Optical imaging of southern extragalactic fields with multiwavelength coverage

Computer Science

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Scientific paper

We propose to use the CTIO mosaic camera to image two southern fields, ES1 and CDFS, which have been targeted for study by near- through far-infrared surveys (with the ESO VISTA telescope, Spitzer and Herschel) and radio surveys with the Australia Telescope Compact Array and the Australian SKA pathfinder. These data will allow us to study the buildup of stellar mass in massive galaxies over a wide range of cosmic environments, compare obscured and unobscured star formation rates in high-z galaxies, and identify high redshift quasars. Our survey will extensively leverage previous observations by CTIO/Mosaic and ESO/WFI. Our specific goals are (1) to complete imaging in r and i to 24.2 and 23.2 (Vega) over the whole area of the fields studied by Spitzer and Herschel, and (2) to obtain deeper r and i-band data (to 25.0 and 24.0) in the center of ES1 to complement deep surveys by VISTA and warm Spitzer, and where deep data at shorter wavelengths exists from ESO.

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