2004A&A...426..455W

Query : 2004A&A...426..455W

2004A&A...426..455W - Astronomy and Astrophysics, volume 426455-462 (2004/11-1)

Assessing the galaxy population out to z∼2 using the Hubble Deep Field South.

WIEGERT T., DE MELLO D.F. and HORELLOU C.

Abstract (from CDS):

In this work we use the Hubble Deep Field South (HDF-S) version 2 images to assess the galaxy population out to z∼2. We have used two methods of templates fitting of the spectral energy distributions to obtain photometric redshifts and classify the objects. The Bayesian photometric redshifts gave better results when compared with 54 spectroscopic redshifts available in the literature. Analysis of the rest-frame colour distribution shows a bimodality out to z∼1.4. We separated our sample in a blue and a red population at B-V=0.29. At low redshifts (0.2<z<0.6), ∼60% of the galaxies have B-V>0.29 whereas at higher redshifts ∼60% of the galaxies are bluer than B-V<0.29. Although in low numbers, a population of early-type galaxies (or heavily obscured low redshift galaxies) is seen out to z∼2.

Abstract Copyright: ∼

Journal keyword(s): cosmology: observations - galaxies: evolution - galaxies: statistics - galaxies: photometry

Nomenclature: Table 2: [WDH2004] NNNN N=7 among 1310.

Simbad objects: 1

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Number of rows : 1
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 NAME HDF-S reg 22 32 56 -60 33.0           ~ 580 0

Query : 2004A&A...426..455W

Basic data :
NAME HDF-S -- Region defined in the Sky
Other object types: otypes_help 		reg ()
ICRS coord. (ep=J2000) : 		22 32 56.0 -60 33 00 [ ] E ~
FK4 coord. (ep=B1950 eq=1950) : 		22 29 37.3 -60 48 28 [ ]
Gal coord. (ep=J2000) : 		328.2511 -49.2122 [ ]
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Identifiers (4) :
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NAME HDF-S NAME HDFS NAME Hubble Deep Field South NAME Southern Hubble Deep Field

References (580 between 1850 and 2026) (Total 580)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).
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