Other
Scientific paper
Aug 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002noao.prop..264m&link_type=abstract
NOAO Proposal ID #2002B-0264
Other
Scientific paper
We propose to carry out a redshift survey in the 1 < z < 2 range to unprecedented depths with the new ``nod & shuffle'' capability that we are helping to develop for GMOS. We will use these data to determine the mass function of galaxies at the peak epoch of galaxy assembly. A 1 magnitude gain in sensitivity and × 3 gain in multiplexing for GMOS is enabled by the ``nod & shuffle'' micro-slit mode. Our survey will yield high spectroscopic completeness to I=24.5 with GMOS and I=23.5 with MARS, and will lead to true volume-limited samples of galaxies in the poorly explored redshift range 0.8 < z < 2.5. We will probe below M^star at z=2 and 2 magnitudes below M^star at z=0.8. Our program will increase the number of spectroscopically confirmed galaxies in the redshift range 1.3 < z < 2.3 by a factor of ten and improve the empirical luminosity functions in the 0.7 < z < 1 range by a factor of 3 - 5. Our 8-color optical/IR photometric redshift preselection allows for a survey at interesting redshifts that is mass, rather than star-formation rate, limited. This program will aid in the development of nod & shuffle into a standard option for all GMOS users in 2003A and beyond. We will make all of our spectra public through a web interface to assist others in preparing observing programs with GMOS and MARS.
Abraham Roberto
Chen Hsiao-Wen
Crampton David
Glazebrook Karl
Hook Isobel
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