NOAO >   Observing Info >   Approved Programs >   2017B-0299

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Program Information for 2017B-0299


PI: Matt Stevans, U. of Texas, Austin, stevans@astro.as.utexas.edu
Address: The University of Texas at Austin, Department of Astronomy, 2515 Speedway, Stop C1400, Austin, Texas 78712-1205 United States

CoI: Steven Finkelstein, U. of Texas, Austin
CoI: Isak Wold, U. of Texas, Austin
CoI: Casey Papovich, Texas A&M U.
CoI: Lalitwadee Kawinwanichakij, Texas A&M U.
CoI: Sydney Sherman, U. of Texas, Austin
CoI: Shardha Jogee, U. of Texas, Austin
CoI: Caryl Gronwall, Pennsylvania State U.
CoI: Robin B Ciardullo, Pennsylvania State U.
CoI: Jonathan Florez, U. of Texas, Austin
CoI: Karl Gebhardt, U. of Texas, Austin

Title: Spectroscopic Confirmation of the Brightest Galaxies at z=4

Abstract: We propose to observe 46 galaxy candidates that are among the UV-brightest Lyman break galaxies (LBGs) in the early universe (z~4). These galaxies were discovered using deep optical and far-infrared imaging covering the HETDEX/SHELA Field, a 18 deg^2 equatorial region within SDSS Stripe-82. GMOS spectra of these galaxies will spectroscopically validate their photometric redshifts and mitigate contamination by active galactic nuclei. These measurements will further our study of the bright-end of the LBG luminosity function and place new constraints on models of feedback and quenching in massive galaxies. We request 14.85 hours to observe 10 masks with GMOS.

Program Type: Standard/Extragalactic

Scheduled Nights:
Run 1 (2017B):  GEM-NQ/GMOSN -- 14.8hrs band 3 (GS-2017B-Q-77)
Run 2 (2017B):  GEM-SQ/GMOSS -- 14.8hrs band 3


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



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