NOAO >   Observing Info >   Approved Programs >   2012B-0520

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Proposal Information for 2012B-0520


PI: Andrew Baker, Rutgers, the State University of New Jersey, ajbaker@physics.rutgers.edu
Address: Department of Physics & Astronomy, 136 Frelinghuysen Road, Piscataway, NJ 08854-8019, USA

CoI: Eric Gawiser, Rutgers, the State University of New Jersey
CoI: Sheila Kannappan, University of North Carolina
CoI: Kartik Sheth, NRAO
CoI: Sarah Blyth, University of Cape Town
CoI: Benne Holwerda, ESA

Title: Deep Public u-band Imaging for the LADUMA Survey

Abstract: Understanding the history of galaxy evolution depends critically on understanding the evolution of galaxies' neutral atomic gas. We are now poised to make a major breakthrough on this front, thanks to the approval of our 5000 hr deep H I survey using MeerKAT, the South African precursor to the Square Kilometre Array (SKA). This project (LADUMA=Looking at the Distant Universe with the MeerKAT Array) will probe the H I line, initially to z ~ 0.6 and eventually to z ~ 1.4, both in individually detected galaxies and in stacks at the precise positions and redshifts of optically selected samples. We propose to obtain deep, homogeneous u-band imaging of the initial ~ 2 \rm deg^2 LADUMA footprint, which encompasses the Extended Chandra Deep Field South (ECDF-S). These data are an essential prerequisite for medium-resolution spectroscopy (and eventually, H I stacking) of galaxies in our target redshift range, and will make it possible to trace the relationship between stellar mass, star formation, and neutral atomic gas. The proposed observations take optimal advantage of large DECam field of view and its new u-band filter. In the spirit of previous CDF-S campaigns, we request no proprietary period and commit to making all reduced images public.


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 >   2012B-0520

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