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UVUDF: Ultraviolet Imaging of the Hubble Ultradeep Field with Wide-field Camera 3

Harry I Teplitz, Marc Rafelski, Peter Kurczynski, Nicholas A Bond, Norman Grogin, Anton M Koekemoer, Hakim Atek, Thomas M Brown, Dan Coe, James W Colbert, Henry C Ferguson, Steven L Finkelstein, Jonathan P Gardner, Eric Gawiser, Mauro Giavalisco, Caryl Gronwall, Daniel J Hanish, Kyoung-Soo Lee, Duilia F de Mello, Swara Ravindranath, Russell E Ryan, Brian D Siana, Claudia Scarlata, Emmaris Soto, Elysse N Voyer, (8 Amherst U Mass Arthur M Wolfe GFSC, and UCSD) 9) Penn State

arXiv:1305.1357 [astro-ph.CO] 6 May 2013

We present an overview of a 90-orbit Hubble Space Telescope treasury program to obtain near ultraviolet imaging of the Hubble Ultra Deep Field using the Wide Field Camera 3 UVIS detector with the F225W, F275W, and F336W filters. This survey is designed to: (i) Investigate the episode of peak star formation activity in galaxies at 1. Preliminary results on number counts of UV-selected galaxies and morphology of galaxies at z~1 are presented. We find that the number density of UV dropouts at redshifts 1.7, 2.1, and 2.7 is largely consistent with the number predicted by published luminosity functions. We also confirm that the image mosaics have sufficient sensitivity and resolution to support the analysis of the evolution of star-forming clumps, reaching 28-29th magnitude depth at 5 sigma in a 0.2 arcsecond radius aperture depending on filter and observing epoch.

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