A Deep Wide-Field, Optical, and Near-Infrared Catalog of a Large Area around the Hubble Deep Field North*

P. Capak; L. L. Cowie; E. M. Hu; A. J. Barger; M. Dickinson; E. Fernandez; M. Giavalisco; Y. Komiyama; C. Kretchmer; C. McNally; S. Miyazaki; S. Okamura; D. Stern

doi:10.1086/380611

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A Deep Wide-Field, Optical, and Near-Infrared Catalog of a Large Area around the Hubble Deep Field North^*

P. Capak¹, L. L. Cowie¹, E. M. Hu¹, A. J. Barger^1,2,3, M. Dickinson⁴, E. Fernandez⁵, M. Giavalisco⁴, Y. Komiyama⁶, C. Kretchmer⁷, C. McNally⁸, S. Miyazaki⁶, S. Okamura⁹, and D. Stern^10,11

© 2004. The American Astronomical Society. All rights reserved. Printed in U.S.A.
The Astronomical Journal, Volume 127, Number 1 Citation P. Capak et al 2004 AJ 127 180 DOI 10.1086/380611

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Author affiliations

¹ Institute for Astronomy, University of Hawaii, 2680 Woodlawn Drive, Honolulu, HI 96822

² Department of Physics and Astronomy, University of Hawaii, 2505 Correa Road, Honolulu, HI 96822

³ Department of Astronomy, University of Wisconsin-Madison, 475 North Charter Street, Madison, WI 53706

⁴ Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218

⁵ New Mexico Institute of Mining and Technology, 801 Leroy Place, Socorro, NM 87801

⁶ Subaru Telescope, 650 North A`ohoku Place, Hilo, Hawaii 96720

⁷ Department of Physics and Astronomy, Johns Hopkins University, 3400 North Charles Street, Baltimore, MD 21218-2686

⁸ Department of Physics and Astronomy, University of Maine, Orono, ME 04469-5709

⁹ Department of Astronomy and Research Center for the Early Universe, School of Science, University of Tokyo, Bunkyo-ku, Tokyo, 113-0033 Japan

¹⁰ Jet Propulsion Laboratory, Mail Stop 169-327, California Institute of Technology, Pasadena, CA 91109

¹¹ Visiting Astronomer, Kitt Peak National Observatory, National Optical Astronomy Observatory, which is operated by the Association of Universities for Research in Astronomy, Inc., under cooperative agreement with the National Science Foundation

Dates

Received 2003 April 28
Accepted 2003 October 8

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Abstract

We have conducted a deep multicolor imaging survey of 0.2 deg² centered on the Hubble Deep Field North (HDF-N). We shall refer to this region as the Hawaii HDF-N. Deep data were collected in U, B, V, R, I, and z' bands over the central 0.2 deg² and in HK' over a smaller region covering the Chandra Deep Field North. The data were reduced to have accurate relative photometry and astrometry across the entire field to facilitate photometric redshifts and spectroscopic follow-up. We have compiled a catalog of 48,858 objects in the central 0.2 deg² detected at 5 σ significance in a 3'' aperture in either R or z' band. Number counts and color-magnitude diagrams are presented and shown to be consistent with previous observations. Using color selection we have measured the density of objects at 3 < z < 7. Our multicolor data indicates that samples selected at z > 5.5 using the Lyman break technique suffer from more contamination by low-redshift objects than suggested by previous studies.

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Footnotes

*
Based in part on data collected at Subaru Telescope, which is operated by the National Astronomical Observatory of Japan.

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