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Proposal Information for 2013B-0236


PI: Steven Finkelstein, The University of Texas at Austin, stevenf@astro.as.utexas.edu
Address: Department of Astronomy, 2515 Speedway, Stop C1400, Austin, TX 78712, USA

CoI: Karl Gebhardt, The University of Texas at Austin
CoI: Shardha Jogee, The University of Texas at Austin
CoI: Viviana Acquaviva, New York City College of Technology
CoI: Casey Papovich, Texas A&M University
CoI: Robin Ciardullo, Penn State University
CoI: Caryl Gronwall, Penn State University
CoI: Ralf Bender, Max Planck Institute for Extraterrestrial Physics
CoI: Guillermo Blanc, Carnegie Observatories
CoI: Roelof de Jong, Institute for Astrophysics Potsdam
CoI: Darren DePoy, Texas A&M University
CoI: Niv Drory, National Autonomous University of Mexico
CoI: Maximilian Fabricius, Max Planck Institute for Extraterrestrial Physics
CoI: Keely Finkelstein, The University of Texas at Austin
CoI: Eric Gawiser, Rutgers University
CoI: Jim Geach, McGill University
CoI: Jenny Greene, Princeton University
CoI: Alex Hagen, Penn State University
CoI: Gary Hill, The University of Texas at Austin
CoI: Ulrich Hopp, University Observatory Munich
CoI: Kyle Kaplan, The University of Texas at Austin
CoI: Martin Landriau, Max Planck Institute for Extraterrestrial Physics
CoI: Jennifer Marshall, Texas A&M University
CoI: Emily McLinden, The University of Texas at Austin
CoI: Erin Mentuch, The University of Texas at Austin
CoI: Roderik Overzier, The University of Texas at Austin
CoI: Matthias Steinmetz, Institute for Astrophysics Potsdam
CoI: Nicholas Suntzeff, Texas A&M University
CoI: Kim-Vy Tran, Texas A&M University
CoI: Sarah Tuttle, The University of Texas at Austin
CoI: Marco Viero, California Institute of Technology
CoI: Tim Weinzirl, The University of Texas at Austin
CoI: Lutz Wisotzki, Institute for Astrophysics Potsdam
CoI: Houri Ziaeepour, Max Planck Institute for Extraterrestrial Physics
CoI: Greg Zeimann, Penn State University

Title: The NEWFIRM HETDEX Survey - Probing the Growth of Galaxies with Cosmic Time

Abstract: We propose NEWFIRM K-band imaging over a 28 deg^2 equatorial region within SDSS Stripe 82 to finish building a unique and important extragalactic legacy field. This field will soon have ~300,000 \lya-based redshifts at 2 < z < 3.5 from the Hobby Eberly Telescope Dark Energy Experiment (HETDEX), deep imaging at 3.6(micron) and 4.5(micron) from the \it Spitzer-HETDEX Exploratory Large Area survey, far-IR data from \it Herschel, and deep optical imaging from the Dark Energy Survey. The addition of NEWFIRM K-band data will allow us to 1) Measure robust extinction-corrected star-formation rates (SFRs) down to 10 M\sol yr^-1 at stellar masses of 10^10 M\sol; 2) Calculate precise photometric redshifts for the non-\lya emitters in the sample; and 3) Study how the SFR depends on the dark matter halo mass and local environment. This large survey, together with the spectroscopic completeness and accurate halo mass measurements from HETDEX, is crucial to allow a comprehensive analysis at z ~ 2 - 3 out to high halo masses (log (\mh/M\sol)_z=2.5 > 13). This mass regime is particularly important, as it is where we track the progenitors of today's richest galaxy clusters and where the relationship between star formation and different modes of gas accretion is poorly constrained.


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