Astronomy and Astrophysics – Astrophysics
Scientific paper
2002-09-19
Proc.SPIE Int.Soc.Opt.Eng.4834:161-172,2003
Astronomy and Astrophysics
Astrophysics
12 pages, 5 figures, talk presented at SPIE conference, Aug. 2002
Scientific paper
10.1117/12.457897
The DEIMOS spectrograph has now been installed on the Keck-II telescope and commissioning is nearly complete. The DEEP2 Redshift Survey, which will take approximately 120 nights at the Keck Observatory over a three year period and has been designed to utilize the power of DEIMOS, began in the summer of 2002. The multiplexing power and high efficiency of DEIMOS enables us to target 1000 faint galaxies per clear night. Our goal is to gather high-quality spectra of \~60,000 galaxies with z>0.75 in order to study the properties and large scale clustering of galaxies at z ~ 1. The survey will be executed at high spectral resolution, $R=\lambda/\Delta \lambda \approx 5000$, allowing us to work between the bright OH sky emission lines and to infer linewidths for many of the target galaxies (for several thousand objects, we will obtain rotation curves as well). The linewidth data will facilitate the execution of the classical redshift-volume cosmological test, which can provide a precision measurement of the equation of state of the Universe. This talk reviews the project, summarizes our science goals and presents some early DEIMOS data.
Coil Alison L.
Connolly Amy
Conselice Chris
Cooper Martin
Davis Martin
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