Multislit Spectroscopy of the Bright End of An Infrared-Selected Field Galaxy Survey

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The current picture of the star formation history of the Universe suggests the global star formation rate increases rapidly from z=0 to z=1. However, the steepness of this rise remains uncertain. The Canada-France Redshift Survey (Lilly et al 1995) finds a steep rise, while Cowie et al (1999), using a comparably-sized survey with more extensive photometry, show a more gradual rise. Using the BRIzJK 100 arcmin^2 survey of Elston, Eisenhardt, & Stanford (2000), we propose 3 nights of RCSP multislit spectroscopy to study the optically-bright (I < 20) end of a K-selected (K < 20) sample. Spectroscopy for this sample will provide critical information on the formation, evolution, and luminosity function of normal field galaxies at z ~lt 1 and will provide independent measurement of the cosmic star formation rate at z ~lt 1. This program complements our Keck/LRIS multislit spectroscopy of the optically-faint end of the same K-selected sample and represents an efficient of use of telescope time and capabilities.

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