1. A [ITAL]K[/ITAL]-Band–selected Photometric Redshift Catalog in the Hubble Deep Field South: Sampling the Rest-Frame [ITAL]V[/ITAL] Band to [CLC][ITAL]z[/ITAL][/CLC] = 3
- Author
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Paul van der Werf, Hans-Walter Rix, Gregory Rudnick, Ivo Labbé, Konrad Kuijken, Huub Röttgering, Alan Moorwood, Marijn Franx, Pieter van Dokkum, and Lottie van Starkenburg
- Subjects
Physics ,Hubble Deep Field South ,Astronomy and Astrophysics ,Astrophysics::Cosmology and Extragalactic Astrophysics ,Astrophysics ,Lambda ,Omega ,Redshift ,Galaxy ,Luminosity ,Space and Planetary Science ,Galaxy formation and evolution ,Astrophysics::Solar and Stellar Astrophysics ,Astrophysics::Galaxy Astrophysics ,Photometric redshift - Abstract
We present the first results from the Faint Infra-Red Extragalactic Survey (FIRES) of the Hubble Deep Field South. Using a combination of deep near infrared data obtained with ISAAC at the VLT with the WFPC2 HST data, we construct a K-band selected sample of 136 galaxies with K(AB) =2. While this is higher than the fraction predicted in Omega_M=1 hierarchical models of galaxy formation we find that published predictions using pure luminosity evolution models produce too many bright galaxies at redshifts greater than unity. Finally, we use our broad wavelength coverage to measure the rest-frame UBV luminosities Lrest for z =1.4e10 h^{-2}Lsun at z~1.5-2, however, at z>2 we find very luminous galaxies with Lrest_V>=5e10 h^{-2}Lsun (for Omega_M=0.3,Lambda=0.7, H_o=100 h km s^{-1}Mpc^{-1}). Local B-band luminosity functions predict 0.1 galaxies in the redshift range 2 = 5e10 h^{-2}Lsun,B but we find 9. The discrepancy can be explained if L*_B increases by a factor of 2.4-3.2 with respect to locally determined values (abridged).
- Published
- 2001