters, star forming regions, the contents of nearby galaxies and clusters of galaxies at medium redshifts.

 Publications Added
SPIE Publications
19 Sep 2000
Two IRMOS-related SPIE publications by Robert Winsor et al. are now available from the Publications page.

 A Work in Progress...
This site, as with the IRMOS instrument itself, is a work in progress. As IRMOS nears completion, more details will be posted here.

Copyright 2000 by the IRMOS Instrument Team. All rights reserved.
  Last Modified: Tue, September 19, 2000