Deep U band and R imaging of GOODS-South: Observations,data reduction and first results

Details Deep U band and R imaging of GOODS-South: Observations,data reduction and first results Deep U band and R imaging of GOODS-South: Observations,data reduction and first results

2009-06-23

arxiv.org/abs/0906.4250v2

Astrophys.J.Suppl.183:244-260,2009

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

Accepted for publication ApJS, 54 pages, 27 figures. Released data and full-quality paper version available at http://archiv

Scientific paper

10.1088/0067-0049/183/2/244

We present deep imaging in the {\em U} band covering an area of 630 arcmin$^{2}$ centered on the southern field of the Great Observatories Origins Deep Survey (GOODS). The data were obtained with the VIMOS instrument at the ESO Very Large Telescope. The final images reach a magnitude limit $U_{lim} \approx 29.8$ (AB, 1$\sigma$, in a 1\arcsec radius aperture), and have good image quality, with full width at half maximum $\approx 0.8\arcsec$. They are significantly deeper than previous U--band images available for the GOODS fields, and better match the sensitivity of other multi--wavelength GOODS photometry. The deeper U--band data yield significantly improved photometric redshifts, especially in key redshift ranges such as $2

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