Talk Title: The Gemini Deep Deep Survey and stellar populations in high redshift galaxies
Abstract: Authors: S. Savaglio, R. Abraham, K. Glazebrook, P. McCarthy, D. Crampton, R. Murowinski, I. Jorgensen, K. Roth, I. Hook, H.-W. Chen, R. Marzke, R. Carlberg
The Gemini Deep Deep Survey (GDDS) is an infrared-selected ultra-deep spectroscopic program aiming to investigate galaxies in the redshift interval 1 < z < 2. In this interval (known as the "redshift desert" for lack of discoveries) the Universe is experiencing its peak of star formation activity. Since 1<z<2 galaxies are at the most 5 Gyr old, it is easier to understand their underlying stellar populations using spectral synthesis models. The GDDS is now publicly releasing rest-frame UV/optical galaxy spectra. The sample contains about 100 1<z<2 galaxies, in three 5'x5' fields. We are detecting a number of interesting galaxies showing very different spectral features, from blue star-forming, to red quiescent, to "E+A". This variety of objects will help to test newly proposed spectral synthesis models that are dealing with young/metal-poor stellar systems.
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