A Visible Wavelength Search for Lyman-Break Galaxies at z 3

Type Conference Paper
Names P. H. Sell, M. L. N. Ashby, J. S. Huang, Z. Wang, S. Miyazaki
Proceedings Title Bulletin of the American Astronomical Society
Conference Name American Astronomical Society, AAS Meeting #207, #22.12
Volume 37
Pages 1194
Date December 1, 2005
URL http://adsabs.harvard.edu/abs/2005AAS...207.2212S
Library Catalog NASA ADS
Abstract To better understand galaxy evolution at high redshifts, we present a candidate sample of z 3 galaxies assembled using the Lyman-break technique from one 35.5'x35.5' field in the Extended Groth Strip, which is at a high galactic latitude in the constellation Bootes. We use a method of photometric preselection known as the dropout technique (Steidel et. al 1996), in which we categorize our sources using rest-UV colors observed at visible wavelengths. We use U-g' and g'-R colors (Steidel et. al 2003) to identify the candidate Lyman-break galaxies at a high selection efficiency. At z 3, we identify 351 candidates undetected in U and 560 candidates detected in U. We plan to confirm our Lyman-break galaxy candidates with spectroscopic follow-up in the near future. This research was supported by the National Science Foundation's Research Experiences for Undergraduates Program at the Harvard-Smithsonian Center for Astrophysics in Cambridge, MA.
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