Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aas...21342409g&link_type=abstract
American Astronomical Society, AAS Meeting #213, #424.09; Bulletin of the American Astronomical Society, Vol. 41, p.247
Astronomy and Astrophysics
Astronomy
Scientific paper
We have undertaken a deep narrow-band survey for Lyman-alpha emitters from z=3.08 to z=3.15 in the Extended Chandra Deep Field-South using the Mosaic camera on the CTIO 4-m telescope. Lyman-alpha emitters are one of the best examples of galaxies "in the act" of formation. Our survey covers 0.28 square degrees down to a limiting line flux of 1.5 x 10^-17 erg/cm^2/s. We have detected 250 LAEs. By combining our narrow-band data with deep archival broadband photometry from MUSYC (Multiwavelength Survey by Yale-Chile) we are able to determine the photometric properties of this sample. We will present both the Lyman-alpha and rest-frame UV luminosity functions of LAEs at z=3 and discuss the evolution of the LAE population from z 2 to z 6 as well as its relationship to the Lyman-break galaxy population. We will also discuss the equivalent widths, LAE colors, star formation rates, and dust properties of these objects.
We gratefully acknowledge financial support from the National Science Foundation, Department of Energy, and NASA.
Bond Nicholas
Ciardullo Robin
Feldmeier John . J.
Gawiser Eric
Gronwall Caryl
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