NOAO >   Observing Info >   Approved Programs >   2013A-0741

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Proposal Information for 2013A-0741


PI: David Schlegel, Lawrence Berkeley National Laboratory, djschlegel@lbl.gov
Address: Physics Department, 1 Cyclotron Rd., MS50R6032, Berkeley, CA 94720, USA

CoI: Nick Mostek, UC Berkeley / Space Sciences Lab
CoI: Arjun Dey, NOAO
CoI: Jeff Newman, Univ. of Pittsburgh / PITT-PACC
CoI: Peter Nugent, Lawrence Berkeley National Lab
CoI: Klaus Honsheid, Ohio State University
CoI: Dustin Lang, Carnegie-Mellon University
CoI: Eric Huff, Ohio State University
CoI: Nathalie Palanque-Delabrouille, CEA-Saclay
CoI: Rollin Thomas, Lawrence Berkeley National Lab
CoI: Nic Ross, Lawrence Berkeley National Lab

Title: An i-band Survey of the Equatorial Sky for MS-DESI

Abstract: We propose to obtain 1000 deg^2 of i-band imaging that will cover an equatorial region in the NGC to a depth of i<23.8. The data will pioneer galaxy target selection for the recently approved Mid-Scale Dark Energy Spectroscopic Instrument (MS-DESI), a spectroscopic survey of tens of millions of objects spanning redshifts z=0\rightarrow 3. The MS-DESI Key Project will probe the effects of dark energy on the expansion history using BAO and measure the gravitational growth history using redshift-space distortions. The i-band imaging will provide critical astrometry for faint galaxies, sculpt the MS-DESI target redshift distribution, and ultimately yield improved dark energy constraints. The data will have broad scientific legacy value for a variety of investigations. The unprecedented area and depth of the proposed survey will provide optical identification for all \emphWISE sources within the survey footprint and produce the first robust constraints on the clustering of >3L^* red galaxies at z$>1. As a source of deep, wide-field imaging beyond SDSS, our data will also have implications for Galactic halo structure and rare, high-redshift object discovery.


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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