DEEP U BAND AND R IMAGING OF GOODS-SOUTH: OBSERVATIONS, DATA REDUCTION AND FIRST RESULTS ,

Journal Article · Sat Aug 01 00:00:00 EDT 2009 · Astrophysical Journal, Supplement Series

DOI:https://doi.org/10.1088/0067-0049/183/2/244; COUNTRY OF INPUT: INTERNATIONAL ATOMIC ENERGY AGENCY (IAEA)· OSTI ID:21301646

Nonino, M; Cristiani, S; Vanzella, E ^[1]; Dickinson, M; Reddy, N ^[2]; Rosati, P ^[3]; Grazian, A ^[4]; Giavalisco, M ^[5]; Kuntschner, H; Fosbury, R A. E. ^[6]; Daddi, E ^[7]

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1. INAF - Osservatorio Astronomico di Trieste, Via Tiepolo 11, I-34131 Trieste (Italy)
2. NOAO, 950 N. Cherry Avenue, Tucson, AZ 85719 (United States)
3. European Southern Observatory, Karl-Schwarzschild-Str. 2, D-85748 Garching (Germany)
4. INAF - Osservatorio Astronomico di Roma, via Frascati 33, 00040, Monte Porzio Catone (Italy)
5. Department of Astronomy, University of Massachusetts, Amherst, MA 01003 (United States)
6. ST-ECF, Karl-Schwarzschild Str. 2, 85748 Garching (Germany)
7. CEA, Laboratoire AIM, Irfu/SAp, F-91191 Gif-sur-Yvette (France)

We present deep imaging in the U band covering an area of 630 arcmin{sup 2} centered on the southern field of the Great Observatories Origins Deep Survey (GOODS). The data were obtained with the VIMOS instrument at the European Southern Observatory (ESO) Very Large Telescope. The final images reach a magnitude limit U {sub lim} {approx} 29.8 (AB, 1{sigma}, in a 1'' radius aperture), and have good image quality, with full width at half-maximum {approx}0.''8. They are significantly deeper than previous U-band images available for the GOODS fields, and better match the sensitivity of other multiwavelength GOODS photometry. The deeper U-band data yield significantly improved photometric redshifts, especially in key redshift ranges such as 2 < z < 4, and deeper color-selected galaxy samples, e.g., Lyman break galaxies at z {approx} 3. We also present the co-addition of archival ESO VIMOS R-band data, with R {sub lim} {approx} 29 (AB, 1{sigma}, 1'' radius aperture), and image quality {approx}0.''75. We discuss the strategies for the observations and data reduction, and present the first results from the analysis of the co-added images.

• OSTI ID: 21301646
• Journal Information: Astrophysical Journal, Supplement Series, Vol. 183, Issue 2; Other Information: DOI: 10.1088/0067-0049/183/2/244; Country of input: International Atomic Energy Agency (IAEA); ISSN 0067-0049
• Country of Publication: United States
• Language: English

Related Subjects

79 ASTROPHYSICS
COSMOLOGY AND ASTRONOMY
99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE
APERTURES
COLOR
GALACTIC EVOLUTION
GALAXIES
IMAGES
PHOTOMETRY
RED SHIFT
SENSITIVITY
TELESCOPES