NOAO >   Observing Info >   Approved Programs >   2003B-0385

Small NOAO Logo

Proposal Information for 2003B-0385


PI: Eric Gawiser, Yale University/U. de Chile, gawiser@astro.yale.edu
Address: Astronomy Department, PO Box 208101, New Haven, CT 06520-8101, USA

CoI: Meg Urry, Yale University
CoI: Pieter van Dokkum, Yale University
CoI: Ezequiel Treister, Yale University/U. de Chile
CoI: Leopoldo Infante, P. Universidad Catolica de Chile
CoI: Charles Liu, American Museum of Natural History
CoI: Paolo Coppi, Yale University

Title: Deep Narrow-band Imaging of CDF-S: Testing the Peaks-Bias Paradigm of Galaxy Formation

Abstract: We request 2 dark nights at CTIO 4m + MOSAIC to obtain deep 4990A narrow-band images of the 36'\times 36' Extended CDF-S as part of an ambitious multiwavelength survey conducted in collaboration with Chilean astronomers. The unprecedented combination of width and depth (5\sigma source detection in AB mags of 25.5) will produce the largest sample to date of Lyman Alpha Emitting galaxies (LAEs) at z=3 (we expect 130 LAEs at 3.08<z<3.12). High-resolution HST-ACS images from the GOODS and GEMS projects will allow us to study the stellar populations and morphology of the selected LAEs down to continuum magnitudes of V=27. Redshifts of hundreds of Lyman break galaxies will be obtained from a public ESO program on VLT-VIMOS and Chilean time on Magellan-IMACS, allowing us to select a spectroscopic sample of LBGs that fall in the same redshift range as the LAEs. This enables the first calculation of the cross-correlation function of Lyman break galaxies and Lyman alpha emitters, which serves as a direct test of the peaks-bias paradigm of galaxy formation. In the spirit of the CDF-S and GOODS projects, we intend to make the reduced narrow-band image publicly available.


National Optical Astronomy Observatory, 950 North Cherry Avenue, P.O. Box 26732, Tucson, Arizona 85726, Phone: (520) 318-8000, Fax: (520) 318-8360



NOAO >   Observing Info >   Approved Programs >   2003B-0385

noaoprop-help@noao.edu

Small NOAO Logo