English

Redshifts in the Hubble Deep Field South

Astrophysics 2009-11-07 v1

Abstract

We present a catalog of 97 spectroscopic redshifts of z<1 galaxies in the Hubble Deep Field South (HDFS) and its Flanking Fields (FFs). In the HDFS proper, we observed approximately half the galaxies brighter than I(AB)=24 and obtained redshifts for 76% of them. Targets in our HDFS sample were pre-selected to be at z<1 based on photometric redshifts, while in the FFs a simple magnitude cut was used. The photometric redshift pre-selection in the HDFS resulted in a spectroscopic success rate that is significantly higher than in the FFs, where no pre-selection was applied. The RMS precision of our redshift measurements, determined from repeat observations, is delta_z=0.0003. We present the photometry and redshifts for the 97 objects for which we secured spectroscopic redshifts and describe the basic properties of this sample.

Keywords

Cite

@article{arxiv.astro-ph/0305544,
  title  = {Redshifts in the Hubble Deep Field South},
  author = {Marcin Sawicki and Gabriela Mallen-Ornelas},
  journal= {arXiv preprint arXiv:astro-ph/0305544},
  year   = {2009}
}

Comments

Accepted for publication in the Astronomical Journal