Physics
Scientific paper
Aug 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009noao.prop..514g&link_type=abstract
NOAO Proposal ID #2009B-0514
Physics
Scientific paper
We propose to augment our successful survey for Lyman Alpha Emitters (LAEs) at z=3.1 by adding deep NB3727A MOSAIC imaging of the Extended Hubble Deep Field-South, imaging that would allow us to construct a sample of ~ 350 LAEs at z=2.1. Clustering analysis of the z=3.1 LAEs implies that they are the progenitors of present-day L^* galaxies. The proposed observations would allow us to perform a similar analysis on a sample of z=2.1 LAEs and determine whether the descendants are ~L^* galaxies or perhaps even sub-L^* galaxies. We will also analyze the multiwavelength properties of the z=2.1 sample (in direct analogue to our published analyses at z=3.1) in order to study the evolution of this low-mass, nearly dust-free population of starbursting galaxies. Previous imaging campaigns have allowed us to obtain preliminary estimates of the properties of z=2.1 LAEs, but the addition of EHDF-S is necessary to reduce uncertainties due to ``cosmic variance'' and to constrain the bright end of the luminosity function. This latter measurement is of particular importance for designing dark energy surveys. We will make our reduced images and catalogs available to the community upon publication.
Bond Nicholas
Ciardullo Robin
Feldmeier John . J.
Francke Harold
Gawiser Eric
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