NOAO >   Observing Info >   Approved Programs >   2013A-0384

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Proposal Information for 2013A-0384


PI: Fuyan Bian, University of Arizona, fbian@as.arizona.edu
Address: Steward Observatory, 933 N Cherry Ave, Tucson, AZ 85721, U.S.A

CoI: Xiaohui Fan, University of Arizona
CoI: Arjun Dey, National Optical Astronomy Observatory
CoI: Richard Green, University of Arizona
CoI: Dan Stark, University of Arizona
CoI: Ian McGreer, University of Arizona
CoI: Linhua Jiang, Arizona State University

Title: Gas Kinematics in the Most Luminous Lyman Break Galaxies at Z~3

Abstract: We have discovered a population of ultra-luminous Lyman Break Galaxies (LBGs, L>6 L^*) at z~3 using wide and deep imaging surveys. These objects have the highest UV-based star formation rate (SFR) at more than a few hundred solar masses per year and are among the rarest and most intensive star forming systems in the early Universe. In addition, they are large systems, spatially-resolved even with ground- based imaging with half-light radius >5 kpc, and are now being targeted using HST to study their UV/optical morphology. We propose to carry out high spatial resolution integral field spectroscopic observations of [OIII]5007 emission in two most luminous Lyman break galaxies at z~3 with Gemini/NIFS. The proposed observations will allow us preform detailed studies on gas kinematics in these galaxies. When combed with the HST imaging, this proposed observations will provide crucial information on (1) probing their evolutionary stage and the mechanism to trigger the extremely intensive star formation in these galaxies, and (2) probing the origin of the high velocity dispersion in the high-redshift star-forming galaxies. This studies will place these most UV-active galaxies in the context of the formation and evolution of the most massive galaxies in the early Universe. 


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 >   2013A-0384

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