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Title:
The Team Keck Treasury Redshift Survey of the GOODS-North Field
Authors:
Wirth, Gregory D.; Willmer, Christopher N. A.; Amico, Paola; Chaffee, Frederic H.; Goodrich, Robert W.; Kwok, Shui; Lyke, James E.; Mader, Jeff A.; Tran, Hien D.; Barger, Amy J.; Cowie, Lennox L.; Capak, Peter; Coil, Alison L.; Cooper, Michael C.; Conrad, Al; Davis, Marc; Faber, S. M.; Hu, Esther M.; Koo, David C.; Le Mignant, David; Newman, Jeffrey A.; Songaila, Antoinette
Affiliation:
AA(W. M. Keck Observatory, 65-1120 Mamalahoa Highway, Kamuela, HI 96743; .), AB(University of California Observatories/Lick Observatory, Department of Astronomy and Astrophysics, University of California, Santa Cruz, CA 95064.; On leave from Observatório Nacional, Brazil.), AC(W. M. Keck Observatory, 65-1120 Mamalahoa Highway, Kamuela, HI 96743; .), AD(W. M. Keck Observatory, 65-1120 Mamalahoa Highway, Kamuela, HI 96743; .), AE(W. M. Keck Observatory, 65-1120 Mamalahoa Highway, Kamuela, HI 96743; .), AF(W. M. Keck Observatory, 65-1120 Mamalahoa Highway, Kamuela, HI 96743; .), AG(W. M. Keck Observatory, 65-1120 Mamalahoa Highway, Kamuela, HI 96743; .), AH(W. M. Keck Observatory, 65-1120 Mamalahoa Highway, Kamuela, HI 96743; .), AI(W. M. Keck Observatory, 65-1120 Mamalahoa Highway, Kamuela, HI 96743; .), AJ(Institute for Astronomy, University of Hawaii, 2680 Woodlawn Drive, Honolulu, HI 96822.; Department of Astronomy, University of Wisconsin-Madison, 475 North Charter Street, Madison, WI 53706.), AK(Institute for Astronomy, University of Hawaii, 2680 Woodlawn Drive, Honolulu, HI 96822.), AL(Institute for Astronomy, University of Hawaii, 2680 Woodlawn Drive, Honolulu, HI 96822.), AM(Department of Astronomy, University of California, Berkeley, CA 94720.), AN(Department of Astronomy, University of California, Berkeley, CA 94720.), AO(W. M. Keck Observatory, 65-1120 Mamalahoa Highway, Kamuela, HI 96743; .), AP(Department of Astronomy, University of California, Berkeley, CA 94720.), AQ(University of California Observatories/Lick Observatory, Department of Astronomy and Astrophysics, University of California, Santa Cruz, CA 95064.), AR(Institute for Astronomy, University of Hawaii, 2680 Woodlawn Drive, Honolulu, HI 96822.), AS(University of California Observatories/Lick Observatory, Department of Astronomy and Astrophysics, University of California, Santa Cruz, CA 95064.), AT(W. M. Keck Observatory, 65-1120 Mamalahoa Highway, Kamuela, HI 96743; .), AU(Department of Astronomy, University of California, Berkeley, CA 94720.), AV(Institute for Astronomy, University of Hawaii, 2680 Woodlawn Drive, Honolulu, HI 96822.)
Publication:
The Astronomical Journal, Volume 127, Issue 6, pp. 3121-3136. (AJ Homepage)
Publication Date:
06/2004
Origin:
UCP
AJ Keywords:
Galaxies: Distances and Redshifts, Galaxies: Photometry
DOI:
10.1086/420999
Bibliographic Code:
2004AJ....127.3121W

Abstract

We report the results of an extensive imaging and spectroscopic survey in the Great Observatories Origins Deep Survey (GOODS)-North field completed using DEIMOS on the Keck II telescope. Observations of 2018 targets in a magnitude-limited sample of 2911 objects to RAB=24.4 yield secure redshifts for a sample of 1440 galaxies and active galactic nuclei (AGNs) plus 96 stars. In addition to redshifts and associated quality assessments, our catalog also includes photometric and astrometric measurements for all targets detected in our R-band imaging survey of the GOODS-North region. We investigate various sources of incompleteness and find the redshift catalog to be 53% complete at its limiting magnitude. The median redshift of z=0.65 is lower than in similar deep surveys because we did not select against low-redshift targets. Comparison with other redshift surveys in the same field, including a complementary Hawaii-led DEIMOS survey, establishes that our velocity uncertainties are as low as σ~40 km s-1 for red galaxies and that our redshift confidence assessments are accurate. The distributions of rest-frame magnitudes and colors among the sample agree well with model predictions out to and beyond z=1. We will release all survey data, including extracted one-dimensional and sky-subtracted two-dimensional spectra, thus providing a sizable and homogeneous database for the GOODS-North field, which will enable studies of large-scale structure, spectral indices, internal galaxy kinematics, and the predictive capabilities of photometric redshifts.

Based in part on data obtained at the W. M. Keck Observatory, which is operated as a scientific partnership among the California Institute of Technology, the University of California, and NASA, and was made possible by the generous financial support of the W. M. Keck Foundation.

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