[22.10] The Mass of Systems at 2.5 $<$ z $<$ 5

AAS 207th Meeting, 8-12 January 2006
Session 22 Evolution of Galaxies, Galaxies Surveys I
Poster, Monday, 9:20am-7:00pm, January 9, 2006, Exhibit Hall

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[22.10] The Mass of Systems at 2.5 < z < 5

J. Cooke (University of California, Irvine), A. M. Wolfe (University of California, San Diego), E. Gawiser (Yale University), J. X. Prochaska (UCO Lick/University of California, Santa Cruz)

We present early results from the One-Degree Deep (ODD) survey to measure the mass of 2.5 < z < 5 Lyman break galaxies (LBGs) and damped Lyman alpha systems (DLAs) from their spatial correlation functions. The ODD survey utilizes the Subaru Suprime-Cam wide-field imager and the Keck DEIMOS spectrograph and aims to increase the z > 3.5 LBG spectroscopic sample by an order of magnitude. These spectra will provide the much needed insight into the nature of high redshift protogalaxies and their mass evolution. The ODD survey builds upon the results of our narrow-field survey at z ~ 3 for LBGs associated with DLAs. In that work, we made an independent measurement of the spatial LBG auto-correlation and the first measurement of the spatial DLA-LBG cross-correlation. The ODD survey will greatly improve the statistics of both results and make the first measurements of the spatial correlation functions at z ~ 4. In addition, we will estimate the average mass of R < 25.5 high redshift QSOs using this technique and study the large scale behavior of 2.5 < z < 5 systems.

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