13 January, 2006 - 2:10 PM
ZEUS: The Redshift(z) and Early Universe Spectrometer
G. J. Stacey (Cornell University), S. Hailey-Dunsheath, T. Nikola, T. Oberst, S. C. Parshley, D. Benford, S. H. Moseley & J. G. Staguhn
We will discuss the design, current status, and plans for our submillimeter grating spectrometer, ZEUS. ZEUS is an echelle grating spectrometer designed to star formation in the early Universe from about 2 billion years after the Big Band to the present by observing submillimeter and redshifted far-infrared spectral lines from star forming galaxies. ZEUS has a resolving power ~ 1000 and large (up to 6.4%) spectral coverage, optimized for detection of extragalactic point sources in the short submillimeter (350, 450 and 610 um) windows. When completed, ZEUS will have a 4 x 64 pixel TES sensed array delivering an instantaneous 64 element spectrum for each of 4 spatial positions on the sky. ZEUS is adaptable for use on the JCMT, the CSO, the SMT, and APEX. Our science goals include (1) observing redshifted far-IR fine-structure lines from distant (z ~ 1 to 4) galaxies, (2) measuring the redshift of optically obscured submillimeter galaxies by detecting their bright 158 μm [CII] line emission, and (3) investigating the properties of nearby starburst and ULIG galaxies through studies fo their [CI] and mid-J CO line emission.